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---shy ==-iDECLASSIF iED UNDER AUTHORJTY OF TH E
I INTE RAGENCY SECURJTYCLASSIFICATIO~ APP EAL P NELEO 13526 SECTJO~ 53(b)(3)
ISCA P APPEAL NO 2009-068 document no 5 DECLA SIFICATION DATE November 13 2014
SECRET
(U) INTERPLANETARY RE-ENTRY MECHANICS
AND ASSOCiATED RECOVERY RANGE
COMMAND AND CONTROL APPLICATIONS
OCTOBER 1963 TASKS 6182(22)
618278)
AIR FORCE MISSILE DEVELOPMENT CENTER
middotmiddot DEPUTY ~01 fliiGN tECHNOLOGY
ampltl 10~(~ SYSftfft (O~~cUU
MOUOMfll Alrl fORCE US
NtW Ml~CO
rxcux AJ middotbull bull middot~ COPY NR 3 G AFMOC 63-555~
SECHEl (This pcce ts unct~au tr~~c
1 Inormatbullon conllictlng w 1th or pertinently affecting that ~onshytained 1 n this publication should be forwarded by t he recip1ent
d1rectly to
AFMDC MDF) Holloman AFB New Mex1co 88330
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4 Do not return this copy When not needed destloy tn accordmiddotmiddot ance with pertinent sec_unty regulahons
5 his pubHcation has L gte designed to meet tha 3pecific nds oi the re cipient for intelhgence Furthe- d strritctlltHt - 1 the recipient of pats -- the whol middot sulordiuate elements must be based on the specific need middot-to-lmow of the rectpient to perform h i s a ~ 1gned m1ssionn (Authority AFCIN Policy Letter 205 S
da ted J February 1959)
bullbull
~middot-~-=--bullmiddot middot---~middot I bull _ -bullmiddot -~~ -middot1gt_bull_~~-- rmiddot--middot~-~---~--7-~-~~-~--bull middot~-- middot- ~ middot ltII middot
_~middot middot middot middotmiddotmiddotmiddot middot middot middotmiddot- -middot- _ --~ middotmiddot--middotmiddotmiddot middot~ middot middot ___
FOREIGN T ECHNOLOCY REPORT
AFMDC-TR-63-5
(Title Unc lassipoundied) lNTE RPLANETAR Y RE-ENTRY MECHANICS AND
ASSOCIATED RECOVERY RANGE COMMAND AND CONTROL APPLICATIONS
October 1963
Tasks 6 18222 6182(78)
Prepared lgty
Captain William J Barlow Mr Michael E Cason Jr
Th1s 1s a Foreign Technology document prepared and published by AFMDC or use primarily within AFSC It has net been coordinated within AFSC o r the Office o the ACSlntelligence Headquarters US A F and does not -ecessarily rltgtpresent an greed Al~ ForC O posit ion
DEPUTY FOR FOREIGN TECHNOLOGY AlR FORCE MISSIJE DEVELOPMENT c N i iiR
AIR FORCE SYSTEMS COMMAND HOLLOMAN AIR FORCE BASE NEW MEXl-0
AFMDC 63-5655SECRET (This page is unclassified)
-middot-~ middot- -middot-middot~--middot~~ 0 l bull
-
--
- ----- middotmiddotmiddotshy middotmiddotmiddot-middotmiddot shy - shy middot4-middot-middot-~- shy --- middot - shy --shy -- -middot~middot
5poundCREi
(U PREFACE
The inlormation contained in thgts Technical Report has been
prepared primanly for the use of AFSC pe r-sonnel cnQaged in th~
study opound Sovict cpace technology This contribution emphasizebull
11o bulltulated planetary re - ettry and land area recovery m echanics
and will be o intereampt to those atgtalyots c oncerned wlth future
Soviet p lane tary space technoloC)bull ~
(U) PUBLICATION REVIEW
Thia Foreign Techoology document has been reviewed and is
appovecl for difltribution within the Air )lor Syu~erlamp rbullnbull~~d (U)
FOR THE COMMANDER
~~ L t Col USAF Deputy for Foreign Technology
SECRET AFMlgtC 63 -5655
TABLE OF CONTENTS
Page
Preface
Summary iii
SECTION Indicators of a Recoverable Satellite Program bull bull bull bull bull bull bull bull bull lI middot SECTION ll Recovery from Interplanetary Orbits s middotl
middot middoti SECTION lll P lanetary Land Recovery Range 19
SECTION 1V Planetary Recovery Range Command and Control bullbull 24
Appendix 1 Glossary of Terms 31 -5ibliography bull 33
Distribution bull JS
i
LIST OF ILLUSTRATIONSmiddot l
i
Figure A Lobbing De~p Space Probe 2~
Figure 2 Landing Cor~i-or Widtt 8i
Figure 3 Approach and Re-Entry Trajectory 11~
Figure 4 On-Board Landing Guidance Systemmiddotior Interplanetary Vehicle 1lt
Figure 5 Optimum Planetary Recovery Ar~aamp 22 middot
Figure 6 Recovery Range Command and Control Netwcrk 2amp
Figure 7 Missio~ Control Network bull bull bull bull bull bull lO
Table 1 Unit Error Values along ampn Earth Approach Trajectory bull bull bull bull bull bull bull bull 17
ii
~ bull bullbull middotmiddot bullbull middot ~ ----- _ -middotmiddot~Lmiddot j_c middot middot - -
~- - - ~ ~ ~-
__- -- - middot - - --middotmiddotmiddotmiddotmiddotmiddot middotmiddot-middotmiddotmiddot-middot--middotmiddot-- _-
(U) SUMMARY
Purpose
This Technical Report was prepared in accordance with
requirements established by the Foreign Technology Division in i I Tasks 6 182(Z2l (page 28) Planetary Exploration Sy11tem PES)l
Command and Control Application$ at Recovery Range and 618278)
(page 100) Planetary Exploration System PES) Land uea Recovery
Range of the Soviet Planotary E xploration Program TOPS (51
Concluaiona - a Recoverable scientific planetry space miseionamp are
believed to be included in future Soviet pl anning
b Recoverrble planetary apace roisalon pTogramming ia
tied directly to state -of - tlle-art advaJce in the fields of inertial
guidance equiptn~lt tracking techJology power ellui pment et-
c Oplmum lamcl windows for p lanetary apace veUcles
restr1ct and minlmi~e test conditions for advanced technological
concepts
d Because opound the sophistication of these miampBiOnB and the
eaUmated bullgtze and relative inaccuracies of prese1t Sbullwiet 6paceshy
craft guidance control syst~mamp it 1s not ielt ~h2-t gt ucil
recovery will be attempted by the Soviets prior to 1972
AFMDC 63-5655SECRET
middotmiddotmiddotmiddot middot --middot --~-~ middot-middotmiddot--middotmiddotmiddotmiddot _
e Only meager evidence exists which would suggest that the
Soviets intend to expand or otherwise improve their deep space
tracking capability evidently being content for the present middotilth
the Crimean facility _l8f
Background High1ights
A comprehensive review of both US and Soviet literature
indicates that recoverable planetary- probes are programmed for
futuro scientific missions The dates involved however will be
dependent on the state-of-the-art advances in such critical areas
as inertial guidaIce tracking systems power supply systems -middot electric propulsion etc Ul
A brtef look at the-8eeP space experiments thus far conducted
by both co~ntriee gives some insight into the complel mission
requirements Problems encountered by the Soviet3 in their deep
space nlissions -ave ~ndomiddot~tedly delayer any time schedult middot~~ich
gtnay have been plaed r 1middote-obull erable planetary misEgt ions Recent
proposals in US technology suggests a 1972-75 time scheduling
for a recoverable planetary vehicle ir this country Th~r tirre
pe_riod however is extremely flexible and again is dependent
upon state-opound~the-art advancements (U)
Because the US does not have a recoverable planetlaquoty vehicle
middot on the drawing board at this time and no information exists il1 the
iV
AFMDC 63-SbSSSECRET
__ - _____ ~middot-middot _____ ----------middotmiddotmiddotmiddot-middot-middot
SECRET
area opound Soviet recoverabl~ planetary missions tide report deals
prilnarily with advanced technological theory supported by current
Soviet recovery mechanlcs (81
Dioeussion
The first Soviet attempt to inject a vehicle into a deep space
trajectory occurred in 1960 On 10 and H October 1960 two illbull
f ated Mars probes were laun ehed from TTMTR These vehicles
080 the Category A ICBM for icitial boost and ~ new third stage
or injection into an earth-orbit This new etage was previously
uaobaervcd and haG a thrust oi --65 000 pounds The tint successbull
ful light opound this sy4tem was on 4 February 1961 however a fourth --middot otae used to inject the payload from a parking orbit into a Venus
tra~ectory apparently ailed on that date A second Venus prbbe
attempt on lZ February l961 did achieve a Venutt ny-by indicatios
ltbat all thc strglttamp f~-Llcti ned aOtisf~ctorHy however tbull ~mmbullmi ~ caUcms llrk laili_ Ttitgt ~_ 1peca probe progran~ higt ltonQngtgtCci
in A-uguat and Septernhltt 1962 (3 Venua fai1ure11)bull and October and
November 196~ (Z Mar~ failuru and I succeuful Maa probgt
Tbampre has been no intelligence evidence or official Soviet announce~
ment to indicate that the USSR had any program to launch n recoverable
planetary probe Indaed the engineerins problems o irttrplaabulletary
navigation attitude control communications r e bull enhmiddoty att
AFMDC 63 - 5655SEE RET
- ~
i I i middotf j i bull
- ---- middotmiddot middot ~ middot _ middot----middotmiddot- --middotshy~ middotmiddot middotmiddotmiddot- ~middot----~ shy
SECRE T
reco very a r e much more complex for s uch a planetary mission
than for near-earth or cislWlar miosions any Soviet prog r am to
accompli sh such a shot would have to be accompamed by a
tremendous sophistication of thei r astro -inertial guidance and
spacecraft control system Such self-contained systems are
necessary for a precisely controtld fly -by opound another planet and
for a well-controUed return to ear th (81
-
Vi
AFMDC 63 - 5655SECRET
middot_ lt bullmiddot 11 - - -~_ - gt middot- bullbull middot~
middot -- ~ bull -- ~ middot- bull bull - bull ( bull bull bull 4 bull bull bull bull bull~
____ -middotmiddotmiddot ~ --middotmiddot--middot ----- _ - _
SECTION
INDICATORS OF A RECOVERABLE SATELLITE PROGRAM
freliminary to the launch of an actual recoverable planetary
vehicle will be tests designed to prove the reliability and poundeasishy
bility o equipment for such missions Indicators which would
reflect that the Soviets are pursuing such a program include
I1 Boosted re-entry ballistic missile firings Such
test$ would aubject components and vehicles to the re-entry ~~locitiea anticipated for interplanetary orbits - on the order of
35000-43000 ft aec U) z Test orbit It is possible to launch a recoverable
space probe on a round trip orbit into space and back requiting
only six months (see Fig 1~ The ptbullobe is launched with a
velocity relative to the earth which is normal to the ecliptic
Thus the plane of the reaulting vehicle orh~t Inkes a smiddot ~a~ti~oi
angle with the plane of the ecliptic and the orbit has a line of
nodes through the launching site The other end of the lin of
nodes is through the recovery site wldch is reached six r~onths
later If the same magnitude of velocity were used for tb5s lobbing
shot as is us ed for a zoecoverable interplanetary spalte prob~ the
vehicle would reach the maximum distance of 15 million m llt~s from
1 _
UNCLASSIFIED
-EARTH AT LOB RECOVERY
I
LAUNCH
FIG 1 A lOSSING DEEP SPACE PROSE
UNCLASSI FlED
middot--- _ ---- middotmiddotmiddot- middotmiddotmiddot -shy _____ -----middot-4__lt4 bullbull- bull bullbullbull bull 4 -middotmiddot
SECRET earth The advantage of such a test orbit ia that 1ts short range
allows a cons1derable amount of data on vehicle performance to
be transmitted back to earth Further the use o a mrectio nal
antenna would not be required thus a breakdown in the attitude
control system of the vehu~le could be diagnosed by telemetry
If such a breakdown occurred at the far greater ranges of an
interplanetary probe it might not be diagnosed inasmuch as the
communications channel depends upon the gain oi the dir~ectlonal
antenna pointed at earth (U)
3 Development of additional deep space i racking
stat1ons The precise orbit deternUnation required for recovershy --middot able middotvehicles will result in the need for additional sophisticated
optical and electronic trackmg facilit1es in the USSR (U)
4 Structural heattng Many problems exist concerning
heatlng of snperorbital re-egttly vPhicle a manit ~ing of tlois
field car ieid ~_ om~ -~gtt ~s to Soviet plan11 for recoverable
planetary missions (U)
S For a true interplanetary round tr~p - ~Ulth as the
example oi the earth to Venus surface to earth surface bull a
t~remendouli ma9 s ratio is required opound chemical prrJpellants In
fact with a respectable speciic impulse of 310 secoud2 and a
3
SECRamiddot
~middot-middot-middot- --- ----middot - - ~ - -- ----middot -~ ------middot middot---middot------- -- - ~---middotmiddot-- - - -
SECTION ll
RECOVERY FROM INTERPLANETARY ORBITS
A Introduction
ln any planetary recovery program there are three bas1c
catego1middotie11 of recovery capsules In order of increasing ~ize
weight and complexity they are
o the instrument capsule
the biocapsule
Q the astronaut capsule (U)
The primary reasons for recovering instrumented probes __
include (l) to determine the effect of the space environment on
space-borne equipment (2) to attempt to simplify the equipment
reduce its complexity and hence improve its reliability and (3)
to develop recovery techniques for the benefit of future orbital
glide programs The scientific datg collected in lthe vicinity of
the target plmet will normally have been telemetered ba~k to
earth however a close review of tha actual pack ~glaquo vbullill enhance
the value of the collected information Future exp~imeots will
permit the development of biosatellites with the ass ranee of
regaining the specimens for proper evalu tioo of r~ middot middot~ts
FurthPr a weU-designed space capsule with a low Crmiddotlt may
5
- -- -middotmiddot- middotmiddot - middot ---- middot ~middotmiddotmiddot --middot-middotmiddot middot~middot- middot middot middotmiddotmiddot--middotmiddotmiddotmiddot --~---middot-middot-~----middotmiddotmiddotmiddot------~ middot- middotmiddotmiddot -middotmiddot~ middotmiddot--middotmiddotmiddotmiddot
become for the astronaut what the parachute is to the aviator shy
a chance for survival in case oi failure of the main vehicle Such
a human middot-carryng biocapaule would have to be equipped with
stabilizers jet and aerodynamic to prevent rotation and
tuInbling (U)
B Ballistic Vehicles
Our discussion will be limited to the recovery of pulely ballistic
interplanetary vehicles inasmuch as that wi1l most probably be the
design of all initial vehicles in a space recovery program The
sphere is the present prototype of a ballistic space capsule which -
can be used to advantage for recoverable planetary missions Of
course every syn1metric body at zero angle of attack is also a
nonlifting (ie ballistic) body and could be utilized for the flight -
Fer a sphere the drag coefficient atays close to unity most of the
time and if i middot~ loses litte middotJeight due tn blai-n t gtalhsti-
coeC bull _ient __- bull ~emuna essentially constant (U)CnA
The tleajectory which a typical superorbital ploneuy) ballistic
-e-entry vehicle follows is defined by
Qgt initial re-entry velocity Vi
Ill initial re-entry angle Y
o ballistic coefficient of vehicle (-c2)
middotmiddot - ~middot middot middot middot ~
- -middot-~- bull middot----- ----middot---- - - middot - _- ~--------- ~ --- -T------ - --middot--middot~---- - ___
~ bull ltll bull
-- middot - - bullbull --- middotmiddotmiddotmiddotmiddot _ middot---middot bull- - - _J_ __ -middot
Most re-entry vehicle trajectories are treated as a two-body problem
1nvolvins a central forre 1eld with the assumption of a nonr-otat ing
atmosphere and 7ero thrust S tarting with a ltnown initi al velocity
altitude and angle between the velocity vector and the local horishy
pounde ntal trajec tory parameters dete r mined are velocity alti tude
Ugbt path angle t angential acceleration rate of altitude change and
the geocentric angle - all as unctions of the independent variable i time (see Roeences 13 and 15) Aa can be seen these var iables
wtllllrovide an infinite number of re-entry trajectQries until the
actual vehi cle and mission parame~ere are described As aI r I
1 r
practicd matter re-entry anatee will probably be kept under -10deg
W1th initial velocities on the order of 35000 to 430CO Ct sec (U) middotshyI C Re-Entry CorridorI i Well known is the fact thegtt the re-entry angl o determination is I ~ J quite critical U er~ry is oo -hllow the v~~icle i 1t~htlbulltJ
pierce tht ITIsple~ ~bullbull 1 continue out into space or illto a
geocentric orb1t) on the other hand a too-large entry a ngle yields
heating and structural (deceleration) problems wlllch could adver sely
affect the v$bicle Thi~ aivea rise to the concept of the re-entry
corridor which is defined by an undershoot and overanoot boundary
The corr~dor width w is given a11 the diatance betwcaen the conic
per iaecs of the two boundarieu (ice Fig Z) As h app-nt ro1n
--
- ~-- middot- - middotmiddot middotmiddot--middot middotmiddotmiddotmiddotmiddotmiddot-- -----middot -- ----- -middotmiddot- -middot- _______ ___ _____-------middot- -middot- middot-middot- ---middotmiddot
UNCLASSIFIED
VEHICLE
middot middot
CONiCS
FIG Z LANDING CORRIDOR WIDTH
UNCLASSIFIED 8
_ - - middot middot- -- -~middotmiddot __ _ _ _~ middot middot middot _~-middot __ _-- ~ middotmiddotmiddotmiddotmiddotshy_
I
I l
l -1
f I
r ~-i
the preceltHng discussion the Wldth o ( the corridor w lll be a
unction o entry veloclty entzy angle and ballistic cocliicient
(Liltdrag ratios and modulation metbcxs al so influence w for
nonballistic boche=) Consequently for a g~ven velucle and entry
veloc1ty Lhe corridor may be represented by a range of acceptshy
able entry angles Conversely if the range o acceptable eotry
angles as known the corndor width is determined by calculating
the Keplenan perigees and measuring the dHeren c e between
peri gee alti tude- Corridor width as depoundmed by either w 01 Y
may thereioce be used to s t ipulate the maximum tolerable errors -for a guidance syatem U)
D Space Vehi cl Veloc i tiea
The veloci ti es assoc iated with space miesions are
circular
ell ipse bull
parabolic
hyperbolic
where K famp the gravitattonal parameter a charact eamiddot lc constant
16 3 of the attract iog body M (or earth it io 140752 X ) t I e ecZ)
a nd r 1s th e radial distance from the attrac ti ng focur_ All e arh 1
__ _ _____ _~ middot _ --middotmiddot~-- ~-
satelhtes possess either circula1middot 01 elliptical velocities In a
parabolic orbit the vehicle 1s entire kinetic energy is used up in
overcoming the central bodys entire potential energy between the
in9tantaneous distance and infinity The vehicle therefore has a
velocity of 0 at infinity -that is after escape In a hyperbolic
orb1t the vehicle has more kinetic energy than necessary for
overconung the gravitational potential opound the central body Thereshy
fore even after escape from the body the vehicle has a finite
remaining velocity which is used to change its orbital energy with
respect to the central force field of the middotnext higher order bull namely
the solar field (U
E Re-Entry Maneuvers
The maneuvers that are required to convert the ~yperbolic
approach orbit which develops as the vehicle begins to respond to
the influence o the gravitational filld of i~s ds~natim to an crbit
which leads to 11afe penetl ~middotion of the plbullll~tary atmosphere will _-
now be discussed (see Fig 3) The criteria for a eatisfactory
landing trajectory include the concept of a landing corridor described
above Sale landing paths are correlated with the configuration of
the spacecraft and with the altitude of the Keplerian perigees for
the approach trajectory This is the perigee which would occur if
I the approach trajectory were not perturbed by the effects of
10
- middotshy
--
I
l-- ___ ~-~middot--~----~~--c- ~ ---~ --=-middot~---~--~------middot--- middot middot ~ -- -~-~--~ -~~~ ----- --~~- ~ middot-_
______ _ --- -middot--middot- ---middot- middotmiddot-middotmiddot ---middotmiddot__--- middotmiddot - middot
UNCLASS IFI EO
-middot middotmiddotshy
bull
I i ~
-F~G 3 APPROACH middotANO ltRE-ENTRY TRAJECTORY
UNCLASSIF1EO
l J
-shyltmiddot
~ - - - - - -
~-tA~ - middot middotmiddot ~
~j
~ middot----- shy
- -- -middotmiddot - ~ I bull
- - bull -~ bull 1 I gt bull 0 bull bull o 9
- ---middot middotmiddotmiddot- -middot -middot - - ----middot--middot--- ____ -----middot ___________ __ -----~
I
-~
atmospheric drag Using thiamp correlation the control of the
spacecraft to place it in a landing path will be accomplished 1f it
1s COttrolled in such a way as to _place its Keplerian perigee
wtthin a dea1gnated landing corridor This is accomplished by
maneuvers which modiy the approach trajectory until the orbit
relations which may be measured indicate a value of perigee
_ radius rp and velocity vpbull which are within the indicated
landing corridor It is envisioned that such a 1middoteturn problem will
be accomplished by the application of corrections (coarse and
iine) to the return trajectory as follows
-shy1 First corrections are applied at a point sufficiently
disant to assure_that the trajectory will close with the earth such
as to allow fine corrections at a later time This first correction
i rather simple in application and for middotbest results it will be
i J
pe rormed at the greatEgtst pc sible distn shye h om earth in ce bull bullro
conserve fuel Th~gt -1istane iF hmiddottuted oy the accuracy with which 1 Lhe correction can be computed and applied U)
2 The liecond correction adjusts the approach trajeuroctory
c3usmg it to pass through the narrow landing corridor Thi6
corrlction is applied fa1rly close to earth when precision meas1bullreshy
menta of the trajectory are feasible Without the first correction
~ 12 i
- bullbull-bull--bullbullbull bullmiddot-~-- middot-Wbullbull bull _ oO
excessive p r opulsion energy might be required to perforrn the
second correction (t1)
3 The third correction is roquired to convert the approach
orbit f rom one which has 1ts perigee in the chosen landing corridor
to one whleh aetuaUy re-enteu the at moephere and i s recover ed
This will normally be accomplished by retrorocket deceleration
but in some caees an atmospheric - induced d rag could be ued (U)
The accuracy o the guidance r eq uired or landing control is
thoroughly r Pvie wed in a NASA r eport by Chapman (Reference )
The consequences of an inaccurate solution to the re-entry homing
problem are considered to be intolerable therefore the uae o shyan opegt loop solution i e r ejectOltl in favor ol a closed loop guidance
bullIaystcm In the latter eystem fliaht condltionbull are conllauauely I
bulljmonitored and correctioxu applied a10 needed thie syatem r equires__ middot
an accur ate predicllon syatem on bord to orpoundt nons c f
the vehicle Correctionbull may be i1tror 1d through applieatlon o
continuoua thrust or t~ough impuleee ~t aelecteci inteJvals (U)
F Re -Eotry Guidance System
A postulated interplAnetary homing re-entry guidance ~chenu
usmg on-board componclts i1 dcpcted in Fig 4 Meaauremente
of ranae r range rate l and the rate opound change of the Une ol
13
1
TRAJECTORY COMPUTER
middotp ~shyK II t ltmiddot )
I 1
CO~TROLLER
V a in ltjJ
UNCL ASSI FIED
STELLAR TRACKING SYSTEM
tJ GYRO- I NERTIAL r-shy =-1 ~ REFERENCE
1 _
ampVACTUAL
A T TIT UOE CONTROL OF
PITCH AXIS ROLL AXIS
AV rshy--shy- -0
11---shy - g
MPNEUVER PJltOPULSION
FIG 4 ON- BOARD LANDING GUIDANCE SYSTEM FOR INTERPLANETARY VEHICLE
UNCLASSIFIED
- ~ __shy- -----middot ---middot--middot~middot-middotmiddot shy middot ---middotmiddot----shy-shy-middot~-----shy
~
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
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gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
1 Inormatbullon conllictlng w 1th or pertinently affecting that ~onshytained 1 n this publication should be forwarded by t he recip1ent
d1rectly to
AFMDC MDF) Holloman AFB New Mex1co 88330
Ths 1n no way abbrogates or alters responsibthty for sendmg such mformatlOn or any pertinent intelllgence data through already estabhahed mtelEgence collectton channels of the various services cr agenc1es of the US Government
2 WARNING Ths document contains information affecting the national defense of the US within the meaning opound the Ecpionage Law T1~le 18 US C Sections 793 and 794 Its tr ansmission or the revelatton of 1ta contents in any manner to an unauthorized
person is prohib1ted by law
3 Copi es have not been placed in the DDC collection Address
all requests for copies to AFMDC (MDF)
4 Do not return this copy When not needed destloy tn accordmiddotmiddot ance with pertinent sec_unty regulahons
5 his pubHcation has L gte designed to meet tha 3pecific nds oi the re cipient for intelhgence Furthe- d strritctlltHt - 1 the recipient of pats -- the whol middot sulordiuate elements must be based on the specific need middot-to-lmow of the rectpient to perform h i s a ~ 1gned m1ssionn (Authority AFCIN Policy Letter 205 S
da ted J February 1959)
bullbull
~middot-~-=--bullmiddot middot---~middot I bull _ -bullmiddot -~~ -middot1gt_bull_~~-- rmiddot--middot~-~---~--7-~-~~-~--bull middot~-- middot- ~ middot ltII middot
_~middot middot middot middotmiddotmiddotmiddot middot middot middotmiddot- -middot- _ --~ middotmiddot--middotmiddotmiddot middot~ middot middot ___
FOREIGN T ECHNOLOCY REPORT
AFMDC-TR-63-5
(Title Unc lassipoundied) lNTE RPLANETAR Y RE-ENTRY MECHANICS AND
ASSOCIATED RECOVERY RANGE COMMAND AND CONTROL APPLICATIONS
October 1963
Tasks 6 18222 6182(78)
Prepared lgty
Captain William J Barlow Mr Michael E Cason Jr
Th1s 1s a Foreign Technology document prepared and published by AFMDC or use primarily within AFSC It has net been coordinated within AFSC o r the Office o the ACSlntelligence Headquarters US A F and does not -ecessarily rltgtpresent an greed Al~ ForC O posit ion
DEPUTY FOR FOREIGN TECHNOLOGY AlR FORCE MISSIJE DEVELOPMENT c N i iiR
AIR FORCE SYSTEMS COMMAND HOLLOMAN AIR FORCE BASE NEW MEXl-0
AFMDC 63-5655SECRET (This page is unclassified)
-middot-~ middot- -middot-middot~--middot~~ 0 l bull
-
--
- ----- middotmiddotmiddotshy middotmiddotmiddot-middotmiddot shy - shy middot4-middot-middot-~- shy --- middot - shy --shy -- -middot~middot
5poundCREi
(U PREFACE
The inlormation contained in thgts Technical Report has been
prepared primanly for the use of AFSC pe r-sonnel cnQaged in th~
study opound Sovict cpace technology This contribution emphasizebull
11o bulltulated planetary re - ettry and land area recovery m echanics
and will be o intereampt to those atgtalyots c oncerned wlth future
Soviet p lane tary space technoloC)bull ~
(U) PUBLICATION REVIEW
Thia Foreign Techoology document has been reviewed and is
appovecl for difltribution within the Air )lor Syu~erlamp rbullnbull~~d (U)
FOR THE COMMANDER
~~ L t Col USAF Deputy for Foreign Technology
SECRET AFMlgtC 63 -5655
TABLE OF CONTENTS
Page
Preface
Summary iii
SECTION Indicators of a Recoverable Satellite Program bull bull bull bull bull bull bull bull bull lI middot SECTION ll Recovery from Interplanetary Orbits s middotl
middot middoti SECTION lll P lanetary Land Recovery Range 19
SECTION 1V Planetary Recovery Range Command and Control bullbull 24
Appendix 1 Glossary of Terms 31 -5ibliography bull 33
Distribution bull JS
i
LIST OF ILLUSTRATIONSmiddot l
i
Figure A Lobbing De~p Space Probe 2~
Figure 2 Landing Cor~i-or Widtt 8i
Figure 3 Approach and Re-Entry Trajectory 11~
Figure 4 On-Board Landing Guidance Systemmiddotior Interplanetary Vehicle 1lt
Figure 5 Optimum Planetary Recovery Ar~aamp 22 middot
Figure 6 Recovery Range Command and Control Netwcrk 2amp
Figure 7 Missio~ Control Network bull bull bull bull bull bull lO
Table 1 Unit Error Values along ampn Earth Approach Trajectory bull bull bull bull bull bull bull bull 17
ii
~ bull bullbull middotmiddot bullbull middot ~ ----- _ -middotmiddot~Lmiddot j_c middot middot - -
~- - - ~ ~ ~-
__- -- - middot - - --middotmiddotmiddotmiddotmiddotmiddot middotmiddot-middotmiddotmiddot-middot--middotmiddot-- _-
(U) SUMMARY
Purpose
This Technical Report was prepared in accordance with
requirements established by the Foreign Technology Division in i I Tasks 6 182(Z2l (page 28) Planetary Exploration Sy11tem PES)l
Command and Control Application$ at Recovery Range and 618278)
(page 100) Planetary Exploration System PES) Land uea Recovery
Range of the Soviet Planotary E xploration Program TOPS (51
Concluaiona - a Recoverable scientific planetry space miseionamp are
believed to be included in future Soviet pl anning
b Recoverrble planetary apace roisalon pTogramming ia
tied directly to state -of - tlle-art advaJce in the fields of inertial
guidance equiptn~lt tracking techJology power ellui pment et-
c Oplmum lamcl windows for p lanetary apace veUcles
restr1ct and minlmi~e test conditions for advanced technological
concepts
d Because opound the sophistication of these miampBiOnB and the
eaUmated bullgtze and relative inaccuracies of prese1t Sbullwiet 6paceshy
craft guidance control syst~mamp it 1s not ielt ~h2-t gt ucil
recovery will be attempted by the Soviets prior to 1972
AFMDC 63-5655SECRET
middotmiddotmiddotmiddot middot --middot --~-~ middot-middotmiddot--middotmiddotmiddotmiddot _
e Only meager evidence exists which would suggest that the
Soviets intend to expand or otherwise improve their deep space
tracking capability evidently being content for the present middotilth
the Crimean facility _l8f
Background High1ights
A comprehensive review of both US and Soviet literature
indicates that recoverable planetary- probes are programmed for
futuro scientific missions The dates involved however will be
dependent on the state-of-the-art advances in such critical areas
as inertial guidaIce tracking systems power supply systems -middot electric propulsion etc Ul
A brtef look at the-8eeP space experiments thus far conducted
by both co~ntriee gives some insight into the complel mission
requirements Problems encountered by the Soviet3 in their deep
space nlissions -ave ~ndomiddot~tedly delayer any time schedult middot~~ich
gtnay have been plaed r 1middote-obull erable planetary misEgt ions Recent
proposals in US technology suggests a 1972-75 time scheduling
for a recoverable planetary vehicle ir this country Th~r tirre
pe_riod however is extremely flexible and again is dependent
upon state-opound~the-art advancements (U)
Because the US does not have a recoverable planetlaquoty vehicle
middot on the drawing board at this time and no information exists il1 the
iV
AFMDC 63-SbSSSECRET
__ - _____ ~middot-middot _____ ----------middotmiddotmiddotmiddot-middot-middot
SECRET
area opound Soviet recoverabl~ planetary missions tide report deals
prilnarily with advanced technological theory supported by current
Soviet recovery mechanlcs (81
Dioeussion
The first Soviet attempt to inject a vehicle into a deep space
trajectory occurred in 1960 On 10 and H October 1960 two illbull
f ated Mars probes were laun ehed from TTMTR These vehicles
080 the Category A ICBM for icitial boost and ~ new third stage
or injection into an earth-orbit This new etage was previously
uaobaervcd and haG a thrust oi --65 000 pounds The tint successbull
ful light opound this sy4tem was on 4 February 1961 however a fourth --middot otae used to inject the payload from a parking orbit into a Venus
tra~ectory apparently ailed on that date A second Venus prbbe
attempt on lZ February l961 did achieve a Venutt ny-by indicatios
ltbat all thc strglttamp f~-Llcti ned aOtisf~ctorHy however tbull ~mmbullmi ~ caUcms llrk laili_ Ttitgt ~_ 1peca probe progran~ higt ltonQngtgtCci
in A-uguat and Septernhltt 1962 (3 Venua fai1ure11)bull and October and
November 196~ (Z Mar~ failuru and I succeuful Maa probgt
Tbampre has been no intelligence evidence or official Soviet announce~
ment to indicate that the USSR had any program to launch n recoverable
planetary probe Indaed the engineerins problems o irttrplaabulletary
navigation attitude control communications r e bull enhmiddoty att
AFMDC 63 - 5655SEE RET
- ~
i I i middotf j i bull
- ---- middotmiddot middot ~ middot _ middot----middotmiddot- --middotshy~ middotmiddot middotmiddotmiddot- ~middot----~ shy
SECRE T
reco very a r e much more complex for s uch a planetary mission
than for near-earth or cislWlar miosions any Soviet prog r am to
accompli sh such a shot would have to be accompamed by a
tremendous sophistication of thei r astro -inertial guidance and
spacecraft control system Such self-contained systems are
necessary for a precisely controtld fly -by opound another planet and
for a well-controUed return to ear th (81
-
Vi
AFMDC 63 - 5655SECRET
middot_ lt bullmiddot 11 - - -~_ - gt middot- bullbull middot~
middot -- ~ bull -- ~ middot- bull bull - bull ( bull bull bull 4 bull bull bull bull bull~
____ -middotmiddotmiddot ~ --middotmiddot--middot ----- _ - _
SECTION
INDICATORS OF A RECOVERABLE SATELLITE PROGRAM
freliminary to the launch of an actual recoverable planetary
vehicle will be tests designed to prove the reliability and poundeasishy
bility o equipment for such missions Indicators which would
reflect that the Soviets are pursuing such a program include
I1 Boosted re-entry ballistic missile firings Such
test$ would aubject components and vehicles to the re-entry ~~locitiea anticipated for interplanetary orbits - on the order of
35000-43000 ft aec U) z Test orbit It is possible to launch a recoverable
space probe on a round trip orbit into space and back requiting
only six months (see Fig 1~ The ptbullobe is launched with a
velocity relative to the earth which is normal to the ecliptic
Thus the plane of the reaulting vehicle orh~t Inkes a smiddot ~a~ti~oi
angle with the plane of the ecliptic and the orbit has a line of
nodes through the launching site The other end of the lin of
nodes is through the recovery site wldch is reached six r~onths
later If the same magnitude of velocity were used for tb5s lobbing
shot as is us ed for a zoecoverable interplanetary spalte prob~ the
vehicle would reach the maximum distance of 15 million m llt~s from
1 _
UNCLASSIFIED
-EARTH AT LOB RECOVERY
I
LAUNCH
FIG 1 A lOSSING DEEP SPACE PROSE
UNCLASSI FlED
middot--- _ ---- middotmiddotmiddot- middotmiddotmiddot -shy _____ -----middot-4__lt4 bullbull- bull bullbullbull bull 4 -middotmiddot
SECRET earth The advantage of such a test orbit ia that 1ts short range
allows a cons1derable amount of data on vehicle performance to
be transmitted back to earth Further the use o a mrectio nal
antenna would not be required thus a breakdown in the attitude
control system of the vehu~le could be diagnosed by telemetry
If such a breakdown occurred at the far greater ranges of an
interplanetary probe it might not be diagnosed inasmuch as the
communications channel depends upon the gain oi the dir~ectlonal
antenna pointed at earth (U)
3 Development of additional deep space i racking
stat1ons The precise orbit deternUnation required for recovershy --middot able middotvehicles will result in the need for additional sophisticated
optical and electronic trackmg facilit1es in the USSR (U)
4 Structural heattng Many problems exist concerning
heatlng of snperorbital re-egttly vPhicle a manit ~ing of tlois
field car ieid ~_ om~ -~gtt ~s to Soviet plan11 for recoverable
planetary missions (U)
S For a true interplanetary round tr~p - ~Ulth as the
example oi the earth to Venus surface to earth surface bull a
t~remendouli ma9 s ratio is required opound chemical prrJpellants In
fact with a respectable speciic impulse of 310 secoud2 and a
3
SECRamiddot
~middot-middot-middot- --- ----middot - - ~ - -- ----middot -~ ------middot middot---middot------- -- - ~---middotmiddot-- - - -
SECTION ll
RECOVERY FROM INTERPLANETARY ORBITS
A Introduction
ln any planetary recovery program there are three bas1c
catego1middotie11 of recovery capsules In order of increasing ~ize
weight and complexity they are
o the instrument capsule
the biocapsule
Q the astronaut capsule (U)
The primary reasons for recovering instrumented probes __
include (l) to determine the effect of the space environment on
space-borne equipment (2) to attempt to simplify the equipment
reduce its complexity and hence improve its reliability and (3)
to develop recovery techniques for the benefit of future orbital
glide programs The scientific datg collected in lthe vicinity of
the target plmet will normally have been telemetered ba~k to
earth however a close review of tha actual pack ~glaquo vbullill enhance
the value of the collected information Future exp~imeots will
permit the development of biosatellites with the ass ranee of
regaining the specimens for proper evalu tioo of r~ middot middot~ts
FurthPr a weU-designed space capsule with a low Crmiddotlt may
5
- -- -middotmiddot- middotmiddot - middot ---- middot ~middotmiddotmiddot --middot-middotmiddot middot~middot- middot middot middotmiddotmiddot--middotmiddotmiddotmiddot --~---middot-middot-~----middotmiddotmiddotmiddot------~ middot- middotmiddotmiddot -middotmiddot~ middotmiddot--middotmiddotmiddotmiddot
become for the astronaut what the parachute is to the aviator shy
a chance for survival in case oi failure of the main vehicle Such
a human middot-carryng biocapaule would have to be equipped with
stabilizers jet and aerodynamic to prevent rotation and
tuInbling (U)
B Ballistic Vehicles
Our discussion will be limited to the recovery of pulely ballistic
interplanetary vehicles inasmuch as that wi1l most probably be the
design of all initial vehicles in a space recovery program The
sphere is the present prototype of a ballistic space capsule which -
can be used to advantage for recoverable planetary missions Of
course every syn1metric body at zero angle of attack is also a
nonlifting (ie ballistic) body and could be utilized for the flight -
Fer a sphere the drag coefficient atays close to unity most of the
time and if i middot~ loses litte middotJeight due tn blai-n t gtalhsti-
coeC bull _ient __- bull ~emuna essentially constant (U)CnA
The tleajectory which a typical superorbital ploneuy) ballistic
-e-entry vehicle follows is defined by
Qgt initial re-entry velocity Vi
Ill initial re-entry angle Y
o ballistic coefficient of vehicle (-c2)
middotmiddot - ~middot middot middot middot ~
- -middot-~- bull middot----- ----middot---- - - middot - _- ~--------- ~ --- -T------ - --middot--middot~---- - ___
~ bull ltll bull
-- middot - - bullbull --- middotmiddotmiddotmiddotmiddot _ middot---middot bull- - - _J_ __ -middot
Most re-entry vehicle trajectories are treated as a two-body problem
1nvolvins a central forre 1eld with the assumption of a nonr-otat ing
atmosphere and 7ero thrust S tarting with a ltnown initi al velocity
altitude and angle between the velocity vector and the local horishy
pounde ntal trajec tory parameters dete r mined are velocity alti tude
Ugbt path angle t angential acceleration rate of altitude change and
the geocentric angle - all as unctions of the independent variable i time (see Roeences 13 and 15) Aa can be seen these var iables
wtllllrovide an infinite number of re-entry trajectQries until the
actual vehi cle and mission parame~ere are described As aI r I
1 r
practicd matter re-entry anatee will probably be kept under -10deg
W1th initial velocities on the order of 35000 to 430CO Ct sec (U) middotshyI C Re-Entry CorridorI i Well known is the fact thegtt the re-entry angl o determination is I ~ J quite critical U er~ry is oo -hllow the v~~icle i 1t~htlbulltJ
pierce tht ITIsple~ ~bullbull 1 continue out into space or illto a
geocentric orb1t) on the other hand a too-large entry a ngle yields
heating and structural (deceleration) problems wlllch could adver sely
affect the v$bicle Thi~ aivea rise to the concept of the re-entry
corridor which is defined by an undershoot and overanoot boundary
The corr~dor width w is given a11 the diatance betwcaen the conic
per iaecs of the two boundarieu (ice Fig Z) As h app-nt ro1n
--
- ~-- middot- - middotmiddot middotmiddot--middot middotmiddotmiddotmiddotmiddotmiddot-- -----middot -- ----- -middotmiddot- -middot- _______ ___ _____-------middot- -middot- middot-middot- ---middotmiddot
UNCLASSIFIED
VEHICLE
middot middot
CONiCS
FIG Z LANDING CORRIDOR WIDTH
UNCLASSIFIED 8
_ - - middot middot- -- -~middotmiddot __ _ _ _~ middot middot middot _~-middot __ _-- ~ middotmiddotmiddotmiddotmiddotshy_
I
I l
l -1
f I
r ~-i
the preceltHng discussion the Wldth o ( the corridor w lll be a
unction o entry veloclty entzy angle and ballistic cocliicient
(Liltdrag ratios and modulation metbcxs al so influence w for
nonballistic boche=) Consequently for a g~ven velucle and entry
veloc1ty Lhe corridor may be represented by a range of acceptshy
able entry angles Conversely if the range o acceptable eotry
angles as known the corndor width is determined by calculating
the Keplenan perigees and measuring the dHeren c e between
peri gee alti tude- Corridor width as depoundmed by either w 01 Y
may thereioce be used to s t ipulate the maximum tolerable errors -for a guidance syatem U)
D Space Vehi cl Veloc i tiea
The veloci ti es assoc iated with space miesions are
circular
ell ipse bull
parabolic
hyperbolic
where K famp the gravitattonal parameter a charact eamiddot lc constant
16 3 of the attract iog body M (or earth it io 140752 X ) t I e ecZ)
a nd r 1s th e radial distance from the attrac ti ng focur_ All e arh 1
__ _ _____ _~ middot _ --middotmiddot~-- ~-
satelhtes possess either circula1middot 01 elliptical velocities In a
parabolic orbit the vehicle 1s entire kinetic energy is used up in
overcoming the central bodys entire potential energy between the
in9tantaneous distance and infinity The vehicle therefore has a
velocity of 0 at infinity -that is after escape In a hyperbolic
orb1t the vehicle has more kinetic energy than necessary for
overconung the gravitational potential opound the central body Thereshy
fore even after escape from the body the vehicle has a finite
remaining velocity which is used to change its orbital energy with
respect to the central force field of the middotnext higher order bull namely
the solar field (U
E Re-Entry Maneuvers
The maneuvers that are required to convert the ~yperbolic
approach orbit which develops as the vehicle begins to respond to
the influence o the gravitational filld of i~s ds~natim to an crbit
which leads to 11afe penetl ~middotion of the plbullll~tary atmosphere will _-
now be discussed (see Fig 3) The criteria for a eatisfactory
landing trajectory include the concept of a landing corridor described
above Sale landing paths are correlated with the configuration of
the spacecraft and with the altitude of the Keplerian perigees for
the approach trajectory This is the perigee which would occur if
I the approach trajectory were not perturbed by the effects of
10
- middotshy
--
I
l-- ___ ~-~middot--~----~~--c- ~ ---~ --=-middot~---~--~------middot--- middot middot ~ -- -~-~--~ -~~~ ----- --~~- ~ middot-_
______ _ --- -middot--middot- ---middot- middotmiddot-middotmiddot ---middotmiddot__--- middotmiddot - middot
UNCLASS IFI EO
-middot middotmiddotshy
bull
I i ~
-F~G 3 APPROACH middotANO ltRE-ENTRY TRAJECTORY
UNCLASSIF1EO
l J
-shyltmiddot
~ - - - - - -
~-tA~ - middot middotmiddot ~
~j
~ middot----- shy
- -- -middotmiddot - ~ I bull
- - bull -~ bull 1 I gt bull 0 bull bull o 9
- ---middot middotmiddotmiddot- -middot -middot - - ----middot--middot--- ____ -----middot ___________ __ -----~
I
-~
atmospheric drag Using thiamp correlation the control of the
spacecraft to place it in a landing path will be accomplished 1f it
1s COttrolled in such a way as to _place its Keplerian perigee
wtthin a dea1gnated landing corridor This is accomplished by
maneuvers which modiy the approach trajectory until the orbit
relations which may be measured indicate a value of perigee
_ radius rp and velocity vpbull which are within the indicated
landing corridor It is envisioned that such a 1middoteturn problem will
be accomplished by the application of corrections (coarse and
iine) to the return trajectory as follows
-shy1 First corrections are applied at a point sufficiently
disant to assure_that the trajectory will close with the earth such
as to allow fine corrections at a later time This first correction
i rather simple in application and for middotbest results it will be
i J
pe rormed at the greatEgtst pc sible distn shye h om earth in ce bull bullro
conserve fuel Th~gt -1istane iF hmiddottuted oy the accuracy with which 1 Lhe correction can be computed and applied U)
2 The liecond correction adjusts the approach trajeuroctory
c3usmg it to pass through the narrow landing corridor Thi6
corrlction is applied fa1rly close to earth when precision meas1bullreshy
menta of the trajectory are feasible Without the first correction
~ 12 i
- bullbull-bull--bullbullbull bullmiddot-~-- middot-Wbullbull bull _ oO
excessive p r opulsion energy might be required to perforrn the
second correction (t1)
3 The third correction is roquired to convert the approach
orbit f rom one which has 1ts perigee in the chosen landing corridor
to one whleh aetuaUy re-enteu the at moephere and i s recover ed
This will normally be accomplished by retrorocket deceleration
but in some caees an atmospheric - induced d rag could be ued (U)
The accuracy o the guidance r eq uired or landing control is
thoroughly r Pvie wed in a NASA r eport by Chapman (Reference )
The consequences of an inaccurate solution to the re-entry homing
problem are considered to be intolerable therefore the uae o shyan opegt loop solution i e r ejectOltl in favor ol a closed loop guidance
bullIaystcm In the latter eystem fliaht condltionbull are conllauauely I
bulljmonitored and correctioxu applied a10 needed thie syatem r equires__ middot
an accur ate predicllon syatem on bord to orpoundt nons c f
the vehicle Correctionbull may be i1tror 1d through applieatlon o
continuoua thrust or t~ough impuleee ~t aelecteci inteJvals (U)
F Re -Eotry Guidance System
A postulated interplAnetary homing re-entry guidance ~chenu
usmg on-board componclts i1 dcpcted in Fig 4 Meaauremente
of ranae r range rate l and the rate opound change of the Une ol
13
1
TRAJECTORY COMPUTER
middotp ~shyK II t ltmiddot )
I 1
CO~TROLLER
V a in ltjJ
UNCL ASSI FIED
STELLAR TRACKING SYSTEM
tJ GYRO- I NERTIAL r-shy =-1 ~ REFERENCE
1 _
ampVACTUAL
A T TIT UOE CONTROL OF
PITCH AXIS ROLL AXIS
AV rshy--shy- -0
11---shy - g
MPNEUVER PJltOPULSION
FIG 4 ON- BOARD LANDING GUIDANCE SYSTEM FOR INTERPLANETARY VEHICLE
UNCLASSIFIED
- ~ __shy- -----middot ---middot--middot~middot-middotmiddot shy middot ---middotmiddot----shy-shy-middot~-----shy
~
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
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I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
bullbull
~middot-~-=--bullmiddot middot---~middot I bull _ -bullmiddot -~~ -middot1gt_bull_~~-- rmiddot--middot~-~---~--7-~-~~-~--bull middot~-- middot- ~ middot ltII middot
_~middot middot middot middotmiddotmiddotmiddot middot middot middotmiddot- -middot- _ --~ middotmiddot--middotmiddotmiddot middot~ middot middot ___
FOREIGN T ECHNOLOCY REPORT
AFMDC-TR-63-5
(Title Unc lassipoundied) lNTE RPLANETAR Y RE-ENTRY MECHANICS AND
ASSOCIATED RECOVERY RANGE COMMAND AND CONTROL APPLICATIONS
October 1963
Tasks 6 18222 6182(78)
Prepared lgty
Captain William J Barlow Mr Michael E Cason Jr
Th1s 1s a Foreign Technology document prepared and published by AFMDC or use primarily within AFSC It has net been coordinated within AFSC o r the Office o the ACSlntelligence Headquarters US A F and does not -ecessarily rltgtpresent an greed Al~ ForC O posit ion
DEPUTY FOR FOREIGN TECHNOLOGY AlR FORCE MISSIJE DEVELOPMENT c N i iiR
AIR FORCE SYSTEMS COMMAND HOLLOMAN AIR FORCE BASE NEW MEXl-0
AFMDC 63-5655SECRET (This page is unclassified)
-middot-~ middot- -middot-middot~--middot~~ 0 l bull
-
--
- ----- middotmiddotmiddotshy middotmiddotmiddot-middotmiddot shy - shy middot4-middot-middot-~- shy --- middot - shy --shy -- -middot~middot
5poundCREi
(U PREFACE
The inlormation contained in thgts Technical Report has been
prepared primanly for the use of AFSC pe r-sonnel cnQaged in th~
study opound Sovict cpace technology This contribution emphasizebull
11o bulltulated planetary re - ettry and land area recovery m echanics
and will be o intereampt to those atgtalyots c oncerned wlth future
Soviet p lane tary space technoloC)bull ~
(U) PUBLICATION REVIEW
Thia Foreign Techoology document has been reviewed and is
appovecl for difltribution within the Air )lor Syu~erlamp rbullnbull~~d (U)
FOR THE COMMANDER
~~ L t Col USAF Deputy for Foreign Technology
SECRET AFMlgtC 63 -5655
TABLE OF CONTENTS
Page
Preface
Summary iii
SECTION Indicators of a Recoverable Satellite Program bull bull bull bull bull bull bull bull bull lI middot SECTION ll Recovery from Interplanetary Orbits s middotl
middot middoti SECTION lll P lanetary Land Recovery Range 19
SECTION 1V Planetary Recovery Range Command and Control bullbull 24
Appendix 1 Glossary of Terms 31 -5ibliography bull 33
Distribution bull JS
i
LIST OF ILLUSTRATIONSmiddot l
i
Figure A Lobbing De~p Space Probe 2~
Figure 2 Landing Cor~i-or Widtt 8i
Figure 3 Approach and Re-Entry Trajectory 11~
Figure 4 On-Board Landing Guidance Systemmiddotior Interplanetary Vehicle 1lt
Figure 5 Optimum Planetary Recovery Ar~aamp 22 middot
Figure 6 Recovery Range Command and Control Netwcrk 2amp
Figure 7 Missio~ Control Network bull bull bull bull bull bull lO
Table 1 Unit Error Values along ampn Earth Approach Trajectory bull bull bull bull bull bull bull bull 17
ii
~ bull bullbull middotmiddot bullbull middot ~ ----- _ -middotmiddot~Lmiddot j_c middot middot - -
~- - - ~ ~ ~-
__- -- - middot - - --middotmiddotmiddotmiddotmiddotmiddot middotmiddot-middotmiddotmiddot-middot--middotmiddot-- _-
(U) SUMMARY
Purpose
This Technical Report was prepared in accordance with
requirements established by the Foreign Technology Division in i I Tasks 6 182(Z2l (page 28) Planetary Exploration Sy11tem PES)l
Command and Control Application$ at Recovery Range and 618278)
(page 100) Planetary Exploration System PES) Land uea Recovery
Range of the Soviet Planotary E xploration Program TOPS (51
Concluaiona - a Recoverable scientific planetry space miseionamp are
believed to be included in future Soviet pl anning
b Recoverrble planetary apace roisalon pTogramming ia
tied directly to state -of - tlle-art advaJce in the fields of inertial
guidance equiptn~lt tracking techJology power ellui pment et-
c Oplmum lamcl windows for p lanetary apace veUcles
restr1ct and minlmi~e test conditions for advanced technological
concepts
d Because opound the sophistication of these miampBiOnB and the
eaUmated bullgtze and relative inaccuracies of prese1t Sbullwiet 6paceshy
craft guidance control syst~mamp it 1s not ielt ~h2-t gt ucil
recovery will be attempted by the Soviets prior to 1972
AFMDC 63-5655SECRET
middotmiddotmiddotmiddot middot --middot --~-~ middot-middotmiddot--middotmiddotmiddotmiddot _
e Only meager evidence exists which would suggest that the
Soviets intend to expand or otherwise improve their deep space
tracking capability evidently being content for the present middotilth
the Crimean facility _l8f
Background High1ights
A comprehensive review of both US and Soviet literature
indicates that recoverable planetary- probes are programmed for
futuro scientific missions The dates involved however will be
dependent on the state-of-the-art advances in such critical areas
as inertial guidaIce tracking systems power supply systems -middot electric propulsion etc Ul
A brtef look at the-8eeP space experiments thus far conducted
by both co~ntriee gives some insight into the complel mission
requirements Problems encountered by the Soviet3 in their deep
space nlissions -ave ~ndomiddot~tedly delayer any time schedult middot~~ich
gtnay have been plaed r 1middote-obull erable planetary misEgt ions Recent
proposals in US technology suggests a 1972-75 time scheduling
for a recoverable planetary vehicle ir this country Th~r tirre
pe_riod however is extremely flexible and again is dependent
upon state-opound~the-art advancements (U)
Because the US does not have a recoverable planetlaquoty vehicle
middot on the drawing board at this time and no information exists il1 the
iV
AFMDC 63-SbSSSECRET
__ - _____ ~middot-middot _____ ----------middotmiddotmiddotmiddot-middot-middot
SECRET
area opound Soviet recoverabl~ planetary missions tide report deals
prilnarily with advanced technological theory supported by current
Soviet recovery mechanlcs (81
Dioeussion
The first Soviet attempt to inject a vehicle into a deep space
trajectory occurred in 1960 On 10 and H October 1960 two illbull
f ated Mars probes were laun ehed from TTMTR These vehicles
080 the Category A ICBM for icitial boost and ~ new third stage
or injection into an earth-orbit This new etage was previously
uaobaervcd and haG a thrust oi --65 000 pounds The tint successbull
ful light opound this sy4tem was on 4 February 1961 however a fourth --middot otae used to inject the payload from a parking orbit into a Venus
tra~ectory apparently ailed on that date A second Venus prbbe
attempt on lZ February l961 did achieve a Venutt ny-by indicatios
ltbat all thc strglttamp f~-Llcti ned aOtisf~ctorHy however tbull ~mmbullmi ~ caUcms llrk laili_ Ttitgt ~_ 1peca probe progran~ higt ltonQngtgtCci
in A-uguat and Septernhltt 1962 (3 Venua fai1ure11)bull and October and
November 196~ (Z Mar~ failuru and I succeuful Maa probgt
Tbampre has been no intelligence evidence or official Soviet announce~
ment to indicate that the USSR had any program to launch n recoverable
planetary probe Indaed the engineerins problems o irttrplaabulletary
navigation attitude control communications r e bull enhmiddoty att
AFMDC 63 - 5655SEE RET
- ~
i I i middotf j i bull
- ---- middotmiddot middot ~ middot _ middot----middotmiddot- --middotshy~ middotmiddot middotmiddotmiddot- ~middot----~ shy
SECRE T
reco very a r e much more complex for s uch a planetary mission
than for near-earth or cislWlar miosions any Soviet prog r am to
accompli sh such a shot would have to be accompamed by a
tremendous sophistication of thei r astro -inertial guidance and
spacecraft control system Such self-contained systems are
necessary for a precisely controtld fly -by opound another planet and
for a well-controUed return to ear th (81
-
Vi
AFMDC 63 - 5655SECRET
middot_ lt bullmiddot 11 - - -~_ - gt middot- bullbull middot~
middot -- ~ bull -- ~ middot- bull bull - bull ( bull bull bull 4 bull bull bull bull bull~
____ -middotmiddotmiddot ~ --middotmiddot--middot ----- _ - _
SECTION
INDICATORS OF A RECOVERABLE SATELLITE PROGRAM
freliminary to the launch of an actual recoverable planetary
vehicle will be tests designed to prove the reliability and poundeasishy
bility o equipment for such missions Indicators which would
reflect that the Soviets are pursuing such a program include
I1 Boosted re-entry ballistic missile firings Such
test$ would aubject components and vehicles to the re-entry ~~locitiea anticipated for interplanetary orbits - on the order of
35000-43000 ft aec U) z Test orbit It is possible to launch a recoverable
space probe on a round trip orbit into space and back requiting
only six months (see Fig 1~ The ptbullobe is launched with a
velocity relative to the earth which is normal to the ecliptic
Thus the plane of the reaulting vehicle orh~t Inkes a smiddot ~a~ti~oi
angle with the plane of the ecliptic and the orbit has a line of
nodes through the launching site The other end of the lin of
nodes is through the recovery site wldch is reached six r~onths
later If the same magnitude of velocity were used for tb5s lobbing
shot as is us ed for a zoecoverable interplanetary spalte prob~ the
vehicle would reach the maximum distance of 15 million m llt~s from
1 _
UNCLASSIFIED
-EARTH AT LOB RECOVERY
I
LAUNCH
FIG 1 A lOSSING DEEP SPACE PROSE
UNCLASSI FlED
middot--- _ ---- middotmiddotmiddot- middotmiddotmiddot -shy _____ -----middot-4__lt4 bullbull- bull bullbullbull bull 4 -middotmiddot
SECRET earth The advantage of such a test orbit ia that 1ts short range
allows a cons1derable amount of data on vehicle performance to
be transmitted back to earth Further the use o a mrectio nal
antenna would not be required thus a breakdown in the attitude
control system of the vehu~le could be diagnosed by telemetry
If such a breakdown occurred at the far greater ranges of an
interplanetary probe it might not be diagnosed inasmuch as the
communications channel depends upon the gain oi the dir~ectlonal
antenna pointed at earth (U)
3 Development of additional deep space i racking
stat1ons The precise orbit deternUnation required for recovershy --middot able middotvehicles will result in the need for additional sophisticated
optical and electronic trackmg facilit1es in the USSR (U)
4 Structural heattng Many problems exist concerning
heatlng of snperorbital re-egttly vPhicle a manit ~ing of tlois
field car ieid ~_ om~ -~gtt ~s to Soviet plan11 for recoverable
planetary missions (U)
S For a true interplanetary round tr~p - ~Ulth as the
example oi the earth to Venus surface to earth surface bull a
t~remendouli ma9 s ratio is required opound chemical prrJpellants In
fact with a respectable speciic impulse of 310 secoud2 and a
3
SECRamiddot
~middot-middot-middot- --- ----middot - - ~ - -- ----middot -~ ------middot middot---middot------- -- - ~---middotmiddot-- - - -
SECTION ll
RECOVERY FROM INTERPLANETARY ORBITS
A Introduction
ln any planetary recovery program there are three bas1c
catego1middotie11 of recovery capsules In order of increasing ~ize
weight and complexity they are
o the instrument capsule
the biocapsule
Q the astronaut capsule (U)
The primary reasons for recovering instrumented probes __
include (l) to determine the effect of the space environment on
space-borne equipment (2) to attempt to simplify the equipment
reduce its complexity and hence improve its reliability and (3)
to develop recovery techniques for the benefit of future orbital
glide programs The scientific datg collected in lthe vicinity of
the target plmet will normally have been telemetered ba~k to
earth however a close review of tha actual pack ~glaquo vbullill enhance
the value of the collected information Future exp~imeots will
permit the development of biosatellites with the ass ranee of
regaining the specimens for proper evalu tioo of r~ middot middot~ts
FurthPr a weU-designed space capsule with a low Crmiddotlt may
5
- -- -middotmiddot- middotmiddot - middot ---- middot ~middotmiddotmiddot --middot-middotmiddot middot~middot- middot middot middotmiddotmiddot--middotmiddotmiddotmiddot --~---middot-middot-~----middotmiddotmiddotmiddot------~ middot- middotmiddotmiddot -middotmiddot~ middotmiddot--middotmiddotmiddotmiddot
become for the astronaut what the parachute is to the aviator shy
a chance for survival in case oi failure of the main vehicle Such
a human middot-carryng biocapaule would have to be equipped with
stabilizers jet and aerodynamic to prevent rotation and
tuInbling (U)
B Ballistic Vehicles
Our discussion will be limited to the recovery of pulely ballistic
interplanetary vehicles inasmuch as that wi1l most probably be the
design of all initial vehicles in a space recovery program The
sphere is the present prototype of a ballistic space capsule which -
can be used to advantage for recoverable planetary missions Of
course every syn1metric body at zero angle of attack is also a
nonlifting (ie ballistic) body and could be utilized for the flight -
Fer a sphere the drag coefficient atays close to unity most of the
time and if i middot~ loses litte middotJeight due tn blai-n t gtalhsti-
coeC bull _ient __- bull ~emuna essentially constant (U)CnA
The tleajectory which a typical superorbital ploneuy) ballistic
-e-entry vehicle follows is defined by
Qgt initial re-entry velocity Vi
Ill initial re-entry angle Y
o ballistic coefficient of vehicle (-c2)
middotmiddot - ~middot middot middot middot ~
- -middot-~- bull middot----- ----middot---- - - middot - _- ~--------- ~ --- -T------ - --middot--middot~---- - ___
~ bull ltll bull
-- middot - - bullbull --- middotmiddotmiddotmiddotmiddot _ middot---middot bull- - - _J_ __ -middot
Most re-entry vehicle trajectories are treated as a two-body problem
1nvolvins a central forre 1eld with the assumption of a nonr-otat ing
atmosphere and 7ero thrust S tarting with a ltnown initi al velocity
altitude and angle between the velocity vector and the local horishy
pounde ntal trajec tory parameters dete r mined are velocity alti tude
Ugbt path angle t angential acceleration rate of altitude change and
the geocentric angle - all as unctions of the independent variable i time (see Roeences 13 and 15) Aa can be seen these var iables
wtllllrovide an infinite number of re-entry trajectQries until the
actual vehi cle and mission parame~ere are described As aI r I
1 r
practicd matter re-entry anatee will probably be kept under -10deg
W1th initial velocities on the order of 35000 to 430CO Ct sec (U) middotshyI C Re-Entry CorridorI i Well known is the fact thegtt the re-entry angl o determination is I ~ J quite critical U er~ry is oo -hllow the v~~icle i 1t~htlbulltJ
pierce tht ITIsple~ ~bullbull 1 continue out into space or illto a
geocentric orb1t) on the other hand a too-large entry a ngle yields
heating and structural (deceleration) problems wlllch could adver sely
affect the v$bicle Thi~ aivea rise to the concept of the re-entry
corridor which is defined by an undershoot and overanoot boundary
The corr~dor width w is given a11 the diatance betwcaen the conic
per iaecs of the two boundarieu (ice Fig Z) As h app-nt ro1n
--
- ~-- middot- - middotmiddot middotmiddot--middot middotmiddotmiddotmiddotmiddotmiddot-- -----middot -- ----- -middotmiddot- -middot- _______ ___ _____-------middot- -middot- middot-middot- ---middotmiddot
UNCLASSIFIED
VEHICLE
middot middot
CONiCS
FIG Z LANDING CORRIDOR WIDTH
UNCLASSIFIED 8
_ - - middot middot- -- -~middotmiddot __ _ _ _~ middot middot middot _~-middot __ _-- ~ middotmiddotmiddotmiddotmiddotshy_
I
I l
l -1
f I
r ~-i
the preceltHng discussion the Wldth o ( the corridor w lll be a
unction o entry veloclty entzy angle and ballistic cocliicient
(Liltdrag ratios and modulation metbcxs al so influence w for
nonballistic boche=) Consequently for a g~ven velucle and entry
veloc1ty Lhe corridor may be represented by a range of acceptshy
able entry angles Conversely if the range o acceptable eotry
angles as known the corndor width is determined by calculating
the Keplenan perigees and measuring the dHeren c e between
peri gee alti tude- Corridor width as depoundmed by either w 01 Y
may thereioce be used to s t ipulate the maximum tolerable errors -for a guidance syatem U)
D Space Vehi cl Veloc i tiea
The veloci ti es assoc iated with space miesions are
circular
ell ipse bull
parabolic
hyperbolic
where K famp the gravitattonal parameter a charact eamiddot lc constant
16 3 of the attract iog body M (or earth it io 140752 X ) t I e ecZ)
a nd r 1s th e radial distance from the attrac ti ng focur_ All e arh 1
__ _ _____ _~ middot _ --middotmiddot~-- ~-
satelhtes possess either circula1middot 01 elliptical velocities In a
parabolic orbit the vehicle 1s entire kinetic energy is used up in
overcoming the central bodys entire potential energy between the
in9tantaneous distance and infinity The vehicle therefore has a
velocity of 0 at infinity -that is after escape In a hyperbolic
orb1t the vehicle has more kinetic energy than necessary for
overconung the gravitational potential opound the central body Thereshy
fore even after escape from the body the vehicle has a finite
remaining velocity which is used to change its orbital energy with
respect to the central force field of the middotnext higher order bull namely
the solar field (U
E Re-Entry Maneuvers
The maneuvers that are required to convert the ~yperbolic
approach orbit which develops as the vehicle begins to respond to
the influence o the gravitational filld of i~s ds~natim to an crbit
which leads to 11afe penetl ~middotion of the plbullll~tary atmosphere will _-
now be discussed (see Fig 3) The criteria for a eatisfactory
landing trajectory include the concept of a landing corridor described
above Sale landing paths are correlated with the configuration of
the spacecraft and with the altitude of the Keplerian perigees for
the approach trajectory This is the perigee which would occur if
I the approach trajectory were not perturbed by the effects of
10
- middotshy
--
I
l-- ___ ~-~middot--~----~~--c- ~ ---~ --=-middot~---~--~------middot--- middot middot ~ -- -~-~--~ -~~~ ----- --~~- ~ middot-_
______ _ --- -middot--middot- ---middot- middotmiddot-middotmiddot ---middotmiddot__--- middotmiddot - middot
UNCLASS IFI EO
-middot middotmiddotshy
bull
I i ~
-F~G 3 APPROACH middotANO ltRE-ENTRY TRAJECTORY
UNCLASSIF1EO
l J
-shyltmiddot
~ - - - - - -
~-tA~ - middot middotmiddot ~
~j
~ middot----- shy
- -- -middotmiddot - ~ I bull
- - bull -~ bull 1 I gt bull 0 bull bull o 9
- ---middot middotmiddotmiddot- -middot -middot - - ----middot--middot--- ____ -----middot ___________ __ -----~
I
-~
atmospheric drag Using thiamp correlation the control of the
spacecraft to place it in a landing path will be accomplished 1f it
1s COttrolled in such a way as to _place its Keplerian perigee
wtthin a dea1gnated landing corridor This is accomplished by
maneuvers which modiy the approach trajectory until the orbit
relations which may be measured indicate a value of perigee
_ radius rp and velocity vpbull which are within the indicated
landing corridor It is envisioned that such a 1middoteturn problem will
be accomplished by the application of corrections (coarse and
iine) to the return trajectory as follows
-shy1 First corrections are applied at a point sufficiently
disant to assure_that the trajectory will close with the earth such
as to allow fine corrections at a later time This first correction
i rather simple in application and for middotbest results it will be
i J
pe rormed at the greatEgtst pc sible distn shye h om earth in ce bull bullro
conserve fuel Th~gt -1istane iF hmiddottuted oy the accuracy with which 1 Lhe correction can be computed and applied U)
2 The liecond correction adjusts the approach trajeuroctory
c3usmg it to pass through the narrow landing corridor Thi6
corrlction is applied fa1rly close to earth when precision meas1bullreshy
menta of the trajectory are feasible Without the first correction
~ 12 i
- bullbull-bull--bullbullbull bullmiddot-~-- middot-Wbullbull bull _ oO
excessive p r opulsion energy might be required to perforrn the
second correction (t1)
3 The third correction is roquired to convert the approach
orbit f rom one which has 1ts perigee in the chosen landing corridor
to one whleh aetuaUy re-enteu the at moephere and i s recover ed
This will normally be accomplished by retrorocket deceleration
but in some caees an atmospheric - induced d rag could be ued (U)
The accuracy o the guidance r eq uired or landing control is
thoroughly r Pvie wed in a NASA r eport by Chapman (Reference )
The consequences of an inaccurate solution to the re-entry homing
problem are considered to be intolerable therefore the uae o shyan opegt loop solution i e r ejectOltl in favor ol a closed loop guidance
bullIaystcm In the latter eystem fliaht condltionbull are conllauauely I
bulljmonitored and correctioxu applied a10 needed thie syatem r equires__ middot
an accur ate predicllon syatem on bord to orpoundt nons c f
the vehicle Correctionbull may be i1tror 1d through applieatlon o
continuoua thrust or t~ough impuleee ~t aelecteci inteJvals (U)
F Re -Eotry Guidance System
A postulated interplAnetary homing re-entry guidance ~chenu
usmg on-board componclts i1 dcpcted in Fig 4 Meaauremente
of ranae r range rate l and the rate opound change of the Une ol
13
1
TRAJECTORY COMPUTER
middotp ~shyK II t ltmiddot )
I 1
CO~TROLLER
V a in ltjJ
UNCL ASSI FIED
STELLAR TRACKING SYSTEM
tJ GYRO- I NERTIAL r-shy =-1 ~ REFERENCE
1 _
ampVACTUAL
A T TIT UOE CONTROL OF
PITCH AXIS ROLL AXIS
AV rshy--shy- -0
11---shy - g
MPNEUVER PJltOPULSION
FIG 4 ON- BOARD LANDING GUIDANCE SYSTEM FOR INTERPLANETARY VEHICLE
UNCLASSIFIED
- ~ __shy- -----middot ---middot--middot~middot-middotmiddot shy middot ---middotmiddot----shy-shy-middot~-----shy
~
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
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I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
--
- ----- middotmiddotmiddotshy middotmiddotmiddot-middotmiddot shy - shy middot4-middot-middot-~- shy --- middot - shy --shy -- -middot~middot
5poundCREi
(U PREFACE
The inlormation contained in thgts Technical Report has been
prepared primanly for the use of AFSC pe r-sonnel cnQaged in th~
study opound Sovict cpace technology This contribution emphasizebull
11o bulltulated planetary re - ettry and land area recovery m echanics
and will be o intereampt to those atgtalyots c oncerned wlth future
Soviet p lane tary space technoloC)bull ~
(U) PUBLICATION REVIEW
Thia Foreign Techoology document has been reviewed and is
appovecl for difltribution within the Air )lor Syu~erlamp rbullnbull~~d (U)
FOR THE COMMANDER
~~ L t Col USAF Deputy for Foreign Technology
SECRET AFMlgtC 63 -5655
TABLE OF CONTENTS
Page
Preface
Summary iii
SECTION Indicators of a Recoverable Satellite Program bull bull bull bull bull bull bull bull bull lI middot SECTION ll Recovery from Interplanetary Orbits s middotl
middot middoti SECTION lll P lanetary Land Recovery Range 19
SECTION 1V Planetary Recovery Range Command and Control bullbull 24
Appendix 1 Glossary of Terms 31 -5ibliography bull 33
Distribution bull JS
i
LIST OF ILLUSTRATIONSmiddot l
i
Figure A Lobbing De~p Space Probe 2~
Figure 2 Landing Cor~i-or Widtt 8i
Figure 3 Approach and Re-Entry Trajectory 11~
Figure 4 On-Board Landing Guidance Systemmiddotior Interplanetary Vehicle 1lt
Figure 5 Optimum Planetary Recovery Ar~aamp 22 middot
Figure 6 Recovery Range Command and Control Netwcrk 2amp
Figure 7 Missio~ Control Network bull bull bull bull bull bull lO
Table 1 Unit Error Values along ampn Earth Approach Trajectory bull bull bull bull bull bull bull bull 17
ii
~ bull bullbull middotmiddot bullbull middot ~ ----- _ -middotmiddot~Lmiddot j_c middot middot - -
~- - - ~ ~ ~-
__- -- - middot - - --middotmiddotmiddotmiddotmiddotmiddot middotmiddot-middotmiddotmiddot-middot--middotmiddot-- _-
(U) SUMMARY
Purpose
This Technical Report was prepared in accordance with
requirements established by the Foreign Technology Division in i I Tasks 6 182(Z2l (page 28) Planetary Exploration Sy11tem PES)l
Command and Control Application$ at Recovery Range and 618278)
(page 100) Planetary Exploration System PES) Land uea Recovery
Range of the Soviet Planotary E xploration Program TOPS (51
Concluaiona - a Recoverable scientific planetry space miseionamp are
believed to be included in future Soviet pl anning
b Recoverrble planetary apace roisalon pTogramming ia
tied directly to state -of - tlle-art advaJce in the fields of inertial
guidance equiptn~lt tracking techJology power ellui pment et-
c Oplmum lamcl windows for p lanetary apace veUcles
restr1ct and minlmi~e test conditions for advanced technological
concepts
d Because opound the sophistication of these miampBiOnB and the
eaUmated bullgtze and relative inaccuracies of prese1t Sbullwiet 6paceshy
craft guidance control syst~mamp it 1s not ielt ~h2-t gt ucil
recovery will be attempted by the Soviets prior to 1972
AFMDC 63-5655SECRET
middotmiddotmiddotmiddot middot --middot --~-~ middot-middotmiddot--middotmiddotmiddotmiddot _
e Only meager evidence exists which would suggest that the
Soviets intend to expand or otherwise improve their deep space
tracking capability evidently being content for the present middotilth
the Crimean facility _l8f
Background High1ights
A comprehensive review of both US and Soviet literature
indicates that recoverable planetary- probes are programmed for
futuro scientific missions The dates involved however will be
dependent on the state-of-the-art advances in such critical areas
as inertial guidaIce tracking systems power supply systems -middot electric propulsion etc Ul
A brtef look at the-8eeP space experiments thus far conducted
by both co~ntriee gives some insight into the complel mission
requirements Problems encountered by the Soviet3 in their deep
space nlissions -ave ~ndomiddot~tedly delayer any time schedult middot~~ich
gtnay have been plaed r 1middote-obull erable planetary misEgt ions Recent
proposals in US technology suggests a 1972-75 time scheduling
for a recoverable planetary vehicle ir this country Th~r tirre
pe_riod however is extremely flexible and again is dependent
upon state-opound~the-art advancements (U)
Because the US does not have a recoverable planetlaquoty vehicle
middot on the drawing board at this time and no information exists il1 the
iV
AFMDC 63-SbSSSECRET
__ - _____ ~middot-middot _____ ----------middotmiddotmiddotmiddot-middot-middot
SECRET
area opound Soviet recoverabl~ planetary missions tide report deals
prilnarily with advanced technological theory supported by current
Soviet recovery mechanlcs (81
Dioeussion
The first Soviet attempt to inject a vehicle into a deep space
trajectory occurred in 1960 On 10 and H October 1960 two illbull
f ated Mars probes were laun ehed from TTMTR These vehicles
080 the Category A ICBM for icitial boost and ~ new third stage
or injection into an earth-orbit This new etage was previously
uaobaervcd and haG a thrust oi --65 000 pounds The tint successbull
ful light opound this sy4tem was on 4 February 1961 however a fourth --middot otae used to inject the payload from a parking orbit into a Venus
tra~ectory apparently ailed on that date A second Venus prbbe
attempt on lZ February l961 did achieve a Venutt ny-by indicatios
ltbat all thc strglttamp f~-Llcti ned aOtisf~ctorHy however tbull ~mmbullmi ~ caUcms llrk laili_ Ttitgt ~_ 1peca probe progran~ higt ltonQngtgtCci
in A-uguat and Septernhltt 1962 (3 Venua fai1ure11)bull and October and
November 196~ (Z Mar~ failuru and I succeuful Maa probgt
Tbampre has been no intelligence evidence or official Soviet announce~
ment to indicate that the USSR had any program to launch n recoverable
planetary probe Indaed the engineerins problems o irttrplaabulletary
navigation attitude control communications r e bull enhmiddoty att
AFMDC 63 - 5655SEE RET
- ~
i I i middotf j i bull
- ---- middotmiddot middot ~ middot _ middot----middotmiddot- --middotshy~ middotmiddot middotmiddotmiddot- ~middot----~ shy
SECRE T
reco very a r e much more complex for s uch a planetary mission
than for near-earth or cislWlar miosions any Soviet prog r am to
accompli sh such a shot would have to be accompamed by a
tremendous sophistication of thei r astro -inertial guidance and
spacecraft control system Such self-contained systems are
necessary for a precisely controtld fly -by opound another planet and
for a well-controUed return to ear th (81
-
Vi
AFMDC 63 - 5655SECRET
middot_ lt bullmiddot 11 - - -~_ - gt middot- bullbull middot~
middot -- ~ bull -- ~ middot- bull bull - bull ( bull bull bull 4 bull bull bull bull bull~
____ -middotmiddotmiddot ~ --middotmiddot--middot ----- _ - _
SECTION
INDICATORS OF A RECOVERABLE SATELLITE PROGRAM
freliminary to the launch of an actual recoverable planetary
vehicle will be tests designed to prove the reliability and poundeasishy
bility o equipment for such missions Indicators which would
reflect that the Soviets are pursuing such a program include
I1 Boosted re-entry ballistic missile firings Such
test$ would aubject components and vehicles to the re-entry ~~locitiea anticipated for interplanetary orbits - on the order of
35000-43000 ft aec U) z Test orbit It is possible to launch a recoverable
space probe on a round trip orbit into space and back requiting
only six months (see Fig 1~ The ptbullobe is launched with a
velocity relative to the earth which is normal to the ecliptic
Thus the plane of the reaulting vehicle orh~t Inkes a smiddot ~a~ti~oi
angle with the plane of the ecliptic and the orbit has a line of
nodes through the launching site The other end of the lin of
nodes is through the recovery site wldch is reached six r~onths
later If the same magnitude of velocity were used for tb5s lobbing
shot as is us ed for a zoecoverable interplanetary spalte prob~ the
vehicle would reach the maximum distance of 15 million m llt~s from
1 _
UNCLASSIFIED
-EARTH AT LOB RECOVERY
I
LAUNCH
FIG 1 A lOSSING DEEP SPACE PROSE
UNCLASSI FlED
middot--- _ ---- middotmiddotmiddot- middotmiddotmiddot -shy _____ -----middot-4__lt4 bullbull- bull bullbullbull bull 4 -middotmiddot
SECRET earth The advantage of such a test orbit ia that 1ts short range
allows a cons1derable amount of data on vehicle performance to
be transmitted back to earth Further the use o a mrectio nal
antenna would not be required thus a breakdown in the attitude
control system of the vehu~le could be diagnosed by telemetry
If such a breakdown occurred at the far greater ranges of an
interplanetary probe it might not be diagnosed inasmuch as the
communications channel depends upon the gain oi the dir~ectlonal
antenna pointed at earth (U)
3 Development of additional deep space i racking
stat1ons The precise orbit deternUnation required for recovershy --middot able middotvehicles will result in the need for additional sophisticated
optical and electronic trackmg facilit1es in the USSR (U)
4 Structural heattng Many problems exist concerning
heatlng of snperorbital re-egttly vPhicle a manit ~ing of tlois
field car ieid ~_ om~ -~gtt ~s to Soviet plan11 for recoverable
planetary missions (U)
S For a true interplanetary round tr~p - ~Ulth as the
example oi the earth to Venus surface to earth surface bull a
t~remendouli ma9 s ratio is required opound chemical prrJpellants In
fact with a respectable speciic impulse of 310 secoud2 and a
3
SECRamiddot
~middot-middot-middot- --- ----middot - - ~ - -- ----middot -~ ------middot middot---middot------- -- - ~---middotmiddot-- - - -
SECTION ll
RECOVERY FROM INTERPLANETARY ORBITS
A Introduction
ln any planetary recovery program there are three bas1c
catego1middotie11 of recovery capsules In order of increasing ~ize
weight and complexity they are
o the instrument capsule
the biocapsule
Q the astronaut capsule (U)
The primary reasons for recovering instrumented probes __
include (l) to determine the effect of the space environment on
space-borne equipment (2) to attempt to simplify the equipment
reduce its complexity and hence improve its reliability and (3)
to develop recovery techniques for the benefit of future orbital
glide programs The scientific datg collected in lthe vicinity of
the target plmet will normally have been telemetered ba~k to
earth however a close review of tha actual pack ~glaquo vbullill enhance
the value of the collected information Future exp~imeots will
permit the development of biosatellites with the ass ranee of
regaining the specimens for proper evalu tioo of r~ middot middot~ts
FurthPr a weU-designed space capsule with a low Crmiddotlt may
5
- -- -middotmiddot- middotmiddot - middot ---- middot ~middotmiddotmiddot --middot-middotmiddot middot~middot- middot middot middotmiddotmiddot--middotmiddotmiddotmiddot --~---middot-middot-~----middotmiddotmiddotmiddot------~ middot- middotmiddotmiddot -middotmiddot~ middotmiddot--middotmiddotmiddotmiddot
become for the astronaut what the parachute is to the aviator shy
a chance for survival in case oi failure of the main vehicle Such
a human middot-carryng biocapaule would have to be equipped with
stabilizers jet and aerodynamic to prevent rotation and
tuInbling (U)
B Ballistic Vehicles
Our discussion will be limited to the recovery of pulely ballistic
interplanetary vehicles inasmuch as that wi1l most probably be the
design of all initial vehicles in a space recovery program The
sphere is the present prototype of a ballistic space capsule which -
can be used to advantage for recoverable planetary missions Of
course every syn1metric body at zero angle of attack is also a
nonlifting (ie ballistic) body and could be utilized for the flight -
Fer a sphere the drag coefficient atays close to unity most of the
time and if i middot~ loses litte middotJeight due tn blai-n t gtalhsti-
coeC bull _ient __- bull ~emuna essentially constant (U)CnA
The tleajectory which a typical superorbital ploneuy) ballistic
-e-entry vehicle follows is defined by
Qgt initial re-entry velocity Vi
Ill initial re-entry angle Y
o ballistic coefficient of vehicle (-c2)
middotmiddot - ~middot middot middot middot ~
- -middot-~- bull middot----- ----middot---- - - middot - _- ~--------- ~ --- -T------ - --middot--middot~---- - ___
~ bull ltll bull
-- middot - - bullbull --- middotmiddotmiddotmiddotmiddot _ middot---middot bull- - - _J_ __ -middot
Most re-entry vehicle trajectories are treated as a two-body problem
1nvolvins a central forre 1eld with the assumption of a nonr-otat ing
atmosphere and 7ero thrust S tarting with a ltnown initi al velocity
altitude and angle between the velocity vector and the local horishy
pounde ntal trajec tory parameters dete r mined are velocity alti tude
Ugbt path angle t angential acceleration rate of altitude change and
the geocentric angle - all as unctions of the independent variable i time (see Roeences 13 and 15) Aa can be seen these var iables
wtllllrovide an infinite number of re-entry trajectQries until the
actual vehi cle and mission parame~ere are described As aI r I
1 r
practicd matter re-entry anatee will probably be kept under -10deg
W1th initial velocities on the order of 35000 to 430CO Ct sec (U) middotshyI C Re-Entry CorridorI i Well known is the fact thegtt the re-entry angl o determination is I ~ J quite critical U er~ry is oo -hllow the v~~icle i 1t~htlbulltJ
pierce tht ITIsple~ ~bullbull 1 continue out into space or illto a
geocentric orb1t) on the other hand a too-large entry a ngle yields
heating and structural (deceleration) problems wlllch could adver sely
affect the v$bicle Thi~ aivea rise to the concept of the re-entry
corridor which is defined by an undershoot and overanoot boundary
The corr~dor width w is given a11 the diatance betwcaen the conic
per iaecs of the two boundarieu (ice Fig Z) As h app-nt ro1n
--
- ~-- middot- - middotmiddot middotmiddot--middot middotmiddotmiddotmiddotmiddotmiddot-- -----middot -- ----- -middotmiddot- -middot- _______ ___ _____-------middot- -middot- middot-middot- ---middotmiddot
UNCLASSIFIED
VEHICLE
middot middot
CONiCS
FIG Z LANDING CORRIDOR WIDTH
UNCLASSIFIED 8
_ - - middot middot- -- -~middotmiddot __ _ _ _~ middot middot middot _~-middot __ _-- ~ middotmiddotmiddotmiddotmiddotshy_
I
I l
l -1
f I
r ~-i
the preceltHng discussion the Wldth o ( the corridor w lll be a
unction o entry veloclty entzy angle and ballistic cocliicient
(Liltdrag ratios and modulation metbcxs al so influence w for
nonballistic boche=) Consequently for a g~ven velucle and entry
veloc1ty Lhe corridor may be represented by a range of acceptshy
able entry angles Conversely if the range o acceptable eotry
angles as known the corndor width is determined by calculating
the Keplenan perigees and measuring the dHeren c e between
peri gee alti tude- Corridor width as depoundmed by either w 01 Y
may thereioce be used to s t ipulate the maximum tolerable errors -for a guidance syatem U)
D Space Vehi cl Veloc i tiea
The veloci ti es assoc iated with space miesions are
circular
ell ipse bull
parabolic
hyperbolic
where K famp the gravitattonal parameter a charact eamiddot lc constant
16 3 of the attract iog body M (or earth it io 140752 X ) t I e ecZ)
a nd r 1s th e radial distance from the attrac ti ng focur_ All e arh 1
__ _ _____ _~ middot _ --middotmiddot~-- ~-
satelhtes possess either circula1middot 01 elliptical velocities In a
parabolic orbit the vehicle 1s entire kinetic energy is used up in
overcoming the central bodys entire potential energy between the
in9tantaneous distance and infinity The vehicle therefore has a
velocity of 0 at infinity -that is after escape In a hyperbolic
orb1t the vehicle has more kinetic energy than necessary for
overconung the gravitational potential opound the central body Thereshy
fore even after escape from the body the vehicle has a finite
remaining velocity which is used to change its orbital energy with
respect to the central force field of the middotnext higher order bull namely
the solar field (U
E Re-Entry Maneuvers
The maneuvers that are required to convert the ~yperbolic
approach orbit which develops as the vehicle begins to respond to
the influence o the gravitational filld of i~s ds~natim to an crbit
which leads to 11afe penetl ~middotion of the plbullll~tary atmosphere will _-
now be discussed (see Fig 3) The criteria for a eatisfactory
landing trajectory include the concept of a landing corridor described
above Sale landing paths are correlated with the configuration of
the spacecraft and with the altitude of the Keplerian perigees for
the approach trajectory This is the perigee which would occur if
I the approach trajectory were not perturbed by the effects of
10
- middotshy
--
I
l-- ___ ~-~middot--~----~~--c- ~ ---~ --=-middot~---~--~------middot--- middot middot ~ -- -~-~--~ -~~~ ----- --~~- ~ middot-_
______ _ --- -middot--middot- ---middot- middotmiddot-middotmiddot ---middotmiddot__--- middotmiddot - middot
UNCLASS IFI EO
-middot middotmiddotshy
bull
I i ~
-F~G 3 APPROACH middotANO ltRE-ENTRY TRAJECTORY
UNCLASSIF1EO
l J
-shyltmiddot
~ - - - - - -
~-tA~ - middot middotmiddot ~
~j
~ middot----- shy
- -- -middotmiddot - ~ I bull
- - bull -~ bull 1 I gt bull 0 bull bull o 9
- ---middot middotmiddotmiddot- -middot -middot - - ----middot--middot--- ____ -----middot ___________ __ -----~
I
-~
atmospheric drag Using thiamp correlation the control of the
spacecraft to place it in a landing path will be accomplished 1f it
1s COttrolled in such a way as to _place its Keplerian perigee
wtthin a dea1gnated landing corridor This is accomplished by
maneuvers which modiy the approach trajectory until the orbit
relations which may be measured indicate a value of perigee
_ radius rp and velocity vpbull which are within the indicated
landing corridor It is envisioned that such a 1middoteturn problem will
be accomplished by the application of corrections (coarse and
iine) to the return trajectory as follows
-shy1 First corrections are applied at a point sufficiently
disant to assure_that the trajectory will close with the earth such
as to allow fine corrections at a later time This first correction
i rather simple in application and for middotbest results it will be
i J
pe rormed at the greatEgtst pc sible distn shye h om earth in ce bull bullro
conserve fuel Th~gt -1istane iF hmiddottuted oy the accuracy with which 1 Lhe correction can be computed and applied U)
2 The liecond correction adjusts the approach trajeuroctory
c3usmg it to pass through the narrow landing corridor Thi6
corrlction is applied fa1rly close to earth when precision meas1bullreshy
menta of the trajectory are feasible Without the first correction
~ 12 i
- bullbull-bull--bullbullbull bullmiddot-~-- middot-Wbullbull bull _ oO
excessive p r opulsion energy might be required to perforrn the
second correction (t1)
3 The third correction is roquired to convert the approach
orbit f rom one which has 1ts perigee in the chosen landing corridor
to one whleh aetuaUy re-enteu the at moephere and i s recover ed
This will normally be accomplished by retrorocket deceleration
but in some caees an atmospheric - induced d rag could be ued (U)
The accuracy o the guidance r eq uired or landing control is
thoroughly r Pvie wed in a NASA r eport by Chapman (Reference )
The consequences of an inaccurate solution to the re-entry homing
problem are considered to be intolerable therefore the uae o shyan opegt loop solution i e r ejectOltl in favor ol a closed loop guidance
bullIaystcm In the latter eystem fliaht condltionbull are conllauauely I
bulljmonitored and correctioxu applied a10 needed thie syatem r equires__ middot
an accur ate predicllon syatem on bord to orpoundt nons c f
the vehicle Correctionbull may be i1tror 1d through applieatlon o
continuoua thrust or t~ough impuleee ~t aelecteci inteJvals (U)
F Re -Eotry Guidance System
A postulated interplAnetary homing re-entry guidance ~chenu
usmg on-board componclts i1 dcpcted in Fig 4 Meaauremente
of ranae r range rate l and the rate opound change of the Une ol
13
1
TRAJECTORY COMPUTER
middotp ~shyK II t ltmiddot )
I 1
CO~TROLLER
V a in ltjJ
UNCL ASSI FIED
STELLAR TRACKING SYSTEM
tJ GYRO- I NERTIAL r-shy =-1 ~ REFERENCE
1 _
ampVACTUAL
A T TIT UOE CONTROL OF
PITCH AXIS ROLL AXIS
AV rshy--shy- -0
11---shy - g
MPNEUVER PJltOPULSION
FIG 4 ON- BOARD LANDING GUIDANCE SYSTEM FOR INTERPLANETARY VEHICLE
UNCLASSIFIED
- ~ __shy- -----middot ---middot--middot~middot-middotmiddot shy middot ---middotmiddot----shy-shy-middot~-----shy
~
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
TABLE OF CONTENTS
Page
Preface
Summary iii
SECTION Indicators of a Recoverable Satellite Program bull bull bull bull bull bull bull bull bull lI middot SECTION ll Recovery from Interplanetary Orbits s middotl
middot middoti SECTION lll P lanetary Land Recovery Range 19
SECTION 1V Planetary Recovery Range Command and Control bullbull 24
Appendix 1 Glossary of Terms 31 -5ibliography bull 33
Distribution bull JS
i
LIST OF ILLUSTRATIONSmiddot l
i
Figure A Lobbing De~p Space Probe 2~
Figure 2 Landing Cor~i-or Widtt 8i
Figure 3 Approach and Re-Entry Trajectory 11~
Figure 4 On-Board Landing Guidance Systemmiddotior Interplanetary Vehicle 1lt
Figure 5 Optimum Planetary Recovery Ar~aamp 22 middot
Figure 6 Recovery Range Command and Control Netwcrk 2amp
Figure 7 Missio~ Control Network bull bull bull bull bull bull lO
Table 1 Unit Error Values along ampn Earth Approach Trajectory bull bull bull bull bull bull bull bull 17
ii
~ bull bullbull middotmiddot bullbull middot ~ ----- _ -middotmiddot~Lmiddot j_c middot middot - -
~- - - ~ ~ ~-
__- -- - middot - - --middotmiddotmiddotmiddotmiddotmiddot middotmiddot-middotmiddotmiddot-middot--middotmiddot-- _-
(U) SUMMARY
Purpose
This Technical Report was prepared in accordance with
requirements established by the Foreign Technology Division in i I Tasks 6 182(Z2l (page 28) Planetary Exploration Sy11tem PES)l
Command and Control Application$ at Recovery Range and 618278)
(page 100) Planetary Exploration System PES) Land uea Recovery
Range of the Soviet Planotary E xploration Program TOPS (51
Concluaiona - a Recoverable scientific planetry space miseionamp are
believed to be included in future Soviet pl anning
b Recoverrble planetary apace roisalon pTogramming ia
tied directly to state -of - tlle-art advaJce in the fields of inertial
guidance equiptn~lt tracking techJology power ellui pment et-
c Oplmum lamcl windows for p lanetary apace veUcles
restr1ct and minlmi~e test conditions for advanced technological
concepts
d Because opound the sophistication of these miampBiOnB and the
eaUmated bullgtze and relative inaccuracies of prese1t Sbullwiet 6paceshy
craft guidance control syst~mamp it 1s not ielt ~h2-t gt ucil
recovery will be attempted by the Soviets prior to 1972
AFMDC 63-5655SECRET
middotmiddotmiddotmiddot middot --middot --~-~ middot-middotmiddot--middotmiddotmiddotmiddot _
e Only meager evidence exists which would suggest that the
Soviets intend to expand or otherwise improve their deep space
tracking capability evidently being content for the present middotilth
the Crimean facility _l8f
Background High1ights
A comprehensive review of both US and Soviet literature
indicates that recoverable planetary- probes are programmed for
futuro scientific missions The dates involved however will be
dependent on the state-of-the-art advances in such critical areas
as inertial guidaIce tracking systems power supply systems -middot electric propulsion etc Ul
A brtef look at the-8eeP space experiments thus far conducted
by both co~ntriee gives some insight into the complel mission
requirements Problems encountered by the Soviet3 in their deep
space nlissions -ave ~ndomiddot~tedly delayer any time schedult middot~~ich
gtnay have been plaed r 1middote-obull erable planetary misEgt ions Recent
proposals in US technology suggests a 1972-75 time scheduling
for a recoverable planetary vehicle ir this country Th~r tirre
pe_riod however is extremely flexible and again is dependent
upon state-opound~the-art advancements (U)
Because the US does not have a recoverable planetlaquoty vehicle
middot on the drawing board at this time and no information exists il1 the
iV
AFMDC 63-SbSSSECRET
__ - _____ ~middot-middot _____ ----------middotmiddotmiddotmiddot-middot-middot
SECRET
area opound Soviet recoverabl~ planetary missions tide report deals
prilnarily with advanced technological theory supported by current
Soviet recovery mechanlcs (81
Dioeussion
The first Soviet attempt to inject a vehicle into a deep space
trajectory occurred in 1960 On 10 and H October 1960 two illbull
f ated Mars probes were laun ehed from TTMTR These vehicles
080 the Category A ICBM for icitial boost and ~ new third stage
or injection into an earth-orbit This new etage was previously
uaobaervcd and haG a thrust oi --65 000 pounds The tint successbull
ful light opound this sy4tem was on 4 February 1961 however a fourth --middot otae used to inject the payload from a parking orbit into a Venus
tra~ectory apparently ailed on that date A second Venus prbbe
attempt on lZ February l961 did achieve a Venutt ny-by indicatios
ltbat all thc strglttamp f~-Llcti ned aOtisf~ctorHy however tbull ~mmbullmi ~ caUcms llrk laili_ Ttitgt ~_ 1peca probe progran~ higt ltonQngtgtCci
in A-uguat and Septernhltt 1962 (3 Venua fai1ure11)bull and October and
November 196~ (Z Mar~ failuru and I succeuful Maa probgt
Tbampre has been no intelligence evidence or official Soviet announce~
ment to indicate that the USSR had any program to launch n recoverable
planetary probe Indaed the engineerins problems o irttrplaabulletary
navigation attitude control communications r e bull enhmiddoty att
AFMDC 63 - 5655SEE RET
- ~
i I i middotf j i bull
- ---- middotmiddot middot ~ middot _ middot----middotmiddot- --middotshy~ middotmiddot middotmiddotmiddot- ~middot----~ shy
SECRE T
reco very a r e much more complex for s uch a planetary mission
than for near-earth or cislWlar miosions any Soviet prog r am to
accompli sh such a shot would have to be accompamed by a
tremendous sophistication of thei r astro -inertial guidance and
spacecraft control system Such self-contained systems are
necessary for a precisely controtld fly -by opound another planet and
for a well-controUed return to ear th (81
-
Vi
AFMDC 63 - 5655SECRET
middot_ lt bullmiddot 11 - - -~_ - gt middot- bullbull middot~
middot -- ~ bull -- ~ middot- bull bull - bull ( bull bull bull 4 bull bull bull bull bull~
____ -middotmiddotmiddot ~ --middotmiddot--middot ----- _ - _
SECTION
INDICATORS OF A RECOVERABLE SATELLITE PROGRAM
freliminary to the launch of an actual recoverable planetary
vehicle will be tests designed to prove the reliability and poundeasishy
bility o equipment for such missions Indicators which would
reflect that the Soviets are pursuing such a program include
I1 Boosted re-entry ballistic missile firings Such
test$ would aubject components and vehicles to the re-entry ~~locitiea anticipated for interplanetary orbits - on the order of
35000-43000 ft aec U) z Test orbit It is possible to launch a recoverable
space probe on a round trip orbit into space and back requiting
only six months (see Fig 1~ The ptbullobe is launched with a
velocity relative to the earth which is normal to the ecliptic
Thus the plane of the reaulting vehicle orh~t Inkes a smiddot ~a~ti~oi
angle with the plane of the ecliptic and the orbit has a line of
nodes through the launching site The other end of the lin of
nodes is through the recovery site wldch is reached six r~onths
later If the same magnitude of velocity were used for tb5s lobbing
shot as is us ed for a zoecoverable interplanetary spalte prob~ the
vehicle would reach the maximum distance of 15 million m llt~s from
1 _
UNCLASSIFIED
-EARTH AT LOB RECOVERY
I
LAUNCH
FIG 1 A lOSSING DEEP SPACE PROSE
UNCLASSI FlED
middot--- _ ---- middotmiddotmiddot- middotmiddotmiddot -shy _____ -----middot-4__lt4 bullbull- bull bullbullbull bull 4 -middotmiddot
SECRET earth The advantage of such a test orbit ia that 1ts short range
allows a cons1derable amount of data on vehicle performance to
be transmitted back to earth Further the use o a mrectio nal
antenna would not be required thus a breakdown in the attitude
control system of the vehu~le could be diagnosed by telemetry
If such a breakdown occurred at the far greater ranges of an
interplanetary probe it might not be diagnosed inasmuch as the
communications channel depends upon the gain oi the dir~ectlonal
antenna pointed at earth (U)
3 Development of additional deep space i racking
stat1ons The precise orbit deternUnation required for recovershy --middot able middotvehicles will result in the need for additional sophisticated
optical and electronic trackmg facilit1es in the USSR (U)
4 Structural heattng Many problems exist concerning
heatlng of snperorbital re-egttly vPhicle a manit ~ing of tlois
field car ieid ~_ om~ -~gtt ~s to Soviet plan11 for recoverable
planetary missions (U)
S For a true interplanetary round tr~p - ~Ulth as the
example oi the earth to Venus surface to earth surface bull a
t~remendouli ma9 s ratio is required opound chemical prrJpellants In
fact with a respectable speciic impulse of 310 secoud2 and a
3
SECRamiddot
~middot-middot-middot- --- ----middot - - ~ - -- ----middot -~ ------middot middot---middot------- -- - ~---middotmiddot-- - - -
SECTION ll
RECOVERY FROM INTERPLANETARY ORBITS
A Introduction
ln any planetary recovery program there are three bas1c
catego1middotie11 of recovery capsules In order of increasing ~ize
weight and complexity they are
o the instrument capsule
the biocapsule
Q the astronaut capsule (U)
The primary reasons for recovering instrumented probes __
include (l) to determine the effect of the space environment on
space-borne equipment (2) to attempt to simplify the equipment
reduce its complexity and hence improve its reliability and (3)
to develop recovery techniques for the benefit of future orbital
glide programs The scientific datg collected in lthe vicinity of
the target plmet will normally have been telemetered ba~k to
earth however a close review of tha actual pack ~glaquo vbullill enhance
the value of the collected information Future exp~imeots will
permit the development of biosatellites with the ass ranee of
regaining the specimens for proper evalu tioo of r~ middot middot~ts
FurthPr a weU-designed space capsule with a low Crmiddotlt may
5
- -- -middotmiddot- middotmiddot - middot ---- middot ~middotmiddotmiddot --middot-middotmiddot middot~middot- middot middot middotmiddotmiddot--middotmiddotmiddotmiddot --~---middot-middot-~----middotmiddotmiddotmiddot------~ middot- middotmiddotmiddot -middotmiddot~ middotmiddot--middotmiddotmiddotmiddot
become for the astronaut what the parachute is to the aviator shy
a chance for survival in case oi failure of the main vehicle Such
a human middot-carryng biocapaule would have to be equipped with
stabilizers jet and aerodynamic to prevent rotation and
tuInbling (U)
B Ballistic Vehicles
Our discussion will be limited to the recovery of pulely ballistic
interplanetary vehicles inasmuch as that wi1l most probably be the
design of all initial vehicles in a space recovery program The
sphere is the present prototype of a ballistic space capsule which -
can be used to advantage for recoverable planetary missions Of
course every syn1metric body at zero angle of attack is also a
nonlifting (ie ballistic) body and could be utilized for the flight -
Fer a sphere the drag coefficient atays close to unity most of the
time and if i middot~ loses litte middotJeight due tn blai-n t gtalhsti-
coeC bull _ient __- bull ~emuna essentially constant (U)CnA
The tleajectory which a typical superorbital ploneuy) ballistic
-e-entry vehicle follows is defined by
Qgt initial re-entry velocity Vi
Ill initial re-entry angle Y
o ballistic coefficient of vehicle (-c2)
middotmiddot - ~middot middot middot middot ~
- -middot-~- bull middot----- ----middot---- - - middot - _- ~--------- ~ --- -T------ - --middot--middot~---- - ___
~ bull ltll bull
-- middot - - bullbull --- middotmiddotmiddotmiddotmiddot _ middot---middot bull- - - _J_ __ -middot
Most re-entry vehicle trajectories are treated as a two-body problem
1nvolvins a central forre 1eld with the assumption of a nonr-otat ing
atmosphere and 7ero thrust S tarting with a ltnown initi al velocity
altitude and angle between the velocity vector and the local horishy
pounde ntal trajec tory parameters dete r mined are velocity alti tude
Ugbt path angle t angential acceleration rate of altitude change and
the geocentric angle - all as unctions of the independent variable i time (see Roeences 13 and 15) Aa can be seen these var iables
wtllllrovide an infinite number of re-entry trajectQries until the
actual vehi cle and mission parame~ere are described As aI r I
1 r
practicd matter re-entry anatee will probably be kept under -10deg
W1th initial velocities on the order of 35000 to 430CO Ct sec (U) middotshyI C Re-Entry CorridorI i Well known is the fact thegtt the re-entry angl o determination is I ~ J quite critical U er~ry is oo -hllow the v~~icle i 1t~htlbulltJ
pierce tht ITIsple~ ~bullbull 1 continue out into space or illto a
geocentric orb1t) on the other hand a too-large entry a ngle yields
heating and structural (deceleration) problems wlllch could adver sely
affect the v$bicle Thi~ aivea rise to the concept of the re-entry
corridor which is defined by an undershoot and overanoot boundary
The corr~dor width w is given a11 the diatance betwcaen the conic
per iaecs of the two boundarieu (ice Fig Z) As h app-nt ro1n
--
- ~-- middot- - middotmiddot middotmiddot--middot middotmiddotmiddotmiddotmiddotmiddot-- -----middot -- ----- -middotmiddot- -middot- _______ ___ _____-------middot- -middot- middot-middot- ---middotmiddot
UNCLASSIFIED
VEHICLE
middot middot
CONiCS
FIG Z LANDING CORRIDOR WIDTH
UNCLASSIFIED 8
_ - - middot middot- -- -~middotmiddot __ _ _ _~ middot middot middot _~-middot __ _-- ~ middotmiddotmiddotmiddotmiddotshy_
I
I l
l -1
f I
r ~-i
the preceltHng discussion the Wldth o ( the corridor w lll be a
unction o entry veloclty entzy angle and ballistic cocliicient
(Liltdrag ratios and modulation metbcxs al so influence w for
nonballistic boche=) Consequently for a g~ven velucle and entry
veloc1ty Lhe corridor may be represented by a range of acceptshy
able entry angles Conversely if the range o acceptable eotry
angles as known the corndor width is determined by calculating
the Keplenan perigees and measuring the dHeren c e between
peri gee alti tude- Corridor width as depoundmed by either w 01 Y
may thereioce be used to s t ipulate the maximum tolerable errors -for a guidance syatem U)
D Space Vehi cl Veloc i tiea
The veloci ti es assoc iated with space miesions are
circular
ell ipse bull
parabolic
hyperbolic
where K famp the gravitattonal parameter a charact eamiddot lc constant
16 3 of the attract iog body M (or earth it io 140752 X ) t I e ecZ)
a nd r 1s th e radial distance from the attrac ti ng focur_ All e arh 1
__ _ _____ _~ middot _ --middotmiddot~-- ~-
satelhtes possess either circula1middot 01 elliptical velocities In a
parabolic orbit the vehicle 1s entire kinetic energy is used up in
overcoming the central bodys entire potential energy between the
in9tantaneous distance and infinity The vehicle therefore has a
velocity of 0 at infinity -that is after escape In a hyperbolic
orb1t the vehicle has more kinetic energy than necessary for
overconung the gravitational potential opound the central body Thereshy
fore even after escape from the body the vehicle has a finite
remaining velocity which is used to change its orbital energy with
respect to the central force field of the middotnext higher order bull namely
the solar field (U
E Re-Entry Maneuvers
The maneuvers that are required to convert the ~yperbolic
approach orbit which develops as the vehicle begins to respond to
the influence o the gravitational filld of i~s ds~natim to an crbit
which leads to 11afe penetl ~middotion of the plbullll~tary atmosphere will _-
now be discussed (see Fig 3) The criteria for a eatisfactory
landing trajectory include the concept of a landing corridor described
above Sale landing paths are correlated with the configuration of
the spacecraft and with the altitude of the Keplerian perigees for
the approach trajectory This is the perigee which would occur if
I the approach trajectory were not perturbed by the effects of
10
- middotshy
--
I
l-- ___ ~-~middot--~----~~--c- ~ ---~ --=-middot~---~--~------middot--- middot middot ~ -- -~-~--~ -~~~ ----- --~~- ~ middot-_
______ _ --- -middot--middot- ---middot- middotmiddot-middotmiddot ---middotmiddot__--- middotmiddot - middot
UNCLASS IFI EO
-middot middotmiddotshy
bull
I i ~
-F~G 3 APPROACH middotANO ltRE-ENTRY TRAJECTORY
UNCLASSIF1EO
l J
-shyltmiddot
~ - - - - - -
~-tA~ - middot middotmiddot ~
~j
~ middot----- shy
- -- -middotmiddot - ~ I bull
- - bull -~ bull 1 I gt bull 0 bull bull o 9
- ---middot middotmiddotmiddot- -middot -middot - - ----middot--middot--- ____ -----middot ___________ __ -----~
I
-~
atmospheric drag Using thiamp correlation the control of the
spacecraft to place it in a landing path will be accomplished 1f it
1s COttrolled in such a way as to _place its Keplerian perigee
wtthin a dea1gnated landing corridor This is accomplished by
maneuvers which modiy the approach trajectory until the orbit
relations which may be measured indicate a value of perigee
_ radius rp and velocity vpbull which are within the indicated
landing corridor It is envisioned that such a 1middoteturn problem will
be accomplished by the application of corrections (coarse and
iine) to the return trajectory as follows
-shy1 First corrections are applied at a point sufficiently
disant to assure_that the trajectory will close with the earth such
as to allow fine corrections at a later time This first correction
i rather simple in application and for middotbest results it will be
i J
pe rormed at the greatEgtst pc sible distn shye h om earth in ce bull bullro
conserve fuel Th~gt -1istane iF hmiddottuted oy the accuracy with which 1 Lhe correction can be computed and applied U)
2 The liecond correction adjusts the approach trajeuroctory
c3usmg it to pass through the narrow landing corridor Thi6
corrlction is applied fa1rly close to earth when precision meas1bullreshy
menta of the trajectory are feasible Without the first correction
~ 12 i
- bullbull-bull--bullbullbull bullmiddot-~-- middot-Wbullbull bull _ oO
excessive p r opulsion energy might be required to perforrn the
second correction (t1)
3 The third correction is roquired to convert the approach
orbit f rom one which has 1ts perigee in the chosen landing corridor
to one whleh aetuaUy re-enteu the at moephere and i s recover ed
This will normally be accomplished by retrorocket deceleration
but in some caees an atmospheric - induced d rag could be ued (U)
The accuracy o the guidance r eq uired or landing control is
thoroughly r Pvie wed in a NASA r eport by Chapman (Reference )
The consequences of an inaccurate solution to the re-entry homing
problem are considered to be intolerable therefore the uae o shyan opegt loop solution i e r ejectOltl in favor ol a closed loop guidance
bullIaystcm In the latter eystem fliaht condltionbull are conllauauely I
bulljmonitored and correctioxu applied a10 needed thie syatem r equires__ middot
an accur ate predicllon syatem on bord to orpoundt nons c f
the vehicle Correctionbull may be i1tror 1d through applieatlon o
continuoua thrust or t~ough impuleee ~t aelecteci inteJvals (U)
F Re -Eotry Guidance System
A postulated interplAnetary homing re-entry guidance ~chenu
usmg on-board componclts i1 dcpcted in Fig 4 Meaauremente
of ranae r range rate l and the rate opound change of the Une ol
13
1
TRAJECTORY COMPUTER
middotp ~shyK II t ltmiddot )
I 1
CO~TROLLER
V a in ltjJ
UNCL ASSI FIED
STELLAR TRACKING SYSTEM
tJ GYRO- I NERTIAL r-shy =-1 ~ REFERENCE
1 _
ampVACTUAL
A T TIT UOE CONTROL OF
PITCH AXIS ROLL AXIS
AV rshy--shy- -0
11---shy - g
MPNEUVER PJltOPULSION
FIG 4 ON- BOARD LANDING GUIDANCE SYSTEM FOR INTERPLANETARY VEHICLE
UNCLASSIFIED
- ~ __shy- -----middot ---middot--middot~middot-middotmiddot shy middot ---middotmiddot----shy-shy-middot~-----shy
~
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
__- -- - middot - - --middotmiddotmiddotmiddotmiddotmiddot middotmiddot-middotmiddotmiddot-middot--middotmiddot-- _-
(U) SUMMARY
Purpose
This Technical Report was prepared in accordance with
requirements established by the Foreign Technology Division in i I Tasks 6 182(Z2l (page 28) Planetary Exploration Sy11tem PES)l
Command and Control Application$ at Recovery Range and 618278)
(page 100) Planetary Exploration System PES) Land uea Recovery
Range of the Soviet Planotary E xploration Program TOPS (51
Concluaiona - a Recoverable scientific planetry space miseionamp are
believed to be included in future Soviet pl anning
b Recoverrble planetary apace roisalon pTogramming ia
tied directly to state -of - tlle-art advaJce in the fields of inertial
guidance equiptn~lt tracking techJology power ellui pment et-
c Oplmum lamcl windows for p lanetary apace veUcles
restr1ct and minlmi~e test conditions for advanced technological
concepts
d Because opound the sophistication of these miampBiOnB and the
eaUmated bullgtze and relative inaccuracies of prese1t Sbullwiet 6paceshy
craft guidance control syst~mamp it 1s not ielt ~h2-t gt ucil
recovery will be attempted by the Soviets prior to 1972
AFMDC 63-5655SECRET
middotmiddotmiddotmiddot middot --middot --~-~ middot-middotmiddot--middotmiddotmiddotmiddot _
e Only meager evidence exists which would suggest that the
Soviets intend to expand or otherwise improve their deep space
tracking capability evidently being content for the present middotilth
the Crimean facility _l8f
Background High1ights
A comprehensive review of both US and Soviet literature
indicates that recoverable planetary- probes are programmed for
futuro scientific missions The dates involved however will be
dependent on the state-of-the-art advances in such critical areas
as inertial guidaIce tracking systems power supply systems -middot electric propulsion etc Ul
A brtef look at the-8eeP space experiments thus far conducted
by both co~ntriee gives some insight into the complel mission
requirements Problems encountered by the Soviet3 in their deep
space nlissions -ave ~ndomiddot~tedly delayer any time schedult middot~~ich
gtnay have been plaed r 1middote-obull erable planetary misEgt ions Recent
proposals in US technology suggests a 1972-75 time scheduling
for a recoverable planetary vehicle ir this country Th~r tirre
pe_riod however is extremely flexible and again is dependent
upon state-opound~the-art advancements (U)
Because the US does not have a recoverable planetlaquoty vehicle
middot on the drawing board at this time and no information exists il1 the
iV
AFMDC 63-SbSSSECRET
__ - _____ ~middot-middot _____ ----------middotmiddotmiddotmiddot-middot-middot
SECRET
area opound Soviet recoverabl~ planetary missions tide report deals
prilnarily with advanced technological theory supported by current
Soviet recovery mechanlcs (81
Dioeussion
The first Soviet attempt to inject a vehicle into a deep space
trajectory occurred in 1960 On 10 and H October 1960 two illbull
f ated Mars probes were laun ehed from TTMTR These vehicles
080 the Category A ICBM for icitial boost and ~ new third stage
or injection into an earth-orbit This new etage was previously
uaobaervcd and haG a thrust oi --65 000 pounds The tint successbull
ful light opound this sy4tem was on 4 February 1961 however a fourth --middot otae used to inject the payload from a parking orbit into a Venus
tra~ectory apparently ailed on that date A second Venus prbbe
attempt on lZ February l961 did achieve a Venutt ny-by indicatios
ltbat all thc strglttamp f~-Llcti ned aOtisf~ctorHy however tbull ~mmbullmi ~ caUcms llrk laili_ Ttitgt ~_ 1peca probe progran~ higt ltonQngtgtCci
in A-uguat and Septernhltt 1962 (3 Venua fai1ure11)bull and October and
November 196~ (Z Mar~ failuru and I succeuful Maa probgt
Tbampre has been no intelligence evidence or official Soviet announce~
ment to indicate that the USSR had any program to launch n recoverable
planetary probe Indaed the engineerins problems o irttrplaabulletary
navigation attitude control communications r e bull enhmiddoty att
AFMDC 63 - 5655SEE RET
- ~
i I i middotf j i bull
- ---- middotmiddot middot ~ middot _ middot----middotmiddot- --middotshy~ middotmiddot middotmiddotmiddot- ~middot----~ shy
SECRE T
reco very a r e much more complex for s uch a planetary mission
than for near-earth or cislWlar miosions any Soviet prog r am to
accompli sh such a shot would have to be accompamed by a
tremendous sophistication of thei r astro -inertial guidance and
spacecraft control system Such self-contained systems are
necessary for a precisely controtld fly -by opound another planet and
for a well-controUed return to ear th (81
-
Vi
AFMDC 63 - 5655SECRET
middot_ lt bullmiddot 11 - - -~_ - gt middot- bullbull middot~
middot -- ~ bull -- ~ middot- bull bull - bull ( bull bull bull 4 bull bull bull bull bull~
____ -middotmiddotmiddot ~ --middotmiddot--middot ----- _ - _
SECTION
INDICATORS OF A RECOVERABLE SATELLITE PROGRAM
freliminary to the launch of an actual recoverable planetary
vehicle will be tests designed to prove the reliability and poundeasishy
bility o equipment for such missions Indicators which would
reflect that the Soviets are pursuing such a program include
I1 Boosted re-entry ballistic missile firings Such
test$ would aubject components and vehicles to the re-entry ~~locitiea anticipated for interplanetary orbits - on the order of
35000-43000 ft aec U) z Test orbit It is possible to launch a recoverable
space probe on a round trip orbit into space and back requiting
only six months (see Fig 1~ The ptbullobe is launched with a
velocity relative to the earth which is normal to the ecliptic
Thus the plane of the reaulting vehicle orh~t Inkes a smiddot ~a~ti~oi
angle with the plane of the ecliptic and the orbit has a line of
nodes through the launching site The other end of the lin of
nodes is through the recovery site wldch is reached six r~onths
later If the same magnitude of velocity were used for tb5s lobbing
shot as is us ed for a zoecoverable interplanetary spalte prob~ the
vehicle would reach the maximum distance of 15 million m llt~s from
1 _
UNCLASSIFIED
-EARTH AT LOB RECOVERY
I
LAUNCH
FIG 1 A lOSSING DEEP SPACE PROSE
UNCLASSI FlED
middot--- _ ---- middotmiddotmiddot- middotmiddotmiddot -shy _____ -----middot-4__lt4 bullbull- bull bullbullbull bull 4 -middotmiddot
SECRET earth The advantage of such a test orbit ia that 1ts short range
allows a cons1derable amount of data on vehicle performance to
be transmitted back to earth Further the use o a mrectio nal
antenna would not be required thus a breakdown in the attitude
control system of the vehu~le could be diagnosed by telemetry
If such a breakdown occurred at the far greater ranges of an
interplanetary probe it might not be diagnosed inasmuch as the
communications channel depends upon the gain oi the dir~ectlonal
antenna pointed at earth (U)
3 Development of additional deep space i racking
stat1ons The precise orbit deternUnation required for recovershy --middot able middotvehicles will result in the need for additional sophisticated
optical and electronic trackmg facilit1es in the USSR (U)
4 Structural heattng Many problems exist concerning
heatlng of snperorbital re-egttly vPhicle a manit ~ing of tlois
field car ieid ~_ om~ -~gtt ~s to Soviet plan11 for recoverable
planetary missions (U)
S For a true interplanetary round tr~p - ~Ulth as the
example oi the earth to Venus surface to earth surface bull a
t~remendouli ma9 s ratio is required opound chemical prrJpellants In
fact with a respectable speciic impulse of 310 secoud2 and a
3
SECRamiddot
~middot-middot-middot- --- ----middot - - ~ - -- ----middot -~ ------middot middot---middot------- -- - ~---middotmiddot-- - - -
SECTION ll
RECOVERY FROM INTERPLANETARY ORBITS
A Introduction
ln any planetary recovery program there are three bas1c
catego1middotie11 of recovery capsules In order of increasing ~ize
weight and complexity they are
o the instrument capsule
the biocapsule
Q the astronaut capsule (U)
The primary reasons for recovering instrumented probes __
include (l) to determine the effect of the space environment on
space-borne equipment (2) to attempt to simplify the equipment
reduce its complexity and hence improve its reliability and (3)
to develop recovery techniques for the benefit of future orbital
glide programs The scientific datg collected in lthe vicinity of
the target plmet will normally have been telemetered ba~k to
earth however a close review of tha actual pack ~glaquo vbullill enhance
the value of the collected information Future exp~imeots will
permit the development of biosatellites with the ass ranee of
regaining the specimens for proper evalu tioo of r~ middot middot~ts
FurthPr a weU-designed space capsule with a low Crmiddotlt may
5
- -- -middotmiddot- middotmiddot - middot ---- middot ~middotmiddotmiddot --middot-middotmiddot middot~middot- middot middot middotmiddotmiddot--middotmiddotmiddotmiddot --~---middot-middot-~----middotmiddotmiddotmiddot------~ middot- middotmiddotmiddot -middotmiddot~ middotmiddot--middotmiddotmiddotmiddot
become for the astronaut what the parachute is to the aviator shy
a chance for survival in case oi failure of the main vehicle Such
a human middot-carryng biocapaule would have to be equipped with
stabilizers jet and aerodynamic to prevent rotation and
tuInbling (U)
B Ballistic Vehicles
Our discussion will be limited to the recovery of pulely ballistic
interplanetary vehicles inasmuch as that wi1l most probably be the
design of all initial vehicles in a space recovery program The
sphere is the present prototype of a ballistic space capsule which -
can be used to advantage for recoverable planetary missions Of
course every syn1metric body at zero angle of attack is also a
nonlifting (ie ballistic) body and could be utilized for the flight -
Fer a sphere the drag coefficient atays close to unity most of the
time and if i middot~ loses litte middotJeight due tn blai-n t gtalhsti-
coeC bull _ient __- bull ~emuna essentially constant (U)CnA
The tleajectory which a typical superorbital ploneuy) ballistic
-e-entry vehicle follows is defined by
Qgt initial re-entry velocity Vi
Ill initial re-entry angle Y
o ballistic coefficient of vehicle (-c2)
middotmiddot - ~middot middot middot middot ~
- -middot-~- bull middot----- ----middot---- - - middot - _- ~--------- ~ --- -T------ - --middot--middot~---- - ___
~ bull ltll bull
-- middot - - bullbull --- middotmiddotmiddotmiddotmiddot _ middot---middot bull- - - _J_ __ -middot
Most re-entry vehicle trajectories are treated as a two-body problem
1nvolvins a central forre 1eld with the assumption of a nonr-otat ing
atmosphere and 7ero thrust S tarting with a ltnown initi al velocity
altitude and angle between the velocity vector and the local horishy
pounde ntal trajec tory parameters dete r mined are velocity alti tude
Ugbt path angle t angential acceleration rate of altitude change and
the geocentric angle - all as unctions of the independent variable i time (see Roeences 13 and 15) Aa can be seen these var iables
wtllllrovide an infinite number of re-entry trajectQries until the
actual vehi cle and mission parame~ere are described As aI r I
1 r
practicd matter re-entry anatee will probably be kept under -10deg
W1th initial velocities on the order of 35000 to 430CO Ct sec (U) middotshyI C Re-Entry CorridorI i Well known is the fact thegtt the re-entry angl o determination is I ~ J quite critical U er~ry is oo -hllow the v~~icle i 1t~htlbulltJ
pierce tht ITIsple~ ~bullbull 1 continue out into space or illto a
geocentric orb1t) on the other hand a too-large entry a ngle yields
heating and structural (deceleration) problems wlllch could adver sely
affect the v$bicle Thi~ aivea rise to the concept of the re-entry
corridor which is defined by an undershoot and overanoot boundary
The corr~dor width w is given a11 the diatance betwcaen the conic
per iaecs of the two boundarieu (ice Fig Z) As h app-nt ro1n
--
- ~-- middot- - middotmiddot middotmiddot--middot middotmiddotmiddotmiddotmiddotmiddot-- -----middot -- ----- -middotmiddot- -middot- _______ ___ _____-------middot- -middot- middot-middot- ---middotmiddot
UNCLASSIFIED
VEHICLE
middot middot
CONiCS
FIG Z LANDING CORRIDOR WIDTH
UNCLASSIFIED 8
_ - - middot middot- -- -~middotmiddot __ _ _ _~ middot middot middot _~-middot __ _-- ~ middotmiddotmiddotmiddotmiddotshy_
I
I l
l -1
f I
r ~-i
the preceltHng discussion the Wldth o ( the corridor w lll be a
unction o entry veloclty entzy angle and ballistic cocliicient
(Liltdrag ratios and modulation metbcxs al so influence w for
nonballistic boche=) Consequently for a g~ven velucle and entry
veloc1ty Lhe corridor may be represented by a range of acceptshy
able entry angles Conversely if the range o acceptable eotry
angles as known the corndor width is determined by calculating
the Keplenan perigees and measuring the dHeren c e between
peri gee alti tude- Corridor width as depoundmed by either w 01 Y
may thereioce be used to s t ipulate the maximum tolerable errors -for a guidance syatem U)
D Space Vehi cl Veloc i tiea
The veloci ti es assoc iated with space miesions are
circular
ell ipse bull
parabolic
hyperbolic
where K famp the gravitattonal parameter a charact eamiddot lc constant
16 3 of the attract iog body M (or earth it io 140752 X ) t I e ecZ)
a nd r 1s th e radial distance from the attrac ti ng focur_ All e arh 1
__ _ _____ _~ middot _ --middotmiddot~-- ~-
satelhtes possess either circula1middot 01 elliptical velocities In a
parabolic orbit the vehicle 1s entire kinetic energy is used up in
overcoming the central bodys entire potential energy between the
in9tantaneous distance and infinity The vehicle therefore has a
velocity of 0 at infinity -that is after escape In a hyperbolic
orb1t the vehicle has more kinetic energy than necessary for
overconung the gravitational potential opound the central body Thereshy
fore even after escape from the body the vehicle has a finite
remaining velocity which is used to change its orbital energy with
respect to the central force field of the middotnext higher order bull namely
the solar field (U
E Re-Entry Maneuvers
The maneuvers that are required to convert the ~yperbolic
approach orbit which develops as the vehicle begins to respond to
the influence o the gravitational filld of i~s ds~natim to an crbit
which leads to 11afe penetl ~middotion of the plbullll~tary atmosphere will _-
now be discussed (see Fig 3) The criteria for a eatisfactory
landing trajectory include the concept of a landing corridor described
above Sale landing paths are correlated with the configuration of
the spacecraft and with the altitude of the Keplerian perigees for
the approach trajectory This is the perigee which would occur if
I the approach trajectory were not perturbed by the effects of
10
- middotshy
--
I
l-- ___ ~-~middot--~----~~--c- ~ ---~ --=-middot~---~--~------middot--- middot middot ~ -- -~-~--~ -~~~ ----- --~~- ~ middot-_
______ _ --- -middot--middot- ---middot- middotmiddot-middotmiddot ---middotmiddot__--- middotmiddot - middot
UNCLASS IFI EO
-middot middotmiddotshy
bull
I i ~
-F~G 3 APPROACH middotANO ltRE-ENTRY TRAJECTORY
UNCLASSIF1EO
l J
-shyltmiddot
~ - - - - - -
~-tA~ - middot middotmiddot ~
~j
~ middot----- shy
- -- -middotmiddot - ~ I bull
- - bull -~ bull 1 I gt bull 0 bull bull o 9
- ---middot middotmiddotmiddot- -middot -middot - - ----middot--middot--- ____ -----middot ___________ __ -----~
I
-~
atmospheric drag Using thiamp correlation the control of the
spacecraft to place it in a landing path will be accomplished 1f it
1s COttrolled in such a way as to _place its Keplerian perigee
wtthin a dea1gnated landing corridor This is accomplished by
maneuvers which modiy the approach trajectory until the orbit
relations which may be measured indicate a value of perigee
_ radius rp and velocity vpbull which are within the indicated
landing corridor It is envisioned that such a 1middoteturn problem will
be accomplished by the application of corrections (coarse and
iine) to the return trajectory as follows
-shy1 First corrections are applied at a point sufficiently
disant to assure_that the trajectory will close with the earth such
as to allow fine corrections at a later time This first correction
i rather simple in application and for middotbest results it will be
i J
pe rormed at the greatEgtst pc sible distn shye h om earth in ce bull bullro
conserve fuel Th~gt -1istane iF hmiddottuted oy the accuracy with which 1 Lhe correction can be computed and applied U)
2 The liecond correction adjusts the approach trajeuroctory
c3usmg it to pass through the narrow landing corridor Thi6
corrlction is applied fa1rly close to earth when precision meas1bullreshy
menta of the trajectory are feasible Without the first correction
~ 12 i
- bullbull-bull--bullbullbull bullmiddot-~-- middot-Wbullbull bull _ oO
excessive p r opulsion energy might be required to perforrn the
second correction (t1)
3 The third correction is roquired to convert the approach
orbit f rom one which has 1ts perigee in the chosen landing corridor
to one whleh aetuaUy re-enteu the at moephere and i s recover ed
This will normally be accomplished by retrorocket deceleration
but in some caees an atmospheric - induced d rag could be ued (U)
The accuracy o the guidance r eq uired or landing control is
thoroughly r Pvie wed in a NASA r eport by Chapman (Reference )
The consequences of an inaccurate solution to the re-entry homing
problem are considered to be intolerable therefore the uae o shyan opegt loop solution i e r ejectOltl in favor ol a closed loop guidance
bullIaystcm In the latter eystem fliaht condltionbull are conllauauely I
bulljmonitored and correctioxu applied a10 needed thie syatem r equires__ middot
an accur ate predicllon syatem on bord to orpoundt nons c f
the vehicle Correctionbull may be i1tror 1d through applieatlon o
continuoua thrust or t~ough impuleee ~t aelecteci inteJvals (U)
F Re -Eotry Guidance System
A postulated interplAnetary homing re-entry guidance ~chenu
usmg on-board componclts i1 dcpcted in Fig 4 Meaauremente
of ranae r range rate l and the rate opound change of the Une ol
13
1
TRAJECTORY COMPUTER
middotp ~shyK II t ltmiddot )
I 1
CO~TROLLER
V a in ltjJ
UNCL ASSI FIED
STELLAR TRACKING SYSTEM
tJ GYRO- I NERTIAL r-shy =-1 ~ REFERENCE
1 _
ampVACTUAL
A T TIT UOE CONTROL OF
PITCH AXIS ROLL AXIS
AV rshy--shy- -0
11---shy - g
MPNEUVER PJltOPULSION
FIG 4 ON- BOARD LANDING GUIDANCE SYSTEM FOR INTERPLANETARY VEHICLE
UNCLASSIFIED
- ~ __shy- -----middot ---middot--middot~middot-middotmiddot shy middot ---middotmiddot----shy-shy-middot~-----shy
~
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
middotmiddotmiddotmiddot middot --middot --~-~ middot-middotmiddot--middotmiddotmiddotmiddot _
e Only meager evidence exists which would suggest that the
Soviets intend to expand or otherwise improve their deep space
tracking capability evidently being content for the present middotilth
the Crimean facility _l8f
Background High1ights
A comprehensive review of both US and Soviet literature
indicates that recoverable planetary- probes are programmed for
futuro scientific missions The dates involved however will be
dependent on the state-of-the-art advances in such critical areas
as inertial guidaIce tracking systems power supply systems -middot electric propulsion etc Ul
A brtef look at the-8eeP space experiments thus far conducted
by both co~ntriee gives some insight into the complel mission
requirements Problems encountered by the Soviet3 in their deep
space nlissions -ave ~ndomiddot~tedly delayer any time schedult middot~~ich
gtnay have been plaed r 1middote-obull erable planetary misEgt ions Recent
proposals in US technology suggests a 1972-75 time scheduling
for a recoverable planetary vehicle ir this country Th~r tirre
pe_riod however is extremely flexible and again is dependent
upon state-opound~the-art advancements (U)
Because the US does not have a recoverable planetlaquoty vehicle
middot on the drawing board at this time and no information exists il1 the
iV
AFMDC 63-SbSSSECRET
__ - _____ ~middot-middot _____ ----------middotmiddotmiddotmiddot-middot-middot
SECRET
area opound Soviet recoverabl~ planetary missions tide report deals
prilnarily with advanced technological theory supported by current
Soviet recovery mechanlcs (81
Dioeussion
The first Soviet attempt to inject a vehicle into a deep space
trajectory occurred in 1960 On 10 and H October 1960 two illbull
f ated Mars probes were laun ehed from TTMTR These vehicles
080 the Category A ICBM for icitial boost and ~ new third stage
or injection into an earth-orbit This new etage was previously
uaobaervcd and haG a thrust oi --65 000 pounds The tint successbull
ful light opound this sy4tem was on 4 February 1961 however a fourth --middot otae used to inject the payload from a parking orbit into a Venus
tra~ectory apparently ailed on that date A second Venus prbbe
attempt on lZ February l961 did achieve a Venutt ny-by indicatios
ltbat all thc strglttamp f~-Llcti ned aOtisf~ctorHy however tbull ~mmbullmi ~ caUcms llrk laili_ Ttitgt ~_ 1peca probe progran~ higt ltonQngtgtCci
in A-uguat and Septernhltt 1962 (3 Venua fai1ure11)bull and October and
November 196~ (Z Mar~ failuru and I succeuful Maa probgt
Tbampre has been no intelligence evidence or official Soviet announce~
ment to indicate that the USSR had any program to launch n recoverable
planetary probe Indaed the engineerins problems o irttrplaabulletary
navigation attitude control communications r e bull enhmiddoty att
AFMDC 63 - 5655SEE RET
- ~
i I i middotf j i bull
- ---- middotmiddot middot ~ middot _ middot----middotmiddot- --middotshy~ middotmiddot middotmiddotmiddot- ~middot----~ shy
SECRE T
reco very a r e much more complex for s uch a planetary mission
than for near-earth or cislWlar miosions any Soviet prog r am to
accompli sh such a shot would have to be accompamed by a
tremendous sophistication of thei r astro -inertial guidance and
spacecraft control system Such self-contained systems are
necessary for a precisely controtld fly -by opound another planet and
for a well-controUed return to ear th (81
-
Vi
AFMDC 63 - 5655SECRET
middot_ lt bullmiddot 11 - - -~_ - gt middot- bullbull middot~
middot -- ~ bull -- ~ middot- bull bull - bull ( bull bull bull 4 bull bull bull bull bull~
____ -middotmiddotmiddot ~ --middotmiddot--middot ----- _ - _
SECTION
INDICATORS OF A RECOVERABLE SATELLITE PROGRAM
freliminary to the launch of an actual recoverable planetary
vehicle will be tests designed to prove the reliability and poundeasishy
bility o equipment for such missions Indicators which would
reflect that the Soviets are pursuing such a program include
I1 Boosted re-entry ballistic missile firings Such
test$ would aubject components and vehicles to the re-entry ~~locitiea anticipated for interplanetary orbits - on the order of
35000-43000 ft aec U) z Test orbit It is possible to launch a recoverable
space probe on a round trip orbit into space and back requiting
only six months (see Fig 1~ The ptbullobe is launched with a
velocity relative to the earth which is normal to the ecliptic
Thus the plane of the reaulting vehicle orh~t Inkes a smiddot ~a~ti~oi
angle with the plane of the ecliptic and the orbit has a line of
nodes through the launching site The other end of the lin of
nodes is through the recovery site wldch is reached six r~onths
later If the same magnitude of velocity were used for tb5s lobbing
shot as is us ed for a zoecoverable interplanetary spalte prob~ the
vehicle would reach the maximum distance of 15 million m llt~s from
1 _
UNCLASSIFIED
-EARTH AT LOB RECOVERY
I
LAUNCH
FIG 1 A lOSSING DEEP SPACE PROSE
UNCLASSI FlED
middot--- _ ---- middotmiddotmiddot- middotmiddotmiddot -shy _____ -----middot-4__lt4 bullbull- bull bullbullbull bull 4 -middotmiddot
SECRET earth The advantage of such a test orbit ia that 1ts short range
allows a cons1derable amount of data on vehicle performance to
be transmitted back to earth Further the use o a mrectio nal
antenna would not be required thus a breakdown in the attitude
control system of the vehu~le could be diagnosed by telemetry
If such a breakdown occurred at the far greater ranges of an
interplanetary probe it might not be diagnosed inasmuch as the
communications channel depends upon the gain oi the dir~ectlonal
antenna pointed at earth (U)
3 Development of additional deep space i racking
stat1ons The precise orbit deternUnation required for recovershy --middot able middotvehicles will result in the need for additional sophisticated
optical and electronic trackmg facilit1es in the USSR (U)
4 Structural heattng Many problems exist concerning
heatlng of snperorbital re-egttly vPhicle a manit ~ing of tlois
field car ieid ~_ om~ -~gtt ~s to Soviet plan11 for recoverable
planetary missions (U)
S For a true interplanetary round tr~p - ~Ulth as the
example oi the earth to Venus surface to earth surface bull a
t~remendouli ma9 s ratio is required opound chemical prrJpellants In
fact with a respectable speciic impulse of 310 secoud2 and a
3
SECRamiddot
~middot-middot-middot- --- ----middot - - ~ - -- ----middot -~ ------middot middot---middot------- -- - ~---middotmiddot-- - - -
SECTION ll
RECOVERY FROM INTERPLANETARY ORBITS
A Introduction
ln any planetary recovery program there are three bas1c
catego1middotie11 of recovery capsules In order of increasing ~ize
weight and complexity they are
o the instrument capsule
the biocapsule
Q the astronaut capsule (U)
The primary reasons for recovering instrumented probes __
include (l) to determine the effect of the space environment on
space-borne equipment (2) to attempt to simplify the equipment
reduce its complexity and hence improve its reliability and (3)
to develop recovery techniques for the benefit of future orbital
glide programs The scientific datg collected in lthe vicinity of
the target plmet will normally have been telemetered ba~k to
earth however a close review of tha actual pack ~glaquo vbullill enhance
the value of the collected information Future exp~imeots will
permit the development of biosatellites with the ass ranee of
regaining the specimens for proper evalu tioo of r~ middot middot~ts
FurthPr a weU-designed space capsule with a low Crmiddotlt may
5
- -- -middotmiddot- middotmiddot - middot ---- middot ~middotmiddotmiddot --middot-middotmiddot middot~middot- middot middot middotmiddotmiddot--middotmiddotmiddotmiddot --~---middot-middot-~----middotmiddotmiddotmiddot------~ middot- middotmiddotmiddot -middotmiddot~ middotmiddot--middotmiddotmiddotmiddot
become for the astronaut what the parachute is to the aviator shy
a chance for survival in case oi failure of the main vehicle Such
a human middot-carryng biocapaule would have to be equipped with
stabilizers jet and aerodynamic to prevent rotation and
tuInbling (U)
B Ballistic Vehicles
Our discussion will be limited to the recovery of pulely ballistic
interplanetary vehicles inasmuch as that wi1l most probably be the
design of all initial vehicles in a space recovery program The
sphere is the present prototype of a ballistic space capsule which -
can be used to advantage for recoverable planetary missions Of
course every syn1metric body at zero angle of attack is also a
nonlifting (ie ballistic) body and could be utilized for the flight -
Fer a sphere the drag coefficient atays close to unity most of the
time and if i middot~ loses litte middotJeight due tn blai-n t gtalhsti-
coeC bull _ient __- bull ~emuna essentially constant (U)CnA
The tleajectory which a typical superorbital ploneuy) ballistic
-e-entry vehicle follows is defined by
Qgt initial re-entry velocity Vi
Ill initial re-entry angle Y
o ballistic coefficient of vehicle (-c2)
middotmiddot - ~middot middot middot middot ~
- -middot-~- bull middot----- ----middot---- - - middot - _- ~--------- ~ --- -T------ - --middot--middot~---- - ___
~ bull ltll bull
-- middot - - bullbull --- middotmiddotmiddotmiddotmiddot _ middot---middot bull- - - _J_ __ -middot
Most re-entry vehicle trajectories are treated as a two-body problem
1nvolvins a central forre 1eld with the assumption of a nonr-otat ing
atmosphere and 7ero thrust S tarting with a ltnown initi al velocity
altitude and angle between the velocity vector and the local horishy
pounde ntal trajec tory parameters dete r mined are velocity alti tude
Ugbt path angle t angential acceleration rate of altitude change and
the geocentric angle - all as unctions of the independent variable i time (see Roeences 13 and 15) Aa can be seen these var iables
wtllllrovide an infinite number of re-entry trajectQries until the
actual vehi cle and mission parame~ere are described As aI r I
1 r
practicd matter re-entry anatee will probably be kept under -10deg
W1th initial velocities on the order of 35000 to 430CO Ct sec (U) middotshyI C Re-Entry CorridorI i Well known is the fact thegtt the re-entry angl o determination is I ~ J quite critical U er~ry is oo -hllow the v~~icle i 1t~htlbulltJ
pierce tht ITIsple~ ~bullbull 1 continue out into space or illto a
geocentric orb1t) on the other hand a too-large entry a ngle yields
heating and structural (deceleration) problems wlllch could adver sely
affect the v$bicle Thi~ aivea rise to the concept of the re-entry
corridor which is defined by an undershoot and overanoot boundary
The corr~dor width w is given a11 the diatance betwcaen the conic
per iaecs of the two boundarieu (ice Fig Z) As h app-nt ro1n
--
- ~-- middot- - middotmiddot middotmiddot--middot middotmiddotmiddotmiddotmiddotmiddot-- -----middot -- ----- -middotmiddot- -middot- _______ ___ _____-------middot- -middot- middot-middot- ---middotmiddot
UNCLASSIFIED
VEHICLE
middot middot
CONiCS
FIG Z LANDING CORRIDOR WIDTH
UNCLASSIFIED 8
_ - - middot middot- -- -~middotmiddot __ _ _ _~ middot middot middot _~-middot __ _-- ~ middotmiddotmiddotmiddotmiddotshy_
I
I l
l -1
f I
r ~-i
the preceltHng discussion the Wldth o ( the corridor w lll be a
unction o entry veloclty entzy angle and ballistic cocliicient
(Liltdrag ratios and modulation metbcxs al so influence w for
nonballistic boche=) Consequently for a g~ven velucle and entry
veloc1ty Lhe corridor may be represented by a range of acceptshy
able entry angles Conversely if the range o acceptable eotry
angles as known the corndor width is determined by calculating
the Keplenan perigees and measuring the dHeren c e between
peri gee alti tude- Corridor width as depoundmed by either w 01 Y
may thereioce be used to s t ipulate the maximum tolerable errors -for a guidance syatem U)
D Space Vehi cl Veloc i tiea
The veloci ti es assoc iated with space miesions are
circular
ell ipse bull
parabolic
hyperbolic
where K famp the gravitattonal parameter a charact eamiddot lc constant
16 3 of the attract iog body M (or earth it io 140752 X ) t I e ecZ)
a nd r 1s th e radial distance from the attrac ti ng focur_ All e arh 1
__ _ _____ _~ middot _ --middotmiddot~-- ~-
satelhtes possess either circula1middot 01 elliptical velocities In a
parabolic orbit the vehicle 1s entire kinetic energy is used up in
overcoming the central bodys entire potential energy between the
in9tantaneous distance and infinity The vehicle therefore has a
velocity of 0 at infinity -that is after escape In a hyperbolic
orb1t the vehicle has more kinetic energy than necessary for
overconung the gravitational potential opound the central body Thereshy
fore even after escape from the body the vehicle has a finite
remaining velocity which is used to change its orbital energy with
respect to the central force field of the middotnext higher order bull namely
the solar field (U
E Re-Entry Maneuvers
The maneuvers that are required to convert the ~yperbolic
approach orbit which develops as the vehicle begins to respond to
the influence o the gravitational filld of i~s ds~natim to an crbit
which leads to 11afe penetl ~middotion of the plbullll~tary atmosphere will _-
now be discussed (see Fig 3) The criteria for a eatisfactory
landing trajectory include the concept of a landing corridor described
above Sale landing paths are correlated with the configuration of
the spacecraft and with the altitude of the Keplerian perigees for
the approach trajectory This is the perigee which would occur if
I the approach trajectory were not perturbed by the effects of
10
- middotshy
--
I
l-- ___ ~-~middot--~----~~--c- ~ ---~ --=-middot~---~--~------middot--- middot middot ~ -- -~-~--~ -~~~ ----- --~~- ~ middot-_
______ _ --- -middot--middot- ---middot- middotmiddot-middotmiddot ---middotmiddot__--- middotmiddot - middot
UNCLASS IFI EO
-middot middotmiddotshy
bull
I i ~
-F~G 3 APPROACH middotANO ltRE-ENTRY TRAJECTORY
UNCLASSIF1EO
l J
-shyltmiddot
~ - - - - - -
~-tA~ - middot middotmiddot ~
~j
~ middot----- shy
- -- -middotmiddot - ~ I bull
- - bull -~ bull 1 I gt bull 0 bull bull o 9
- ---middot middotmiddotmiddot- -middot -middot - - ----middot--middot--- ____ -----middot ___________ __ -----~
I
-~
atmospheric drag Using thiamp correlation the control of the
spacecraft to place it in a landing path will be accomplished 1f it
1s COttrolled in such a way as to _place its Keplerian perigee
wtthin a dea1gnated landing corridor This is accomplished by
maneuvers which modiy the approach trajectory until the orbit
relations which may be measured indicate a value of perigee
_ radius rp and velocity vpbull which are within the indicated
landing corridor It is envisioned that such a 1middoteturn problem will
be accomplished by the application of corrections (coarse and
iine) to the return trajectory as follows
-shy1 First corrections are applied at a point sufficiently
disant to assure_that the trajectory will close with the earth such
as to allow fine corrections at a later time This first correction
i rather simple in application and for middotbest results it will be
i J
pe rormed at the greatEgtst pc sible distn shye h om earth in ce bull bullro
conserve fuel Th~gt -1istane iF hmiddottuted oy the accuracy with which 1 Lhe correction can be computed and applied U)
2 The liecond correction adjusts the approach trajeuroctory
c3usmg it to pass through the narrow landing corridor Thi6
corrlction is applied fa1rly close to earth when precision meas1bullreshy
menta of the trajectory are feasible Without the first correction
~ 12 i
- bullbull-bull--bullbullbull bullmiddot-~-- middot-Wbullbull bull _ oO
excessive p r opulsion energy might be required to perforrn the
second correction (t1)
3 The third correction is roquired to convert the approach
orbit f rom one which has 1ts perigee in the chosen landing corridor
to one whleh aetuaUy re-enteu the at moephere and i s recover ed
This will normally be accomplished by retrorocket deceleration
but in some caees an atmospheric - induced d rag could be ued (U)
The accuracy o the guidance r eq uired or landing control is
thoroughly r Pvie wed in a NASA r eport by Chapman (Reference )
The consequences of an inaccurate solution to the re-entry homing
problem are considered to be intolerable therefore the uae o shyan opegt loop solution i e r ejectOltl in favor ol a closed loop guidance
bullIaystcm In the latter eystem fliaht condltionbull are conllauauely I
bulljmonitored and correctioxu applied a10 needed thie syatem r equires__ middot
an accur ate predicllon syatem on bord to orpoundt nons c f
the vehicle Correctionbull may be i1tror 1d through applieatlon o
continuoua thrust or t~ough impuleee ~t aelecteci inteJvals (U)
F Re -Eotry Guidance System
A postulated interplAnetary homing re-entry guidance ~chenu
usmg on-board componclts i1 dcpcted in Fig 4 Meaauremente
of ranae r range rate l and the rate opound change of the Une ol
13
1
TRAJECTORY COMPUTER
middotp ~shyK II t ltmiddot )
I 1
CO~TROLLER
V a in ltjJ
UNCL ASSI FIED
STELLAR TRACKING SYSTEM
tJ GYRO- I NERTIAL r-shy =-1 ~ REFERENCE
1 _
ampVACTUAL
A T TIT UOE CONTROL OF
PITCH AXIS ROLL AXIS
AV rshy--shy- -0
11---shy - g
MPNEUVER PJltOPULSION
FIG 4 ON- BOARD LANDING GUIDANCE SYSTEM FOR INTERPLANETARY VEHICLE
UNCLASSIFIED
- ~ __shy- -----middot ---middot--middot~middot-middotmiddot shy middot ---middotmiddot----shy-shy-middot~-----shy
~
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
__ - _____ ~middot-middot _____ ----------middotmiddotmiddotmiddot-middot-middot
SECRET
area opound Soviet recoverabl~ planetary missions tide report deals
prilnarily with advanced technological theory supported by current
Soviet recovery mechanlcs (81
Dioeussion
The first Soviet attempt to inject a vehicle into a deep space
trajectory occurred in 1960 On 10 and H October 1960 two illbull
f ated Mars probes were laun ehed from TTMTR These vehicles
080 the Category A ICBM for icitial boost and ~ new third stage
or injection into an earth-orbit This new etage was previously
uaobaervcd and haG a thrust oi --65 000 pounds The tint successbull
ful light opound this sy4tem was on 4 February 1961 however a fourth --middot otae used to inject the payload from a parking orbit into a Venus
tra~ectory apparently ailed on that date A second Venus prbbe
attempt on lZ February l961 did achieve a Venutt ny-by indicatios
ltbat all thc strglttamp f~-Llcti ned aOtisf~ctorHy however tbull ~mmbullmi ~ caUcms llrk laili_ Ttitgt ~_ 1peca probe progran~ higt ltonQngtgtCci
in A-uguat and Septernhltt 1962 (3 Venua fai1ure11)bull and October and
November 196~ (Z Mar~ failuru and I succeuful Maa probgt
Tbampre has been no intelligence evidence or official Soviet announce~
ment to indicate that the USSR had any program to launch n recoverable
planetary probe Indaed the engineerins problems o irttrplaabulletary
navigation attitude control communications r e bull enhmiddoty att
AFMDC 63 - 5655SEE RET
- ~
i I i middotf j i bull
- ---- middotmiddot middot ~ middot _ middot----middotmiddot- --middotshy~ middotmiddot middotmiddotmiddot- ~middot----~ shy
SECRE T
reco very a r e much more complex for s uch a planetary mission
than for near-earth or cislWlar miosions any Soviet prog r am to
accompli sh such a shot would have to be accompamed by a
tremendous sophistication of thei r astro -inertial guidance and
spacecraft control system Such self-contained systems are
necessary for a precisely controtld fly -by opound another planet and
for a well-controUed return to ear th (81
-
Vi
AFMDC 63 - 5655SECRET
middot_ lt bullmiddot 11 - - -~_ - gt middot- bullbull middot~
middot -- ~ bull -- ~ middot- bull bull - bull ( bull bull bull 4 bull bull bull bull bull~
____ -middotmiddotmiddot ~ --middotmiddot--middot ----- _ - _
SECTION
INDICATORS OF A RECOVERABLE SATELLITE PROGRAM
freliminary to the launch of an actual recoverable planetary
vehicle will be tests designed to prove the reliability and poundeasishy
bility o equipment for such missions Indicators which would
reflect that the Soviets are pursuing such a program include
I1 Boosted re-entry ballistic missile firings Such
test$ would aubject components and vehicles to the re-entry ~~locitiea anticipated for interplanetary orbits - on the order of
35000-43000 ft aec U) z Test orbit It is possible to launch a recoverable
space probe on a round trip orbit into space and back requiting
only six months (see Fig 1~ The ptbullobe is launched with a
velocity relative to the earth which is normal to the ecliptic
Thus the plane of the reaulting vehicle orh~t Inkes a smiddot ~a~ti~oi
angle with the plane of the ecliptic and the orbit has a line of
nodes through the launching site The other end of the lin of
nodes is through the recovery site wldch is reached six r~onths
later If the same magnitude of velocity were used for tb5s lobbing
shot as is us ed for a zoecoverable interplanetary spalte prob~ the
vehicle would reach the maximum distance of 15 million m llt~s from
1 _
UNCLASSIFIED
-EARTH AT LOB RECOVERY
I
LAUNCH
FIG 1 A lOSSING DEEP SPACE PROSE
UNCLASSI FlED
middot--- _ ---- middotmiddotmiddot- middotmiddotmiddot -shy _____ -----middot-4__lt4 bullbull- bull bullbullbull bull 4 -middotmiddot
SECRET earth The advantage of such a test orbit ia that 1ts short range
allows a cons1derable amount of data on vehicle performance to
be transmitted back to earth Further the use o a mrectio nal
antenna would not be required thus a breakdown in the attitude
control system of the vehu~le could be diagnosed by telemetry
If such a breakdown occurred at the far greater ranges of an
interplanetary probe it might not be diagnosed inasmuch as the
communications channel depends upon the gain oi the dir~ectlonal
antenna pointed at earth (U)
3 Development of additional deep space i racking
stat1ons The precise orbit deternUnation required for recovershy --middot able middotvehicles will result in the need for additional sophisticated
optical and electronic trackmg facilit1es in the USSR (U)
4 Structural heattng Many problems exist concerning
heatlng of snperorbital re-egttly vPhicle a manit ~ing of tlois
field car ieid ~_ om~ -~gtt ~s to Soviet plan11 for recoverable
planetary missions (U)
S For a true interplanetary round tr~p - ~Ulth as the
example oi the earth to Venus surface to earth surface bull a
t~remendouli ma9 s ratio is required opound chemical prrJpellants In
fact with a respectable speciic impulse of 310 secoud2 and a
3
SECRamiddot
~middot-middot-middot- --- ----middot - - ~ - -- ----middot -~ ------middot middot---middot------- -- - ~---middotmiddot-- - - -
SECTION ll
RECOVERY FROM INTERPLANETARY ORBITS
A Introduction
ln any planetary recovery program there are three bas1c
catego1middotie11 of recovery capsules In order of increasing ~ize
weight and complexity they are
o the instrument capsule
the biocapsule
Q the astronaut capsule (U)
The primary reasons for recovering instrumented probes __
include (l) to determine the effect of the space environment on
space-borne equipment (2) to attempt to simplify the equipment
reduce its complexity and hence improve its reliability and (3)
to develop recovery techniques for the benefit of future orbital
glide programs The scientific datg collected in lthe vicinity of
the target plmet will normally have been telemetered ba~k to
earth however a close review of tha actual pack ~glaquo vbullill enhance
the value of the collected information Future exp~imeots will
permit the development of biosatellites with the ass ranee of
regaining the specimens for proper evalu tioo of r~ middot middot~ts
FurthPr a weU-designed space capsule with a low Crmiddotlt may
5
- -- -middotmiddot- middotmiddot - middot ---- middot ~middotmiddotmiddot --middot-middotmiddot middot~middot- middot middot middotmiddotmiddot--middotmiddotmiddotmiddot --~---middot-middot-~----middotmiddotmiddotmiddot------~ middot- middotmiddotmiddot -middotmiddot~ middotmiddot--middotmiddotmiddotmiddot
become for the astronaut what the parachute is to the aviator shy
a chance for survival in case oi failure of the main vehicle Such
a human middot-carryng biocapaule would have to be equipped with
stabilizers jet and aerodynamic to prevent rotation and
tuInbling (U)
B Ballistic Vehicles
Our discussion will be limited to the recovery of pulely ballistic
interplanetary vehicles inasmuch as that wi1l most probably be the
design of all initial vehicles in a space recovery program The
sphere is the present prototype of a ballistic space capsule which -
can be used to advantage for recoverable planetary missions Of
course every syn1metric body at zero angle of attack is also a
nonlifting (ie ballistic) body and could be utilized for the flight -
Fer a sphere the drag coefficient atays close to unity most of the
time and if i middot~ loses litte middotJeight due tn blai-n t gtalhsti-
coeC bull _ient __- bull ~emuna essentially constant (U)CnA
The tleajectory which a typical superorbital ploneuy) ballistic
-e-entry vehicle follows is defined by
Qgt initial re-entry velocity Vi
Ill initial re-entry angle Y
o ballistic coefficient of vehicle (-c2)
middotmiddot - ~middot middot middot middot ~
- -middot-~- bull middot----- ----middot---- - - middot - _- ~--------- ~ --- -T------ - --middot--middot~---- - ___
~ bull ltll bull
-- middot - - bullbull --- middotmiddotmiddotmiddotmiddot _ middot---middot bull- - - _J_ __ -middot
Most re-entry vehicle trajectories are treated as a two-body problem
1nvolvins a central forre 1eld with the assumption of a nonr-otat ing
atmosphere and 7ero thrust S tarting with a ltnown initi al velocity
altitude and angle between the velocity vector and the local horishy
pounde ntal trajec tory parameters dete r mined are velocity alti tude
Ugbt path angle t angential acceleration rate of altitude change and
the geocentric angle - all as unctions of the independent variable i time (see Roeences 13 and 15) Aa can be seen these var iables
wtllllrovide an infinite number of re-entry trajectQries until the
actual vehi cle and mission parame~ere are described As aI r I
1 r
practicd matter re-entry anatee will probably be kept under -10deg
W1th initial velocities on the order of 35000 to 430CO Ct sec (U) middotshyI C Re-Entry CorridorI i Well known is the fact thegtt the re-entry angl o determination is I ~ J quite critical U er~ry is oo -hllow the v~~icle i 1t~htlbulltJ
pierce tht ITIsple~ ~bullbull 1 continue out into space or illto a
geocentric orb1t) on the other hand a too-large entry a ngle yields
heating and structural (deceleration) problems wlllch could adver sely
affect the v$bicle Thi~ aivea rise to the concept of the re-entry
corridor which is defined by an undershoot and overanoot boundary
The corr~dor width w is given a11 the diatance betwcaen the conic
per iaecs of the two boundarieu (ice Fig Z) As h app-nt ro1n
--
- ~-- middot- - middotmiddot middotmiddot--middot middotmiddotmiddotmiddotmiddotmiddot-- -----middot -- ----- -middotmiddot- -middot- _______ ___ _____-------middot- -middot- middot-middot- ---middotmiddot
UNCLASSIFIED
VEHICLE
middot middot
CONiCS
FIG Z LANDING CORRIDOR WIDTH
UNCLASSIFIED 8
_ - - middot middot- -- -~middotmiddot __ _ _ _~ middot middot middot _~-middot __ _-- ~ middotmiddotmiddotmiddotmiddotshy_
I
I l
l -1
f I
r ~-i
the preceltHng discussion the Wldth o ( the corridor w lll be a
unction o entry veloclty entzy angle and ballistic cocliicient
(Liltdrag ratios and modulation metbcxs al so influence w for
nonballistic boche=) Consequently for a g~ven velucle and entry
veloc1ty Lhe corridor may be represented by a range of acceptshy
able entry angles Conversely if the range o acceptable eotry
angles as known the corndor width is determined by calculating
the Keplenan perigees and measuring the dHeren c e between
peri gee alti tude- Corridor width as depoundmed by either w 01 Y
may thereioce be used to s t ipulate the maximum tolerable errors -for a guidance syatem U)
D Space Vehi cl Veloc i tiea
The veloci ti es assoc iated with space miesions are
circular
ell ipse bull
parabolic
hyperbolic
where K famp the gravitattonal parameter a charact eamiddot lc constant
16 3 of the attract iog body M (or earth it io 140752 X ) t I e ecZ)
a nd r 1s th e radial distance from the attrac ti ng focur_ All e arh 1
__ _ _____ _~ middot _ --middotmiddot~-- ~-
satelhtes possess either circula1middot 01 elliptical velocities In a
parabolic orbit the vehicle 1s entire kinetic energy is used up in
overcoming the central bodys entire potential energy between the
in9tantaneous distance and infinity The vehicle therefore has a
velocity of 0 at infinity -that is after escape In a hyperbolic
orb1t the vehicle has more kinetic energy than necessary for
overconung the gravitational potential opound the central body Thereshy
fore even after escape from the body the vehicle has a finite
remaining velocity which is used to change its orbital energy with
respect to the central force field of the middotnext higher order bull namely
the solar field (U
E Re-Entry Maneuvers
The maneuvers that are required to convert the ~yperbolic
approach orbit which develops as the vehicle begins to respond to
the influence o the gravitational filld of i~s ds~natim to an crbit
which leads to 11afe penetl ~middotion of the plbullll~tary atmosphere will _-
now be discussed (see Fig 3) The criteria for a eatisfactory
landing trajectory include the concept of a landing corridor described
above Sale landing paths are correlated with the configuration of
the spacecraft and with the altitude of the Keplerian perigees for
the approach trajectory This is the perigee which would occur if
I the approach trajectory were not perturbed by the effects of
10
- middotshy
--
I
l-- ___ ~-~middot--~----~~--c- ~ ---~ --=-middot~---~--~------middot--- middot middot ~ -- -~-~--~ -~~~ ----- --~~- ~ middot-_
______ _ --- -middot--middot- ---middot- middotmiddot-middotmiddot ---middotmiddot__--- middotmiddot - middot
UNCLASS IFI EO
-middot middotmiddotshy
bull
I i ~
-F~G 3 APPROACH middotANO ltRE-ENTRY TRAJECTORY
UNCLASSIF1EO
l J
-shyltmiddot
~ - - - - - -
~-tA~ - middot middotmiddot ~
~j
~ middot----- shy
- -- -middotmiddot - ~ I bull
- - bull -~ bull 1 I gt bull 0 bull bull o 9
- ---middot middotmiddotmiddot- -middot -middot - - ----middot--middot--- ____ -----middot ___________ __ -----~
I
-~
atmospheric drag Using thiamp correlation the control of the
spacecraft to place it in a landing path will be accomplished 1f it
1s COttrolled in such a way as to _place its Keplerian perigee
wtthin a dea1gnated landing corridor This is accomplished by
maneuvers which modiy the approach trajectory until the orbit
relations which may be measured indicate a value of perigee
_ radius rp and velocity vpbull which are within the indicated
landing corridor It is envisioned that such a 1middoteturn problem will
be accomplished by the application of corrections (coarse and
iine) to the return trajectory as follows
-shy1 First corrections are applied at a point sufficiently
disant to assure_that the trajectory will close with the earth such
as to allow fine corrections at a later time This first correction
i rather simple in application and for middotbest results it will be
i J
pe rormed at the greatEgtst pc sible distn shye h om earth in ce bull bullro
conserve fuel Th~gt -1istane iF hmiddottuted oy the accuracy with which 1 Lhe correction can be computed and applied U)
2 The liecond correction adjusts the approach trajeuroctory
c3usmg it to pass through the narrow landing corridor Thi6
corrlction is applied fa1rly close to earth when precision meas1bullreshy
menta of the trajectory are feasible Without the first correction
~ 12 i
- bullbull-bull--bullbullbull bullmiddot-~-- middot-Wbullbull bull _ oO
excessive p r opulsion energy might be required to perforrn the
second correction (t1)
3 The third correction is roquired to convert the approach
orbit f rom one which has 1ts perigee in the chosen landing corridor
to one whleh aetuaUy re-enteu the at moephere and i s recover ed
This will normally be accomplished by retrorocket deceleration
but in some caees an atmospheric - induced d rag could be ued (U)
The accuracy o the guidance r eq uired or landing control is
thoroughly r Pvie wed in a NASA r eport by Chapman (Reference )
The consequences of an inaccurate solution to the re-entry homing
problem are considered to be intolerable therefore the uae o shyan opegt loop solution i e r ejectOltl in favor ol a closed loop guidance
bullIaystcm In the latter eystem fliaht condltionbull are conllauauely I
bulljmonitored and correctioxu applied a10 needed thie syatem r equires__ middot
an accur ate predicllon syatem on bord to orpoundt nons c f
the vehicle Correctionbull may be i1tror 1d through applieatlon o
continuoua thrust or t~ough impuleee ~t aelecteci inteJvals (U)
F Re -Eotry Guidance System
A postulated interplAnetary homing re-entry guidance ~chenu
usmg on-board componclts i1 dcpcted in Fig 4 Meaauremente
of ranae r range rate l and the rate opound change of the Une ol
13
1
TRAJECTORY COMPUTER
middotp ~shyK II t ltmiddot )
I 1
CO~TROLLER
V a in ltjJ
UNCL ASSI FIED
STELLAR TRACKING SYSTEM
tJ GYRO- I NERTIAL r-shy =-1 ~ REFERENCE
1 _
ampVACTUAL
A T TIT UOE CONTROL OF
PITCH AXIS ROLL AXIS
AV rshy--shy- -0
11---shy - g
MPNEUVER PJltOPULSION
FIG 4 ON- BOARD LANDING GUIDANCE SYSTEM FOR INTERPLANETARY VEHICLE
UNCLASSIFIED
- ~ __shy- -----middot ---middot--middot~middot-middotmiddot shy middot ---middotmiddot----shy-shy-middot~-----shy
~
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
- ~
i I i middotf j i bull
- ---- middotmiddot middot ~ middot _ middot----middotmiddot- --middotshy~ middotmiddot middotmiddotmiddot- ~middot----~ shy
SECRE T
reco very a r e much more complex for s uch a planetary mission
than for near-earth or cislWlar miosions any Soviet prog r am to
accompli sh such a shot would have to be accompamed by a
tremendous sophistication of thei r astro -inertial guidance and
spacecraft control system Such self-contained systems are
necessary for a precisely controtld fly -by opound another planet and
for a well-controUed return to ear th (81
-
Vi
AFMDC 63 - 5655SECRET
middot_ lt bullmiddot 11 - - -~_ - gt middot- bullbull middot~
middot -- ~ bull -- ~ middot- bull bull - bull ( bull bull bull 4 bull bull bull bull bull~
____ -middotmiddotmiddot ~ --middotmiddot--middot ----- _ - _
SECTION
INDICATORS OF A RECOVERABLE SATELLITE PROGRAM
freliminary to the launch of an actual recoverable planetary
vehicle will be tests designed to prove the reliability and poundeasishy
bility o equipment for such missions Indicators which would
reflect that the Soviets are pursuing such a program include
I1 Boosted re-entry ballistic missile firings Such
test$ would aubject components and vehicles to the re-entry ~~locitiea anticipated for interplanetary orbits - on the order of
35000-43000 ft aec U) z Test orbit It is possible to launch a recoverable
space probe on a round trip orbit into space and back requiting
only six months (see Fig 1~ The ptbullobe is launched with a
velocity relative to the earth which is normal to the ecliptic
Thus the plane of the reaulting vehicle orh~t Inkes a smiddot ~a~ti~oi
angle with the plane of the ecliptic and the orbit has a line of
nodes through the launching site The other end of the lin of
nodes is through the recovery site wldch is reached six r~onths
later If the same magnitude of velocity were used for tb5s lobbing
shot as is us ed for a zoecoverable interplanetary spalte prob~ the
vehicle would reach the maximum distance of 15 million m llt~s from
1 _
UNCLASSIFIED
-EARTH AT LOB RECOVERY
I
LAUNCH
FIG 1 A lOSSING DEEP SPACE PROSE
UNCLASSI FlED
middot--- _ ---- middotmiddotmiddot- middotmiddotmiddot -shy _____ -----middot-4__lt4 bullbull- bull bullbullbull bull 4 -middotmiddot
SECRET earth The advantage of such a test orbit ia that 1ts short range
allows a cons1derable amount of data on vehicle performance to
be transmitted back to earth Further the use o a mrectio nal
antenna would not be required thus a breakdown in the attitude
control system of the vehu~le could be diagnosed by telemetry
If such a breakdown occurred at the far greater ranges of an
interplanetary probe it might not be diagnosed inasmuch as the
communications channel depends upon the gain oi the dir~ectlonal
antenna pointed at earth (U)
3 Development of additional deep space i racking
stat1ons The precise orbit deternUnation required for recovershy --middot able middotvehicles will result in the need for additional sophisticated
optical and electronic trackmg facilit1es in the USSR (U)
4 Structural heattng Many problems exist concerning
heatlng of snperorbital re-egttly vPhicle a manit ~ing of tlois
field car ieid ~_ om~ -~gtt ~s to Soviet plan11 for recoverable
planetary missions (U)
S For a true interplanetary round tr~p - ~Ulth as the
example oi the earth to Venus surface to earth surface bull a
t~remendouli ma9 s ratio is required opound chemical prrJpellants In
fact with a respectable speciic impulse of 310 secoud2 and a
3
SECRamiddot
~middot-middot-middot- --- ----middot - - ~ - -- ----middot -~ ------middot middot---middot------- -- - ~---middotmiddot-- - - -
SECTION ll
RECOVERY FROM INTERPLANETARY ORBITS
A Introduction
ln any planetary recovery program there are three bas1c
catego1middotie11 of recovery capsules In order of increasing ~ize
weight and complexity they are
o the instrument capsule
the biocapsule
Q the astronaut capsule (U)
The primary reasons for recovering instrumented probes __
include (l) to determine the effect of the space environment on
space-borne equipment (2) to attempt to simplify the equipment
reduce its complexity and hence improve its reliability and (3)
to develop recovery techniques for the benefit of future orbital
glide programs The scientific datg collected in lthe vicinity of
the target plmet will normally have been telemetered ba~k to
earth however a close review of tha actual pack ~glaquo vbullill enhance
the value of the collected information Future exp~imeots will
permit the development of biosatellites with the ass ranee of
regaining the specimens for proper evalu tioo of r~ middot middot~ts
FurthPr a weU-designed space capsule with a low Crmiddotlt may
5
- -- -middotmiddot- middotmiddot - middot ---- middot ~middotmiddotmiddot --middot-middotmiddot middot~middot- middot middot middotmiddotmiddot--middotmiddotmiddotmiddot --~---middot-middot-~----middotmiddotmiddotmiddot------~ middot- middotmiddotmiddot -middotmiddot~ middotmiddot--middotmiddotmiddotmiddot
become for the astronaut what the parachute is to the aviator shy
a chance for survival in case oi failure of the main vehicle Such
a human middot-carryng biocapaule would have to be equipped with
stabilizers jet and aerodynamic to prevent rotation and
tuInbling (U)
B Ballistic Vehicles
Our discussion will be limited to the recovery of pulely ballistic
interplanetary vehicles inasmuch as that wi1l most probably be the
design of all initial vehicles in a space recovery program The
sphere is the present prototype of a ballistic space capsule which -
can be used to advantage for recoverable planetary missions Of
course every syn1metric body at zero angle of attack is also a
nonlifting (ie ballistic) body and could be utilized for the flight -
Fer a sphere the drag coefficient atays close to unity most of the
time and if i middot~ loses litte middotJeight due tn blai-n t gtalhsti-
coeC bull _ient __- bull ~emuna essentially constant (U)CnA
The tleajectory which a typical superorbital ploneuy) ballistic
-e-entry vehicle follows is defined by
Qgt initial re-entry velocity Vi
Ill initial re-entry angle Y
o ballistic coefficient of vehicle (-c2)
middotmiddot - ~middot middot middot middot ~
- -middot-~- bull middot----- ----middot---- - - middot - _- ~--------- ~ --- -T------ - --middot--middot~---- - ___
~ bull ltll bull
-- middot - - bullbull --- middotmiddotmiddotmiddotmiddot _ middot---middot bull- - - _J_ __ -middot
Most re-entry vehicle trajectories are treated as a two-body problem
1nvolvins a central forre 1eld with the assumption of a nonr-otat ing
atmosphere and 7ero thrust S tarting with a ltnown initi al velocity
altitude and angle between the velocity vector and the local horishy
pounde ntal trajec tory parameters dete r mined are velocity alti tude
Ugbt path angle t angential acceleration rate of altitude change and
the geocentric angle - all as unctions of the independent variable i time (see Roeences 13 and 15) Aa can be seen these var iables
wtllllrovide an infinite number of re-entry trajectQries until the
actual vehi cle and mission parame~ere are described As aI r I
1 r
practicd matter re-entry anatee will probably be kept under -10deg
W1th initial velocities on the order of 35000 to 430CO Ct sec (U) middotshyI C Re-Entry CorridorI i Well known is the fact thegtt the re-entry angl o determination is I ~ J quite critical U er~ry is oo -hllow the v~~icle i 1t~htlbulltJ
pierce tht ITIsple~ ~bullbull 1 continue out into space or illto a
geocentric orb1t) on the other hand a too-large entry a ngle yields
heating and structural (deceleration) problems wlllch could adver sely
affect the v$bicle Thi~ aivea rise to the concept of the re-entry
corridor which is defined by an undershoot and overanoot boundary
The corr~dor width w is given a11 the diatance betwcaen the conic
per iaecs of the two boundarieu (ice Fig Z) As h app-nt ro1n
--
- ~-- middot- - middotmiddot middotmiddot--middot middotmiddotmiddotmiddotmiddotmiddot-- -----middot -- ----- -middotmiddot- -middot- _______ ___ _____-------middot- -middot- middot-middot- ---middotmiddot
UNCLASSIFIED
VEHICLE
middot middot
CONiCS
FIG Z LANDING CORRIDOR WIDTH
UNCLASSIFIED 8
_ - - middot middot- -- -~middotmiddot __ _ _ _~ middot middot middot _~-middot __ _-- ~ middotmiddotmiddotmiddotmiddotshy_
I
I l
l -1
f I
r ~-i
the preceltHng discussion the Wldth o ( the corridor w lll be a
unction o entry veloclty entzy angle and ballistic cocliicient
(Liltdrag ratios and modulation metbcxs al so influence w for
nonballistic boche=) Consequently for a g~ven velucle and entry
veloc1ty Lhe corridor may be represented by a range of acceptshy
able entry angles Conversely if the range o acceptable eotry
angles as known the corndor width is determined by calculating
the Keplenan perigees and measuring the dHeren c e between
peri gee alti tude- Corridor width as depoundmed by either w 01 Y
may thereioce be used to s t ipulate the maximum tolerable errors -for a guidance syatem U)
D Space Vehi cl Veloc i tiea
The veloci ti es assoc iated with space miesions are
circular
ell ipse bull
parabolic
hyperbolic
where K famp the gravitattonal parameter a charact eamiddot lc constant
16 3 of the attract iog body M (or earth it io 140752 X ) t I e ecZ)
a nd r 1s th e radial distance from the attrac ti ng focur_ All e arh 1
__ _ _____ _~ middot _ --middotmiddot~-- ~-
satelhtes possess either circula1middot 01 elliptical velocities In a
parabolic orbit the vehicle 1s entire kinetic energy is used up in
overcoming the central bodys entire potential energy between the
in9tantaneous distance and infinity The vehicle therefore has a
velocity of 0 at infinity -that is after escape In a hyperbolic
orb1t the vehicle has more kinetic energy than necessary for
overconung the gravitational potential opound the central body Thereshy
fore even after escape from the body the vehicle has a finite
remaining velocity which is used to change its orbital energy with
respect to the central force field of the middotnext higher order bull namely
the solar field (U
E Re-Entry Maneuvers
The maneuvers that are required to convert the ~yperbolic
approach orbit which develops as the vehicle begins to respond to
the influence o the gravitational filld of i~s ds~natim to an crbit
which leads to 11afe penetl ~middotion of the plbullll~tary atmosphere will _-
now be discussed (see Fig 3) The criteria for a eatisfactory
landing trajectory include the concept of a landing corridor described
above Sale landing paths are correlated with the configuration of
the spacecraft and with the altitude of the Keplerian perigees for
the approach trajectory This is the perigee which would occur if
I the approach trajectory were not perturbed by the effects of
10
- middotshy
--
I
l-- ___ ~-~middot--~----~~--c- ~ ---~ --=-middot~---~--~------middot--- middot middot ~ -- -~-~--~ -~~~ ----- --~~- ~ middot-_
______ _ --- -middot--middot- ---middot- middotmiddot-middotmiddot ---middotmiddot__--- middotmiddot - middot
UNCLASS IFI EO
-middot middotmiddotshy
bull
I i ~
-F~G 3 APPROACH middotANO ltRE-ENTRY TRAJECTORY
UNCLASSIF1EO
l J
-shyltmiddot
~ - - - - - -
~-tA~ - middot middotmiddot ~
~j
~ middot----- shy
- -- -middotmiddot - ~ I bull
- - bull -~ bull 1 I gt bull 0 bull bull o 9
- ---middot middotmiddotmiddot- -middot -middot - - ----middot--middot--- ____ -----middot ___________ __ -----~
I
-~
atmospheric drag Using thiamp correlation the control of the
spacecraft to place it in a landing path will be accomplished 1f it
1s COttrolled in such a way as to _place its Keplerian perigee
wtthin a dea1gnated landing corridor This is accomplished by
maneuvers which modiy the approach trajectory until the orbit
relations which may be measured indicate a value of perigee
_ radius rp and velocity vpbull which are within the indicated
landing corridor It is envisioned that such a 1middoteturn problem will
be accomplished by the application of corrections (coarse and
iine) to the return trajectory as follows
-shy1 First corrections are applied at a point sufficiently
disant to assure_that the trajectory will close with the earth such
as to allow fine corrections at a later time This first correction
i rather simple in application and for middotbest results it will be
i J
pe rormed at the greatEgtst pc sible distn shye h om earth in ce bull bullro
conserve fuel Th~gt -1istane iF hmiddottuted oy the accuracy with which 1 Lhe correction can be computed and applied U)
2 The liecond correction adjusts the approach trajeuroctory
c3usmg it to pass through the narrow landing corridor Thi6
corrlction is applied fa1rly close to earth when precision meas1bullreshy
menta of the trajectory are feasible Without the first correction
~ 12 i
- bullbull-bull--bullbullbull bullmiddot-~-- middot-Wbullbull bull _ oO
excessive p r opulsion energy might be required to perforrn the
second correction (t1)
3 The third correction is roquired to convert the approach
orbit f rom one which has 1ts perigee in the chosen landing corridor
to one whleh aetuaUy re-enteu the at moephere and i s recover ed
This will normally be accomplished by retrorocket deceleration
but in some caees an atmospheric - induced d rag could be ued (U)
The accuracy o the guidance r eq uired or landing control is
thoroughly r Pvie wed in a NASA r eport by Chapman (Reference )
The consequences of an inaccurate solution to the re-entry homing
problem are considered to be intolerable therefore the uae o shyan opegt loop solution i e r ejectOltl in favor ol a closed loop guidance
bullIaystcm In the latter eystem fliaht condltionbull are conllauauely I
bulljmonitored and correctioxu applied a10 needed thie syatem r equires__ middot
an accur ate predicllon syatem on bord to orpoundt nons c f
the vehicle Correctionbull may be i1tror 1d through applieatlon o
continuoua thrust or t~ough impuleee ~t aelecteci inteJvals (U)
F Re -Eotry Guidance System
A postulated interplAnetary homing re-entry guidance ~chenu
usmg on-board componclts i1 dcpcted in Fig 4 Meaauremente
of ranae r range rate l and the rate opound change of the Une ol
13
1
TRAJECTORY COMPUTER
middotp ~shyK II t ltmiddot )
I 1
CO~TROLLER
V a in ltjJ
UNCL ASSI FIED
STELLAR TRACKING SYSTEM
tJ GYRO- I NERTIAL r-shy =-1 ~ REFERENCE
1 _
ampVACTUAL
A T TIT UOE CONTROL OF
PITCH AXIS ROLL AXIS
AV rshy--shy- -0
11---shy - g
MPNEUVER PJltOPULSION
FIG 4 ON- BOARD LANDING GUIDANCE SYSTEM FOR INTERPLANETARY VEHICLE
UNCLASSIFIED
- ~ __shy- -----middot ---middot--middot~middot-middotmiddot shy middot ---middotmiddot----shy-shy-middot~-----shy
~
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
____ -middotmiddotmiddot ~ --middotmiddot--middot ----- _ - _
SECTION
INDICATORS OF A RECOVERABLE SATELLITE PROGRAM
freliminary to the launch of an actual recoverable planetary
vehicle will be tests designed to prove the reliability and poundeasishy
bility o equipment for such missions Indicators which would
reflect that the Soviets are pursuing such a program include
I1 Boosted re-entry ballistic missile firings Such
test$ would aubject components and vehicles to the re-entry ~~locitiea anticipated for interplanetary orbits - on the order of
35000-43000 ft aec U) z Test orbit It is possible to launch a recoverable
space probe on a round trip orbit into space and back requiting
only six months (see Fig 1~ The ptbullobe is launched with a
velocity relative to the earth which is normal to the ecliptic
Thus the plane of the reaulting vehicle orh~t Inkes a smiddot ~a~ti~oi
angle with the plane of the ecliptic and the orbit has a line of
nodes through the launching site The other end of the lin of
nodes is through the recovery site wldch is reached six r~onths
later If the same magnitude of velocity were used for tb5s lobbing
shot as is us ed for a zoecoverable interplanetary spalte prob~ the
vehicle would reach the maximum distance of 15 million m llt~s from
1 _
UNCLASSIFIED
-EARTH AT LOB RECOVERY
I
LAUNCH
FIG 1 A lOSSING DEEP SPACE PROSE
UNCLASSI FlED
middot--- _ ---- middotmiddotmiddot- middotmiddotmiddot -shy _____ -----middot-4__lt4 bullbull- bull bullbullbull bull 4 -middotmiddot
SECRET earth The advantage of such a test orbit ia that 1ts short range
allows a cons1derable amount of data on vehicle performance to
be transmitted back to earth Further the use o a mrectio nal
antenna would not be required thus a breakdown in the attitude
control system of the vehu~le could be diagnosed by telemetry
If such a breakdown occurred at the far greater ranges of an
interplanetary probe it might not be diagnosed inasmuch as the
communications channel depends upon the gain oi the dir~ectlonal
antenna pointed at earth (U)
3 Development of additional deep space i racking
stat1ons The precise orbit deternUnation required for recovershy --middot able middotvehicles will result in the need for additional sophisticated
optical and electronic trackmg facilit1es in the USSR (U)
4 Structural heattng Many problems exist concerning
heatlng of snperorbital re-egttly vPhicle a manit ~ing of tlois
field car ieid ~_ om~ -~gtt ~s to Soviet plan11 for recoverable
planetary missions (U)
S For a true interplanetary round tr~p - ~Ulth as the
example oi the earth to Venus surface to earth surface bull a
t~remendouli ma9 s ratio is required opound chemical prrJpellants In
fact with a respectable speciic impulse of 310 secoud2 and a
3
SECRamiddot
~middot-middot-middot- --- ----middot - - ~ - -- ----middot -~ ------middot middot---middot------- -- - ~---middotmiddot-- - - -
SECTION ll
RECOVERY FROM INTERPLANETARY ORBITS
A Introduction
ln any planetary recovery program there are three bas1c
catego1middotie11 of recovery capsules In order of increasing ~ize
weight and complexity they are
o the instrument capsule
the biocapsule
Q the astronaut capsule (U)
The primary reasons for recovering instrumented probes __
include (l) to determine the effect of the space environment on
space-borne equipment (2) to attempt to simplify the equipment
reduce its complexity and hence improve its reliability and (3)
to develop recovery techniques for the benefit of future orbital
glide programs The scientific datg collected in lthe vicinity of
the target plmet will normally have been telemetered ba~k to
earth however a close review of tha actual pack ~glaquo vbullill enhance
the value of the collected information Future exp~imeots will
permit the development of biosatellites with the ass ranee of
regaining the specimens for proper evalu tioo of r~ middot middot~ts
FurthPr a weU-designed space capsule with a low Crmiddotlt may
5
- -- -middotmiddot- middotmiddot - middot ---- middot ~middotmiddotmiddot --middot-middotmiddot middot~middot- middot middot middotmiddotmiddot--middotmiddotmiddotmiddot --~---middot-middot-~----middotmiddotmiddotmiddot------~ middot- middotmiddotmiddot -middotmiddot~ middotmiddot--middotmiddotmiddotmiddot
become for the astronaut what the parachute is to the aviator shy
a chance for survival in case oi failure of the main vehicle Such
a human middot-carryng biocapaule would have to be equipped with
stabilizers jet and aerodynamic to prevent rotation and
tuInbling (U)
B Ballistic Vehicles
Our discussion will be limited to the recovery of pulely ballistic
interplanetary vehicles inasmuch as that wi1l most probably be the
design of all initial vehicles in a space recovery program The
sphere is the present prototype of a ballistic space capsule which -
can be used to advantage for recoverable planetary missions Of
course every syn1metric body at zero angle of attack is also a
nonlifting (ie ballistic) body and could be utilized for the flight -
Fer a sphere the drag coefficient atays close to unity most of the
time and if i middot~ loses litte middotJeight due tn blai-n t gtalhsti-
coeC bull _ient __- bull ~emuna essentially constant (U)CnA
The tleajectory which a typical superorbital ploneuy) ballistic
-e-entry vehicle follows is defined by
Qgt initial re-entry velocity Vi
Ill initial re-entry angle Y
o ballistic coefficient of vehicle (-c2)
middotmiddot - ~middot middot middot middot ~
- -middot-~- bull middot----- ----middot---- - - middot - _- ~--------- ~ --- -T------ - --middot--middot~---- - ___
~ bull ltll bull
-- middot - - bullbull --- middotmiddotmiddotmiddotmiddot _ middot---middot bull- - - _J_ __ -middot
Most re-entry vehicle trajectories are treated as a two-body problem
1nvolvins a central forre 1eld with the assumption of a nonr-otat ing
atmosphere and 7ero thrust S tarting with a ltnown initi al velocity
altitude and angle between the velocity vector and the local horishy
pounde ntal trajec tory parameters dete r mined are velocity alti tude
Ugbt path angle t angential acceleration rate of altitude change and
the geocentric angle - all as unctions of the independent variable i time (see Roeences 13 and 15) Aa can be seen these var iables
wtllllrovide an infinite number of re-entry trajectQries until the
actual vehi cle and mission parame~ere are described As aI r I
1 r
practicd matter re-entry anatee will probably be kept under -10deg
W1th initial velocities on the order of 35000 to 430CO Ct sec (U) middotshyI C Re-Entry CorridorI i Well known is the fact thegtt the re-entry angl o determination is I ~ J quite critical U er~ry is oo -hllow the v~~icle i 1t~htlbulltJ
pierce tht ITIsple~ ~bullbull 1 continue out into space or illto a
geocentric orb1t) on the other hand a too-large entry a ngle yields
heating and structural (deceleration) problems wlllch could adver sely
affect the v$bicle Thi~ aivea rise to the concept of the re-entry
corridor which is defined by an undershoot and overanoot boundary
The corr~dor width w is given a11 the diatance betwcaen the conic
per iaecs of the two boundarieu (ice Fig Z) As h app-nt ro1n
--
- ~-- middot- - middotmiddot middotmiddot--middot middotmiddotmiddotmiddotmiddotmiddot-- -----middot -- ----- -middotmiddot- -middot- _______ ___ _____-------middot- -middot- middot-middot- ---middotmiddot
UNCLASSIFIED
VEHICLE
middot middot
CONiCS
FIG Z LANDING CORRIDOR WIDTH
UNCLASSIFIED 8
_ - - middot middot- -- -~middotmiddot __ _ _ _~ middot middot middot _~-middot __ _-- ~ middotmiddotmiddotmiddotmiddotshy_
I
I l
l -1
f I
r ~-i
the preceltHng discussion the Wldth o ( the corridor w lll be a
unction o entry veloclty entzy angle and ballistic cocliicient
(Liltdrag ratios and modulation metbcxs al so influence w for
nonballistic boche=) Consequently for a g~ven velucle and entry
veloc1ty Lhe corridor may be represented by a range of acceptshy
able entry angles Conversely if the range o acceptable eotry
angles as known the corndor width is determined by calculating
the Keplenan perigees and measuring the dHeren c e between
peri gee alti tude- Corridor width as depoundmed by either w 01 Y
may thereioce be used to s t ipulate the maximum tolerable errors -for a guidance syatem U)
D Space Vehi cl Veloc i tiea
The veloci ti es assoc iated with space miesions are
circular
ell ipse bull
parabolic
hyperbolic
where K famp the gravitattonal parameter a charact eamiddot lc constant
16 3 of the attract iog body M (or earth it io 140752 X ) t I e ecZ)
a nd r 1s th e radial distance from the attrac ti ng focur_ All e arh 1
__ _ _____ _~ middot _ --middotmiddot~-- ~-
satelhtes possess either circula1middot 01 elliptical velocities In a
parabolic orbit the vehicle 1s entire kinetic energy is used up in
overcoming the central bodys entire potential energy between the
in9tantaneous distance and infinity The vehicle therefore has a
velocity of 0 at infinity -that is after escape In a hyperbolic
orb1t the vehicle has more kinetic energy than necessary for
overconung the gravitational potential opound the central body Thereshy
fore even after escape from the body the vehicle has a finite
remaining velocity which is used to change its orbital energy with
respect to the central force field of the middotnext higher order bull namely
the solar field (U
E Re-Entry Maneuvers
The maneuvers that are required to convert the ~yperbolic
approach orbit which develops as the vehicle begins to respond to
the influence o the gravitational filld of i~s ds~natim to an crbit
which leads to 11afe penetl ~middotion of the plbullll~tary atmosphere will _-
now be discussed (see Fig 3) The criteria for a eatisfactory
landing trajectory include the concept of a landing corridor described
above Sale landing paths are correlated with the configuration of
the spacecraft and with the altitude of the Keplerian perigees for
the approach trajectory This is the perigee which would occur if
I the approach trajectory were not perturbed by the effects of
10
- middotshy
--
I
l-- ___ ~-~middot--~----~~--c- ~ ---~ --=-middot~---~--~------middot--- middot middot ~ -- -~-~--~ -~~~ ----- --~~- ~ middot-_
______ _ --- -middot--middot- ---middot- middotmiddot-middotmiddot ---middotmiddot__--- middotmiddot - middot
UNCLASS IFI EO
-middot middotmiddotshy
bull
I i ~
-F~G 3 APPROACH middotANO ltRE-ENTRY TRAJECTORY
UNCLASSIF1EO
l J
-shyltmiddot
~ - - - - - -
~-tA~ - middot middotmiddot ~
~j
~ middot----- shy
- -- -middotmiddot - ~ I bull
- - bull -~ bull 1 I gt bull 0 bull bull o 9
- ---middot middotmiddotmiddot- -middot -middot - - ----middot--middot--- ____ -----middot ___________ __ -----~
I
-~
atmospheric drag Using thiamp correlation the control of the
spacecraft to place it in a landing path will be accomplished 1f it
1s COttrolled in such a way as to _place its Keplerian perigee
wtthin a dea1gnated landing corridor This is accomplished by
maneuvers which modiy the approach trajectory until the orbit
relations which may be measured indicate a value of perigee
_ radius rp and velocity vpbull which are within the indicated
landing corridor It is envisioned that such a 1middoteturn problem will
be accomplished by the application of corrections (coarse and
iine) to the return trajectory as follows
-shy1 First corrections are applied at a point sufficiently
disant to assure_that the trajectory will close with the earth such
as to allow fine corrections at a later time This first correction
i rather simple in application and for middotbest results it will be
i J
pe rormed at the greatEgtst pc sible distn shye h om earth in ce bull bullro
conserve fuel Th~gt -1istane iF hmiddottuted oy the accuracy with which 1 Lhe correction can be computed and applied U)
2 The liecond correction adjusts the approach trajeuroctory
c3usmg it to pass through the narrow landing corridor Thi6
corrlction is applied fa1rly close to earth when precision meas1bullreshy
menta of the trajectory are feasible Without the first correction
~ 12 i
- bullbull-bull--bullbullbull bullmiddot-~-- middot-Wbullbull bull _ oO
excessive p r opulsion energy might be required to perforrn the
second correction (t1)
3 The third correction is roquired to convert the approach
orbit f rom one which has 1ts perigee in the chosen landing corridor
to one whleh aetuaUy re-enteu the at moephere and i s recover ed
This will normally be accomplished by retrorocket deceleration
but in some caees an atmospheric - induced d rag could be ued (U)
The accuracy o the guidance r eq uired or landing control is
thoroughly r Pvie wed in a NASA r eport by Chapman (Reference )
The consequences of an inaccurate solution to the re-entry homing
problem are considered to be intolerable therefore the uae o shyan opegt loop solution i e r ejectOltl in favor ol a closed loop guidance
bullIaystcm In the latter eystem fliaht condltionbull are conllauauely I
bulljmonitored and correctioxu applied a10 needed thie syatem r equires__ middot
an accur ate predicllon syatem on bord to orpoundt nons c f
the vehicle Correctionbull may be i1tror 1d through applieatlon o
continuoua thrust or t~ough impuleee ~t aelecteci inteJvals (U)
F Re -Eotry Guidance System
A postulated interplAnetary homing re-entry guidance ~chenu
usmg on-board componclts i1 dcpcted in Fig 4 Meaauremente
of ranae r range rate l and the rate opound change of the Une ol
13
1
TRAJECTORY COMPUTER
middotp ~shyK II t ltmiddot )
I 1
CO~TROLLER
V a in ltjJ
UNCL ASSI FIED
STELLAR TRACKING SYSTEM
tJ GYRO- I NERTIAL r-shy =-1 ~ REFERENCE
1 _
ampVACTUAL
A T TIT UOE CONTROL OF
PITCH AXIS ROLL AXIS
AV rshy--shy- -0
11---shy - g
MPNEUVER PJltOPULSION
FIG 4 ON- BOARD LANDING GUIDANCE SYSTEM FOR INTERPLANETARY VEHICLE
UNCLASSIFIED
- ~ __shy- -----middot ---middot--middot~middot-middotmiddot shy middot ---middotmiddot----shy-shy-middot~-----shy
~
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
UNCLASSIFIED
-EARTH AT LOB RECOVERY
I
LAUNCH
FIG 1 A lOSSING DEEP SPACE PROSE
UNCLASSI FlED
middot--- _ ---- middotmiddotmiddot- middotmiddotmiddot -shy _____ -----middot-4__lt4 bullbull- bull bullbullbull bull 4 -middotmiddot
SECRET earth The advantage of such a test orbit ia that 1ts short range
allows a cons1derable amount of data on vehicle performance to
be transmitted back to earth Further the use o a mrectio nal
antenna would not be required thus a breakdown in the attitude
control system of the vehu~le could be diagnosed by telemetry
If such a breakdown occurred at the far greater ranges of an
interplanetary probe it might not be diagnosed inasmuch as the
communications channel depends upon the gain oi the dir~ectlonal
antenna pointed at earth (U)
3 Development of additional deep space i racking
stat1ons The precise orbit deternUnation required for recovershy --middot able middotvehicles will result in the need for additional sophisticated
optical and electronic trackmg facilit1es in the USSR (U)
4 Structural heattng Many problems exist concerning
heatlng of snperorbital re-egttly vPhicle a manit ~ing of tlois
field car ieid ~_ om~ -~gtt ~s to Soviet plan11 for recoverable
planetary missions (U)
S For a true interplanetary round tr~p - ~Ulth as the
example oi the earth to Venus surface to earth surface bull a
t~remendouli ma9 s ratio is required opound chemical prrJpellants In
fact with a respectable speciic impulse of 310 secoud2 and a
3
SECRamiddot
~middot-middot-middot- --- ----middot - - ~ - -- ----middot -~ ------middot middot---middot------- -- - ~---middotmiddot-- - - -
SECTION ll
RECOVERY FROM INTERPLANETARY ORBITS
A Introduction
ln any planetary recovery program there are three bas1c
catego1middotie11 of recovery capsules In order of increasing ~ize
weight and complexity they are
o the instrument capsule
the biocapsule
Q the astronaut capsule (U)
The primary reasons for recovering instrumented probes __
include (l) to determine the effect of the space environment on
space-borne equipment (2) to attempt to simplify the equipment
reduce its complexity and hence improve its reliability and (3)
to develop recovery techniques for the benefit of future orbital
glide programs The scientific datg collected in lthe vicinity of
the target plmet will normally have been telemetered ba~k to
earth however a close review of tha actual pack ~glaquo vbullill enhance
the value of the collected information Future exp~imeots will
permit the development of biosatellites with the ass ranee of
regaining the specimens for proper evalu tioo of r~ middot middot~ts
FurthPr a weU-designed space capsule with a low Crmiddotlt may
5
- -- -middotmiddot- middotmiddot - middot ---- middot ~middotmiddotmiddot --middot-middotmiddot middot~middot- middot middot middotmiddotmiddot--middotmiddotmiddotmiddot --~---middot-middot-~----middotmiddotmiddotmiddot------~ middot- middotmiddotmiddot -middotmiddot~ middotmiddot--middotmiddotmiddotmiddot
become for the astronaut what the parachute is to the aviator shy
a chance for survival in case oi failure of the main vehicle Such
a human middot-carryng biocapaule would have to be equipped with
stabilizers jet and aerodynamic to prevent rotation and
tuInbling (U)
B Ballistic Vehicles
Our discussion will be limited to the recovery of pulely ballistic
interplanetary vehicles inasmuch as that wi1l most probably be the
design of all initial vehicles in a space recovery program The
sphere is the present prototype of a ballistic space capsule which -
can be used to advantage for recoverable planetary missions Of
course every syn1metric body at zero angle of attack is also a
nonlifting (ie ballistic) body and could be utilized for the flight -
Fer a sphere the drag coefficient atays close to unity most of the
time and if i middot~ loses litte middotJeight due tn blai-n t gtalhsti-
coeC bull _ient __- bull ~emuna essentially constant (U)CnA
The tleajectory which a typical superorbital ploneuy) ballistic
-e-entry vehicle follows is defined by
Qgt initial re-entry velocity Vi
Ill initial re-entry angle Y
o ballistic coefficient of vehicle (-c2)
middotmiddot - ~middot middot middot middot ~
- -middot-~- bull middot----- ----middot---- - - middot - _- ~--------- ~ --- -T------ - --middot--middot~---- - ___
~ bull ltll bull
-- middot - - bullbull --- middotmiddotmiddotmiddotmiddot _ middot---middot bull- - - _J_ __ -middot
Most re-entry vehicle trajectories are treated as a two-body problem
1nvolvins a central forre 1eld with the assumption of a nonr-otat ing
atmosphere and 7ero thrust S tarting with a ltnown initi al velocity
altitude and angle between the velocity vector and the local horishy
pounde ntal trajec tory parameters dete r mined are velocity alti tude
Ugbt path angle t angential acceleration rate of altitude change and
the geocentric angle - all as unctions of the independent variable i time (see Roeences 13 and 15) Aa can be seen these var iables
wtllllrovide an infinite number of re-entry trajectQries until the
actual vehi cle and mission parame~ere are described As aI r I
1 r
practicd matter re-entry anatee will probably be kept under -10deg
W1th initial velocities on the order of 35000 to 430CO Ct sec (U) middotshyI C Re-Entry CorridorI i Well known is the fact thegtt the re-entry angl o determination is I ~ J quite critical U er~ry is oo -hllow the v~~icle i 1t~htlbulltJ
pierce tht ITIsple~ ~bullbull 1 continue out into space or illto a
geocentric orb1t) on the other hand a too-large entry a ngle yields
heating and structural (deceleration) problems wlllch could adver sely
affect the v$bicle Thi~ aivea rise to the concept of the re-entry
corridor which is defined by an undershoot and overanoot boundary
The corr~dor width w is given a11 the diatance betwcaen the conic
per iaecs of the two boundarieu (ice Fig Z) As h app-nt ro1n
--
- ~-- middot- - middotmiddot middotmiddot--middot middotmiddotmiddotmiddotmiddotmiddot-- -----middot -- ----- -middotmiddot- -middot- _______ ___ _____-------middot- -middot- middot-middot- ---middotmiddot
UNCLASSIFIED
VEHICLE
middot middot
CONiCS
FIG Z LANDING CORRIDOR WIDTH
UNCLASSIFIED 8
_ - - middot middot- -- -~middotmiddot __ _ _ _~ middot middot middot _~-middot __ _-- ~ middotmiddotmiddotmiddotmiddotshy_
I
I l
l -1
f I
r ~-i
the preceltHng discussion the Wldth o ( the corridor w lll be a
unction o entry veloclty entzy angle and ballistic cocliicient
(Liltdrag ratios and modulation metbcxs al so influence w for
nonballistic boche=) Consequently for a g~ven velucle and entry
veloc1ty Lhe corridor may be represented by a range of acceptshy
able entry angles Conversely if the range o acceptable eotry
angles as known the corndor width is determined by calculating
the Keplenan perigees and measuring the dHeren c e between
peri gee alti tude- Corridor width as depoundmed by either w 01 Y
may thereioce be used to s t ipulate the maximum tolerable errors -for a guidance syatem U)
D Space Vehi cl Veloc i tiea
The veloci ti es assoc iated with space miesions are
circular
ell ipse bull
parabolic
hyperbolic
where K famp the gravitattonal parameter a charact eamiddot lc constant
16 3 of the attract iog body M (or earth it io 140752 X ) t I e ecZ)
a nd r 1s th e radial distance from the attrac ti ng focur_ All e arh 1
__ _ _____ _~ middot _ --middotmiddot~-- ~-
satelhtes possess either circula1middot 01 elliptical velocities In a
parabolic orbit the vehicle 1s entire kinetic energy is used up in
overcoming the central bodys entire potential energy between the
in9tantaneous distance and infinity The vehicle therefore has a
velocity of 0 at infinity -that is after escape In a hyperbolic
orb1t the vehicle has more kinetic energy than necessary for
overconung the gravitational potential opound the central body Thereshy
fore even after escape from the body the vehicle has a finite
remaining velocity which is used to change its orbital energy with
respect to the central force field of the middotnext higher order bull namely
the solar field (U
E Re-Entry Maneuvers
The maneuvers that are required to convert the ~yperbolic
approach orbit which develops as the vehicle begins to respond to
the influence o the gravitational filld of i~s ds~natim to an crbit
which leads to 11afe penetl ~middotion of the plbullll~tary atmosphere will _-
now be discussed (see Fig 3) The criteria for a eatisfactory
landing trajectory include the concept of a landing corridor described
above Sale landing paths are correlated with the configuration of
the spacecraft and with the altitude of the Keplerian perigees for
the approach trajectory This is the perigee which would occur if
I the approach trajectory were not perturbed by the effects of
10
- middotshy
--
I
l-- ___ ~-~middot--~----~~--c- ~ ---~ --=-middot~---~--~------middot--- middot middot ~ -- -~-~--~ -~~~ ----- --~~- ~ middot-_
______ _ --- -middot--middot- ---middot- middotmiddot-middotmiddot ---middotmiddot__--- middotmiddot - middot
UNCLASS IFI EO
-middot middotmiddotshy
bull
I i ~
-F~G 3 APPROACH middotANO ltRE-ENTRY TRAJECTORY
UNCLASSIF1EO
l J
-shyltmiddot
~ - - - - - -
~-tA~ - middot middotmiddot ~
~j
~ middot----- shy
- -- -middotmiddot - ~ I bull
- - bull -~ bull 1 I gt bull 0 bull bull o 9
- ---middot middotmiddotmiddot- -middot -middot - - ----middot--middot--- ____ -----middot ___________ __ -----~
I
-~
atmospheric drag Using thiamp correlation the control of the
spacecraft to place it in a landing path will be accomplished 1f it
1s COttrolled in such a way as to _place its Keplerian perigee
wtthin a dea1gnated landing corridor This is accomplished by
maneuvers which modiy the approach trajectory until the orbit
relations which may be measured indicate a value of perigee
_ radius rp and velocity vpbull which are within the indicated
landing corridor It is envisioned that such a 1middoteturn problem will
be accomplished by the application of corrections (coarse and
iine) to the return trajectory as follows
-shy1 First corrections are applied at a point sufficiently
disant to assure_that the trajectory will close with the earth such
as to allow fine corrections at a later time This first correction
i rather simple in application and for middotbest results it will be
i J
pe rormed at the greatEgtst pc sible distn shye h om earth in ce bull bullro
conserve fuel Th~gt -1istane iF hmiddottuted oy the accuracy with which 1 Lhe correction can be computed and applied U)
2 The liecond correction adjusts the approach trajeuroctory
c3usmg it to pass through the narrow landing corridor Thi6
corrlction is applied fa1rly close to earth when precision meas1bullreshy
menta of the trajectory are feasible Without the first correction
~ 12 i
- bullbull-bull--bullbullbull bullmiddot-~-- middot-Wbullbull bull _ oO
excessive p r opulsion energy might be required to perforrn the
second correction (t1)
3 The third correction is roquired to convert the approach
orbit f rom one which has 1ts perigee in the chosen landing corridor
to one whleh aetuaUy re-enteu the at moephere and i s recover ed
This will normally be accomplished by retrorocket deceleration
but in some caees an atmospheric - induced d rag could be ued (U)
The accuracy o the guidance r eq uired or landing control is
thoroughly r Pvie wed in a NASA r eport by Chapman (Reference )
The consequences of an inaccurate solution to the re-entry homing
problem are considered to be intolerable therefore the uae o shyan opegt loop solution i e r ejectOltl in favor ol a closed loop guidance
bullIaystcm In the latter eystem fliaht condltionbull are conllauauely I
bulljmonitored and correctioxu applied a10 needed thie syatem r equires__ middot
an accur ate predicllon syatem on bord to orpoundt nons c f
the vehicle Correctionbull may be i1tror 1d through applieatlon o
continuoua thrust or t~ough impuleee ~t aelecteci inteJvals (U)
F Re -Eotry Guidance System
A postulated interplAnetary homing re-entry guidance ~chenu
usmg on-board componclts i1 dcpcted in Fig 4 Meaauremente
of ranae r range rate l and the rate opound change of the Une ol
13
1
TRAJECTORY COMPUTER
middotp ~shyK II t ltmiddot )
I 1
CO~TROLLER
V a in ltjJ
UNCL ASSI FIED
STELLAR TRACKING SYSTEM
tJ GYRO- I NERTIAL r-shy =-1 ~ REFERENCE
1 _
ampVACTUAL
A T TIT UOE CONTROL OF
PITCH AXIS ROLL AXIS
AV rshy--shy- -0
11---shy - g
MPNEUVER PJltOPULSION
FIG 4 ON- BOARD LANDING GUIDANCE SYSTEM FOR INTERPLANETARY VEHICLE
UNCLASSIFIED
- ~ __shy- -----middot ---middot--middot~middot-middotmiddot shy middot ---middotmiddot----shy-shy-middot~-----shy
~
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
SECRET earth The advantage of such a test orbit ia that 1ts short range
allows a cons1derable amount of data on vehicle performance to
be transmitted back to earth Further the use o a mrectio nal
antenna would not be required thus a breakdown in the attitude
control system of the vehu~le could be diagnosed by telemetry
If such a breakdown occurred at the far greater ranges of an
interplanetary probe it might not be diagnosed inasmuch as the
communications channel depends upon the gain oi the dir~ectlonal
antenna pointed at earth (U)
3 Development of additional deep space i racking
stat1ons The precise orbit deternUnation required for recovershy --middot able middotvehicles will result in the need for additional sophisticated
optical and electronic trackmg facilit1es in the USSR (U)
4 Structural heattng Many problems exist concerning
heatlng of snperorbital re-egttly vPhicle a manit ~ing of tlois
field car ieid ~_ om~ -~gtt ~s to Soviet plan11 for recoverable
planetary missions (U)
S For a true interplanetary round tr~p - ~Ulth as the
example oi the earth to Venus surface to earth surface bull a
t~remendouli ma9 s ratio is required opound chemical prrJpellants In
fact with a respectable speciic impulse of 310 secoud2 and a
3
SECRamiddot
~middot-middot-middot- --- ----middot - - ~ - -- ----middot -~ ------middot middot---middot------- -- - ~---middotmiddot-- - - -
SECTION ll
RECOVERY FROM INTERPLANETARY ORBITS
A Introduction
ln any planetary recovery program there are three bas1c
catego1middotie11 of recovery capsules In order of increasing ~ize
weight and complexity they are
o the instrument capsule
the biocapsule
Q the astronaut capsule (U)
The primary reasons for recovering instrumented probes __
include (l) to determine the effect of the space environment on
space-borne equipment (2) to attempt to simplify the equipment
reduce its complexity and hence improve its reliability and (3)
to develop recovery techniques for the benefit of future orbital
glide programs The scientific datg collected in lthe vicinity of
the target plmet will normally have been telemetered ba~k to
earth however a close review of tha actual pack ~glaquo vbullill enhance
the value of the collected information Future exp~imeots will
permit the development of biosatellites with the ass ranee of
regaining the specimens for proper evalu tioo of r~ middot middot~ts
FurthPr a weU-designed space capsule with a low Crmiddotlt may
5
- -- -middotmiddot- middotmiddot - middot ---- middot ~middotmiddotmiddot --middot-middotmiddot middot~middot- middot middot middotmiddotmiddot--middotmiddotmiddotmiddot --~---middot-middot-~----middotmiddotmiddotmiddot------~ middot- middotmiddotmiddot -middotmiddot~ middotmiddot--middotmiddotmiddotmiddot
become for the astronaut what the parachute is to the aviator shy
a chance for survival in case oi failure of the main vehicle Such
a human middot-carryng biocapaule would have to be equipped with
stabilizers jet and aerodynamic to prevent rotation and
tuInbling (U)
B Ballistic Vehicles
Our discussion will be limited to the recovery of pulely ballistic
interplanetary vehicles inasmuch as that wi1l most probably be the
design of all initial vehicles in a space recovery program The
sphere is the present prototype of a ballistic space capsule which -
can be used to advantage for recoverable planetary missions Of
course every syn1metric body at zero angle of attack is also a
nonlifting (ie ballistic) body and could be utilized for the flight -
Fer a sphere the drag coefficient atays close to unity most of the
time and if i middot~ loses litte middotJeight due tn blai-n t gtalhsti-
coeC bull _ient __- bull ~emuna essentially constant (U)CnA
The tleajectory which a typical superorbital ploneuy) ballistic
-e-entry vehicle follows is defined by
Qgt initial re-entry velocity Vi
Ill initial re-entry angle Y
o ballistic coefficient of vehicle (-c2)
middotmiddot - ~middot middot middot middot ~
- -middot-~- bull middot----- ----middot---- - - middot - _- ~--------- ~ --- -T------ - --middot--middot~---- - ___
~ bull ltll bull
-- middot - - bullbull --- middotmiddotmiddotmiddotmiddot _ middot---middot bull- - - _J_ __ -middot
Most re-entry vehicle trajectories are treated as a two-body problem
1nvolvins a central forre 1eld with the assumption of a nonr-otat ing
atmosphere and 7ero thrust S tarting with a ltnown initi al velocity
altitude and angle between the velocity vector and the local horishy
pounde ntal trajec tory parameters dete r mined are velocity alti tude
Ugbt path angle t angential acceleration rate of altitude change and
the geocentric angle - all as unctions of the independent variable i time (see Roeences 13 and 15) Aa can be seen these var iables
wtllllrovide an infinite number of re-entry trajectQries until the
actual vehi cle and mission parame~ere are described As aI r I
1 r
practicd matter re-entry anatee will probably be kept under -10deg
W1th initial velocities on the order of 35000 to 430CO Ct sec (U) middotshyI C Re-Entry CorridorI i Well known is the fact thegtt the re-entry angl o determination is I ~ J quite critical U er~ry is oo -hllow the v~~icle i 1t~htlbulltJ
pierce tht ITIsple~ ~bullbull 1 continue out into space or illto a
geocentric orb1t) on the other hand a too-large entry a ngle yields
heating and structural (deceleration) problems wlllch could adver sely
affect the v$bicle Thi~ aivea rise to the concept of the re-entry
corridor which is defined by an undershoot and overanoot boundary
The corr~dor width w is given a11 the diatance betwcaen the conic
per iaecs of the two boundarieu (ice Fig Z) As h app-nt ro1n
--
- ~-- middot- - middotmiddot middotmiddot--middot middotmiddotmiddotmiddotmiddotmiddot-- -----middot -- ----- -middotmiddot- -middot- _______ ___ _____-------middot- -middot- middot-middot- ---middotmiddot
UNCLASSIFIED
VEHICLE
middot middot
CONiCS
FIG Z LANDING CORRIDOR WIDTH
UNCLASSIFIED 8
_ - - middot middot- -- -~middotmiddot __ _ _ _~ middot middot middot _~-middot __ _-- ~ middotmiddotmiddotmiddotmiddotshy_
I
I l
l -1
f I
r ~-i
the preceltHng discussion the Wldth o ( the corridor w lll be a
unction o entry veloclty entzy angle and ballistic cocliicient
(Liltdrag ratios and modulation metbcxs al so influence w for
nonballistic boche=) Consequently for a g~ven velucle and entry
veloc1ty Lhe corridor may be represented by a range of acceptshy
able entry angles Conversely if the range o acceptable eotry
angles as known the corndor width is determined by calculating
the Keplenan perigees and measuring the dHeren c e between
peri gee alti tude- Corridor width as depoundmed by either w 01 Y
may thereioce be used to s t ipulate the maximum tolerable errors -for a guidance syatem U)
D Space Vehi cl Veloc i tiea
The veloci ti es assoc iated with space miesions are
circular
ell ipse bull
parabolic
hyperbolic
where K famp the gravitattonal parameter a charact eamiddot lc constant
16 3 of the attract iog body M (or earth it io 140752 X ) t I e ecZ)
a nd r 1s th e radial distance from the attrac ti ng focur_ All e arh 1
__ _ _____ _~ middot _ --middotmiddot~-- ~-
satelhtes possess either circula1middot 01 elliptical velocities In a
parabolic orbit the vehicle 1s entire kinetic energy is used up in
overcoming the central bodys entire potential energy between the
in9tantaneous distance and infinity The vehicle therefore has a
velocity of 0 at infinity -that is after escape In a hyperbolic
orb1t the vehicle has more kinetic energy than necessary for
overconung the gravitational potential opound the central body Thereshy
fore even after escape from the body the vehicle has a finite
remaining velocity which is used to change its orbital energy with
respect to the central force field of the middotnext higher order bull namely
the solar field (U
E Re-Entry Maneuvers
The maneuvers that are required to convert the ~yperbolic
approach orbit which develops as the vehicle begins to respond to
the influence o the gravitational filld of i~s ds~natim to an crbit
which leads to 11afe penetl ~middotion of the plbullll~tary atmosphere will _-
now be discussed (see Fig 3) The criteria for a eatisfactory
landing trajectory include the concept of a landing corridor described
above Sale landing paths are correlated with the configuration of
the spacecraft and with the altitude of the Keplerian perigees for
the approach trajectory This is the perigee which would occur if
I the approach trajectory were not perturbed by the effects of
10
- middotshy
--
I
l-- ___ ~-~middot--~----~~--c- ~ ---~ --=-middot~---~--~------middot--- middot middot ~ -- -~-~--~ -~~~ ----- --~~- ~ middot-_
______ _ --- -middot--middot- ---middot- middotmiddot-middotmiddot ---middotmiddot__--- middotmiddot - middot
UNCLASS IFI EO
-middot middotmiddotshy
bull
I i ~
-F~G 3 APPROACH middotANO ltRE-ENTRY TRAJECTORY
UNCLASSIF1EO
l J
-shyltmiddot
~ - - - - - -
~-tA~ - middot middotmiddot ~
~j
~ middot----- shy
- -- -middotmiddot - ~ I bull
- - bull -~ bull 1 I gt bull 0 bull bull o 9
- ---middot middotmiddotmiddot- -middot -middot - - ----middot--middot--- ____ -----middot ___________ __ -----~
I
-~
atmospheric drag Using thiamp correlation the control of the
spacecraft to place it in a landing path will be accomplished 1f it
1s COttrolled in such a way as to _place its Keplerian perigee
wtthin a dea1gnated landing corridor This is accomplished by
maneuvers which modiy the approach trajectory until the orbit
relations which may be measured indicate a value of perigee
_ radius rp and velocity vpbull which are within the indicated
landing corridor It is envisioned that such a 1middoteturn problem will
be accomplished by the application of corrections (coarse and
iine) to the return trajectory as follows
-shy1 First corrections are applied at a point sufficiently
disant to assure_that the trajectory will close with the earth such
as to allow fine corrections at a later time This first correction
i rather simple in application and for middotbest results it will be
i J
pe rormed at the greatEgtst pc sible distn shye h om earth in ce bull bullro
conserve fuel Th~gt -1istane iF hmiddottuted oy the accuracy with which 1 Lhe correction can be computed and applied U)
2 The liecond correction adjusts the approach trajeuroctory
c3usmg it to pass through the narrow landing corridor Thi6
corrlction is applied fa1rly close to earth when precision meas1bullreshy
menta of the trajectory are feasible Without the first correction
~ 12 i
- bullbull-bull--bullbullbull bullmiddot-~-- middot-Wbullbull bull _ oO
excessive p r opulsion energy might be required to perforrn the
second correction (t1)
3 The third correction is roquired to convert the approach
orbit f rom one which has 1ts perigee in the chosen landing corridor
to one whleh aetuaUy re-enteu the at moephere and i s recover ed
This will normally be accomplished by retrorocket deceleration
but in some caees an atmospheric - induced d rag could be ued (U)
The accuracy o the guidance r eq uired or landing control is
thoroughly r Pvie wed in a NASA r eport by Chapman (Reference )
The consequences of an inaccurate solution to the re-entry homing
problem are considered to be intolerable therefore the uae o shyan opegt loop solution i e r ejectOltl in favor ol a closed loop guidance
bullIaystcm In the latter eystem fliaht condltionbull are conllauauely I
bulljmonitored and correctioxu applied a10 needed thie syatem r equires__ middot
an accur ate predicllon syatem on bord to orpoundt nons c f
the vehicle Correctionbull may be i1tror 1d through applieatlon o
continuoua thrust or t~ough impuleee ~t aelecteci inteJvals (U)
F Re -Eotry Guidance System
A postulated interplAnetary homing re-entry guidance ~chenu
usmg on-board componclts i1 dcpcted in Fig 4 Meaauremente
of ranae r range rate l and the rate opound change of the Une ol
13
1
TRAJECTORY COMPUTER
middotp ~shyK II t ltmiddot )
I 1
CO~TROLLER
V a in ltjJ
UNCL ASSI FIED
STELLAR TRACKING SYSTEM
tJ GYRO- I NERTIAL r-shy =-1 ~ REFERENCE
1 _
ampVACTUAL
A T TIT UOE CONTROL OF
PITCH AXIS ROLL AXIS
AV rshy--shy- -0
11---shy - g
MPNEUVER PJltOPULSION
FIG 4 ON- BOARD LANDING GUIDANCE SYSTEM FOR INTERPLANETARY VEHICLE
UNCLASSIFIED
- ~ __shy- -----middot ---middot--middot~middot-middotmiddot shy middot ---middotmiddot----shy-shy-middot~-----shy
~
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
~middot-middot-middot- --- ----middot - - ~ - -- ----middot -~ ------middot middot---middot------- -- - ~---middotmiddot-- - - -
SECTION ll
RECOVERY FROM INTERPLANETARY ORBITS
A Introduction
ln any planetary recovery program there are three bas1c
catego1middotie11 of recovery capsules In order of increasing ~ize
weight and complexity they are
o the instrument capsule
the biocapsule
Q the astronaut capsule (U)
The primary reasons for recovering instrumented probes __
include (l) to determine the effect of the space environment on
space-borne equipment (2) to attempt to simplify the equipment
reduce its complexity and hence improve its reliability and (3)
to develop recovery techniques for the benefit of future orbital
glide programs The scientific datg collected in lthe vicinity of
the target plmet will normally have been telemetered ba~k to
earth however a close review of tha actual pack ~glaquo vbullill enhance
the value of the collected information Future exp~imeots will
permit the development of biosatellites with the ass ranee of
regaining the specimens for proper evalu tioo of r~ middot middot~ts
FurthPr a weU-designed space capsule with a low Crmiddotlt may
5
- -- -middotmiddot- middotmiddot - middot ---- middot ~middotmiddotmiddot --middot-middotmiddot middot~middot- middot middot middotmiddotmiddot--middotmiddotmiddotmiddot --~---middot-middot-~----middotmiddotmiddotmiddot------~ middot- middotmiddotmiddot -middotmiddot~ middotmiddot--middotmiddotmiddotmiddot
become for the astronaut what the parachute is to the aviator shy
a chance for survival in case oi failure of the main vehicle Such
a human middot-carryng biocapaule would have to be equipped with
stabilizers jet and aerodynamic to prevent rotation and
tuInbling (U)
B Ballistic Vehicles
Our discussion will be limited to the recovery of pulely ballistic
interplanetary vehicles inasmuch as that wi1l most probably be the
design of all initial vehicles in a space recovery program The
sphere is the present prototype of a ballistic space capsule which -
can be used to advantage for recoverable planetary missions Of
course every syn1metric body at zero angle of attack is also a
nonlifting (ie ballistic) body and could be utilized for the flight -
Fer a sphere the drag coefficient atays close to unity most of the
time and if i middot~ loses litte middotJeight due tn blai-n t gtalhsti-
coeC bull _ient __- bull ~emuna essentially constant (U)CnA
The tleajectory which a typical superorbital ploneuy) ballistic
-e-entry vehicle follows is defined by
Qgt initial re-entry velocity Vi
Ill initial re-entry angle Y
o ballistic coefficient of vehicle (-c2)
middotmiddot - ~middot middot middot middot ~
- -middot-~- bull middot----- ----middot---- - - middot - _- ~--------- ~ --- -T------ - --middot--middot~---- - ___
~ bull ltll bull
-- middot - - bullbull --- middotmiddotmiddotmiddotmiddot _ middot---middot bull- - - _J_ __ -middot
Most re-entry vehicle trajectories are treated as a two-body problem
1nvolvins a central forre 1eld with the assumption of a nonr-otat ing
atmosphere and 7ero thrust S tarting with a ltnown initi al velocity
altitude and angle between the velocity vector and the local horishy
pounde ntal trajec tory parameters dete r mined are velocity alti tude
Ugbt path angle t angential acceleration rate of altitude change and
the geocentric angle - all as unctions of the independent variable i time (see Roeences 13 and 15) Aa can be seen these var iables
wtllllrovide an infinite number of re-entry trajectQries until the
actual vehi cle and mission parame~ere are described As aI r I
1 r
practicd matter re-entry anatee will probably be kept under -10deg
W1th initial velocities on the order of 35000 to 430CO Ct sec (U) middotshyI C Re-Entry CorridorI i Well known is the fact thegtt the re-entry angl o determination is I ~ J quite critical U er~ry is oo -hllow the v~~icle i 1t~htlbulltJ
pierce tht ITIsple~ ~bullbull 1 continue out into space or illto a
geocentric orb1t) on the other hand a too-large entry a ngle yields
heating and structural (deceleration) problems wlllch could adver sely
affect the v$bicle Thi~ aivea rise to the concept of the re-entry
corridor which is defined by an undershoot and overanoot boundary
The corr~dor width w is given a11 the diatance betwcaen the conic
per iaecs of the two boundarieu (ice Fig Z) As h app-nt ro1n
--
- ~-- middot- - middotmiddot middotmiddot--middot middotmiddotmiddotmiddotmiddotmiddot-- -----middot -- ----- -middotmiddot- -middot- _______ ___ _____-------middot- -middot- middot-middot- ---middotmiddot
UNCLASSIFIED
VEHICLE
middot middot
CONiCS
FIG Z LANDING CORRIDOR WIDTH
UNCLASSIFIED 8
_ - - middot middot- -- -~middotmiddot __ _ _ _~ middot middot middot _~-middot __ _-- ~ middotmiddotmiddotmiddotmiddotshy_
I
I l
l -1
f I
r ~-i
the preceltHng discussion the Wldth o ( the corridor w lll be a
unction o entry veloclty entzy angle and ballistic cocliicient
(Liltdrag ratios and modulation metbcxs al so influence w for
nonballistic boche=) Consequently for a g~ven velucle and entry
veloc1ty Lhe corridor may be represented by a range of acceptshy
able entry angles Conversely if the range o acceptable eotry
angles as known the corndor width is determined by calculating
the Keplenan perigees and measuring the dHeren c e between
peri gee alti tude- Corridor width as depoundmed by either w 01 Y
may thereioce be used to s t ipulate the maximum tolerable errors -for a guidance syatem U)
D Space Vehi cl Veloc i tiea
The veloci ti es assoc iated with space miesions are
circular
ell ipse bull
parabolic
hyperbolic
where K famp the gravitattonal parameter a charact eamiddot lc constant
16 3 of the attract iog body M (or earth it io 140752 X ) t I e ecZ)
a nd r 1s th e radial distance from the attrac ti ng focur_ All e arh 1
__ _ _____ _~ middot _ --middotmiddot~-- ~-
satelhtes possess either circula1middot 01 elliptical velocities In a
parabolic orbit the vehicle 1s entire kinetic energy is used up in
overcoming the central bodys entire potential energy between the
in9tantaneous distance and infinity The vehicle therefore has a
velocity of 0 at infinity -that is after escape In a hyperbolic
orb1t the vehicle has more kinetic energy than necessary for
overconung the gravitational potential opound the central body Thereshy
fore even after escape from the body the vehicle has a finite
remaining velocity which is used to change its orbital energy with
respect to the central force field of the middotnext higher order bull namely
the solar field (U
E Re-Entry Maneuvers
The maneuvers that are required to convert the ~yperbolic
approach orbit which develops as the vehicle begins to respond to
the influence o the gravitational filld of i~s ds~natim to an crbit
which leads to 11afe penetl ~middotion of the plbullll~tary atmosphere will _-
now be discussed (see Fig 3) The criteria for a eatisfactory
landing trajectory include the concept of a landing corridor described
above Sale landing paths are correlated with the configuration of
the spacecraft and with the altitude of the Keplerian perigees for
the approach trajectory This is the perigee which would occur if
I the approach trajectory were not perturbed by the effects of
10
- middotshy
--
I
l-- ___ ~-~middot--~----~~--c- ~ ---~ --=-middot~---~--~------middot--- middot middot ~ -- -~-~--~ -~~~ ----- --~~- ~ middot-_
______ _ --- -middot--middot- ---middot- middotmiddot-middotmiddot ---middotmiddot__--- middotmiddot - middot
UNCLASS IFI EO
-middot middotmiddotshy
bull
I i ~
-F~G 3 APPROACH middotANO ltRE-ENTRY TRAJECTORY
UNCLASSIF1EO
l J
-shyltmiddot
~ - - - - - -
~-tA~ - middot middotmiddot ~
~j
~ middot----- shy
- -- -middotmiddot - ~ I bull
- - bull -~ bull 1 I gt bull 0 bull bull o 9
- ---middot middotmiddotmiddot- -middot -middot - - ----middot--middot--- ____ -----middot ___________ __ -----~
I
-~
atmospheric drag Using thiamp correlation the control of the
spacecraft to place it in a landing path will be accomplished 1f it
1s COttrolled in such a way as to _place its Keplerian perigee
wtthin a dea1gnated landing corridor This is accomplished by
maneuvers which modiy the approach trajectory until the orbit
relations which may be measured indicate a value of perigee
_ radius rp and velocity vpbull which are within the indicated
landing corridor It is envisioned that such a 1middoteturn problem will
be accomplished by the application of corrections (coarse and
iine) to the return trajectory as follows
-shy1 First corrections are applied at a point sufficiently
disant to assure_that the trajectory will close with the earth such
as to allow fine corrections at a later time This first correction
i rather simple in application and for middotbest results it will be
i J
pe rormed at the greatEgtst pc sible distn shye h om earth in ce bull bullro
conserve fuel Th~gt -1istane iF hmiddottuted oy the accuracy with which 1 Lhe correction can be computed and applied U)
2 The liecond correction adjusts the approach trajeuroctory
c3usmg it to pass through the narrow landing corridor Thi6
corrlction is applied fa1rly close to earth when precision meas1bullreshy
menta of the trajectory are feasible Without the first correction
~ 12 i
- bullbull-bull--bullbullbull bullmiddot-~-- middot-Wbullbull bull _ oO
excessive p r opulsion energy might be required to perforrn the
second correction (t1)
3 The third correction is roquired to convert the approach
orbit f rom one which has 1ts perigee in the chosen landing corridor
to one whleh aetuaUy re-enteu the at moephere and i s recover ed
This will normally be accomplished by retrorocket deceleration
but in some caees an atmospheric - induced d rag could be ued (U)
The accuracy o the guidance r eq uired or landing control is
thoroughly r Pvie wed in a NASA r eport by Chapman (Reference )
The consequences of an inaccurate solution to the re-entry homing
problem are considered to be intolerable therefore the uae o shyan opegt loop solution i e r ejectOltl in favor ol a closed loop guidance
bullIaystcm In the latter eystem fliaht condltionbull are conllauauely I
bulljmonitored and correctioxu applied a10 needed thie syatem r equires__ middot
an accur ate predicllon syatem on bord to orpoundt nons c f
the vehicle Correctionbull may be i1tror 1d through applieatlon o
continuoua thrust or t~ough impuleee ~t aelecteci inteJvals (U)
F Re -Eotry Guidance System
A postulated interplAnetary homing re-entry guidance ~chenu
usmg on-board componclts i1 dcpcted in Fig 4 Meaauremente
of ranae r range rate l and the rate opound change of the Une ol
13
1
TRAJECTORY COMPUTER
middotp ~shyK II t ltmiddot )
I 1
CO~TROLLER
V a in ltjJ
UNCL ASSI FIED
STELLAR TRACKING SYSTEM
tJ GYRO- I NERTIAL r-shy =-1 ~ REFERENCE
1 _
ampVACTUAL
A T TIT UOE CONTROL OF
PITCH AXIS ROLL AXIS
AV rshy--shy- -0
11---shy - g
MPNEUVER PJltOPULSION
FIG 4 ON- BOARD LANDING GUIDANCE SYSTEM FOR INTERPLANETARY VEHICLE
UNCLASSIFIED
- ~ __shy- -----middot ---middot--middot~middot-middotmiddot shy middot ---middotmiddot----shy-shy-middot~-----shy
~
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
- -- -middotmiddot- middotmiddot - middot ---- middot ~middotmiddotmiddot --middot-middotmiddot middot~middot- middot middot middotmiddotmiddot--middotmiddotmiddotmiddot --~---middot-middot-~----middotmiddotmiddotmiddot------~ middot- middotmiddotmiddot -middotmiddot~ middotmiddot--middotmiddotmiddotmiddot
become for the astronaut what the parachute is to the aviator shy
a chance for survival in case oi failure of the main vehicle Such
a human middot-carryng biocapaule would have to be equipped with
stabilizers jet and aerodynamic to prevent rotation and
tuInbling (U)
B Ballistic Vehicles
Our discussion will be limited to the recovery of pulely ballistic
interplanetary vehicles inasmuch as that wi1l most probably be the
design of all initial vehicles in a space recovery program The
sphere is the present prototype of a ballistic space capsule which -
can be used to advantage for recoverable planetary missions Of
course every syn1metric body at zero angle of attack is also a
nonlifting (ie ballistic) body and could be utilized for the flight -
Fer a sphere the drag coefficient atays close to unity most of the
time and if i middot~ loses litte middotJeight due tn blai-n t gtalhsti-
coeC bull _ient __- bull ~emuna essentially constant (U)CnA
The tleajectory which a typical superorbital ploneuy) ballistic
-e-entry vehicle follows is defined by
Qgt initial re-entry velocity Vi
Ill initial re-entry angle Y
o ballistic coefficient of vehicle (-c2)
middotmiddot - ~middot middot middot middot ~
- -middot-~- bull middot----- ----middot---- - - middot - _- ~--------- ~ --- -T------ - --middot--middot~---- - ___
~ bull ltll bull
-- middot - - bullbull --- middotmiddotmiddotmiddotmiddot _ middot---middot bull- - - _J_ __ -middot
Most re-entry vehicle trajectories are treated as a two-body problem
1nvolvins a central forre 1eld with the assumption of a nonr-otat ing
atmosphere and 7ero thrust S tarting with a ltnown initi al velocity
altitude and angle between the velocity vector and the local horishy
pounde ntal trajec tory parameters dete r mined are velocity alti tude
Ugbt path angle t angential acceleration rate of altitude change and
the geocentric angle - all as unctions of the independent variable i time (see Roeences 13 and 15) Aa can be seen these var iables
wtllllrovide an infinite number of re-entry trajectQries until the
actual vehi cle and mission parame~ere are described As aI r I
1 r
practicd matter re-entry anatee will probably be kept under -10deg
W1th initial velocities on the order of 35000 to 430CO Ct sec (U) middotshyI C Re-Entry CorridorI i Well known is the fact thegtt the re-entry angl o determination is I ~ J quite critical U er~ry is oo -hllow the v~~icle i 1t~htlbulltJ
pierce tht ITIsple~ ~bullbull 1 continue out into space or illto a
geocentric orb1t) on the other hand a too-large entry a ngle yields
heating and structural (deceleration) problems wlllch could adver sely
affect the v$bicle Thi~ aivea rise to the concept of the re-entry
corridor which is defined by an undershoot and overanoot boundary
The corr~dor width w is given a11 the diatance betwcaen the conic
per iaecs of the two boundarieu (ice Fig Z) As h app-nt ro1n
--
- ~-- middot- - middotmiddot middotmiddot--middot middotmiddotmiddotmiddotmiddotmiddot-- -----middot -- ----- -middotmiddot- -middot- _______ ___ _____-------middot- -middot- middot-middot- ---middotmiddot
UNCLASSIFIED
VEHICLE
middot middot
CONiCS
FIG Z LANDING CORRIDOR WIDTH
UNCLASSIFIED 8
_ - - middot middot- -- -~middotmiddot __ _ _ _~ middot middot middot _~-middot __ _-- ~ middotmiddotmiddotmiddotmiddotshy_
I
I l
l -1
f I
r ~-i
the preceltHng discussion the Wldth o ( the corridor w lll be a
unction o entry veloclty entzy angle and ballistic cocliicient
(Liltdrag ratios and modulation metbcxs al so influence w for
nonballistic boche=) Consequently for a g~ven velucle and entry
veloc1ty Lhe corridor may be represented by a range of acceptshy
able entry angles Conversely if the range o acceptable eotry
angles as known the corndor width is determined by calculating
the Keplenan perigees and measuring the dHeren c e between
peri gee alti tude- Corridor width as depoundmed by either w 01 Y
may thereioce be used to s t ipulate the maximum tolerable errors -for a guidance syatem U)
D Space Vehi cl Veloc i tiea
The veloci ti es assoc iated with space miesions are
circular
ell ipse bull
parabolic
hyperbolic
where K famp the gravitattonal parameter a charact eamiddot lc constant
16 3 of the attract iog body M (or earth it io 140752 X ) t I e ecZ)
a nd r 1s th e radial distance from the attrac ti ng focur_ All e arh 1
__ _ _____ _~ middot _ --middotmiddot~-- ~-
satelhtes possess either circula1middot 01 elliptical velocities In a
parabolic orbit the vehicle 1s entire kinetic energy is used up in
overcoming the central bodys entire potential energy between the
in9tantaneous distance and infinity The vehicle therefore has a
velocity of 0 at infinity -that is after escape In a hyperbolic
orb1t the vehicle has more kinetic energy than necessary for
overconung the gravitational potential opound the central body Thereshy
fore even after escape from the body the vehicle has a finite
remaining velocity which is used to change its orbital energy with
respect to the central force field of the middotnext higher order bull namely
the solar field (U
E Re-Entry Maneuvers
The maneuvers that are required to convert the ~yperbolic
approach orbit which develops as the vehicle begins to respond to
the influence o the gravitational filld of i~s ds~natim to an crbit
which leads to 11afe penetl ~middotion of the plbullll~tary atmosphere will _-
now be discussed (see Fig 3) The criteria for a eatisfactory
landing trajectory include the concept of a landing corridor described
above Sale landing paths are correlated with the configuration of
the spacecraft and with the altitude of the Keplerian perigees for
the approach trajectory This is the perigee which would occur if
I the approach trajectory were not perturbed by the effects of
10
- middotshy
--
I
l-- ___ ~-~middot--~----~~--c- ~ ---~ --=-middot~---~--~------middot--- middot middot ~ -- -~-~--~ -~~~ ----- --~~- ~ middot-_
______ _ --- -middot--middot- ---middot- middotmiddot-middotmiddot ---middotmiddot__--- middotmiddot - middot
UNCLASS IFI EO
-middot middotmiddotshy
bull
I i ~
-F~G 3 APPROACH middotANO ltRE-ENTRY TRAJECTORY
UNCLASSIF1EO
l J
-shyltmiddot
~ - - - - - -
~-tA~ - middot middotmiddot ~
~j
~ middot----- shy
- -- -middotmiddot - ~ I bull
- - bull -~ bull 1 I gt bull 0 bull bull o 9
- ---middot middotmiddotmiddot- -middot -middot - - ----middot--middot--- ____ -----middot ___________ __ -----~
I
-~
atmospheric drag Using thiamp correlation the control of the
spacecraft to place it in a landing path will be accomplished 1f it
1s COttrolled in such a way as to _place its Keplerian perigee
wtthin a dea1gnated landing corridor This is accomplished by
maneuvers which modiy the approach trajectory until the orbit
relations which may be measured indicate a value of perigee
_ radius rp and velocity vpbull which are within the indicated
landing corridor It is envisioned that such a 1middoteturn problem will
be accomplished by the application of corrections (coarse and
iine) to the return trajectory as follows
-shy1 First corrections are applied at a point sufficiently
disant to assure_that the trajectory will close with the earth such
as to allow fine corrections at a later time This first correction
i rather simple in application and for middotbest results it will be
i J
pe rormed at the greatEgtst pc sible distn shye h om earth in ce bull bullro
conserve fuel Th~gt -1istane iF hmiddottuted oy the accuracy with which 1 Lhe correction can be computed and applied U)
2 The liecond correction adjusts the approach trajeuroctory
c3usmg it to pass through the narrow landing corridor Thi6
corrlction is applied fa1rly close to earth when precision meas1bullreshy
menta of the trajectory are feasible Without the first correction
~ 12 i
- bullbull-bull--bullbullbull bullmiddot-~-- middot-Wbullbull bull _ oO
excessive p r opulsion energy might be required to perforrn the
second correction (t1)
3 The third correction is roquired to convert the approach
orbit f rom one which has 1ts perigee in the chosen landing corridor
to one whleh aetuaUy re-enteu the at moephere and i s recover ed
This will normally be accomplished by retrorocket deceleration
but in some caees an atmospheric - induced d rag could be ued (U)
The accuracy o the guidance r eq uired or landing control is
thoroughly r Pvie wed in a NASA r eport by Chapman (Reference )
The consequences of an inaccurate solution to the re-entry homing
problem are considered to be intolerable therefore the uae o shyan opegt loop solution i e r ejectOltl in favor ol a closed loop guidance
bullIaystcm In the latter eystem fliaht condltionbull are conllauauely I
bulljmonitored and correctioxu applied a10 needed thie syatem r equires__ middot
an accur ate predicllon syatem on bord to orpoundt nons c f
the vehicle Correctionbull may be i1tror 1d through applieatlon o
continuoua thrust or t~ough impuleee ~t aelecteci inteJvals (U)
F Re -Eotry Guidance System
A postulated interplAnetary homing re-entry guidance ~chenu
usmg on-board componclts i1 dcpcted in Fig 4 Meaauremente
of ranae r range rate l and the rate opound change of the Une ol
13
1
TRAJECTORY COMPUTER
middotp ~shyK II t ltmiddot )
I 1
CO~TROLLER
V a in ltjJ
UNCL ASSI FIED
STELLAR TRACKING SYSTEM
tJ GYRO- I NERTIAL r-shy =-1 ~ REFERENCE
1 _
ampVACTUAL
A T TIT UOE CONTROL OF
PITCH AXIS ROLL AXIS
AV rshy--shy- -0
11---shy - g
MPNEUVER PJltOPULSION
FIG 4 ON- BOARD LANDING GUIDANCE SYSTEM FOR INTERPLANETARY VEHICLE
UNCLASSIFIED
- ~ __shy- -----middot ---middot--middot~middot-middotmiddot shy middot ---middotmiddot----shy-shy-middot~-----shy
~
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
- -middot-~- bull middot----- ----middot---- - - middot - _- ~--------- ~ --- -T------ - --middot--middot~---- - ___
~ bull ltll bull
-- middot - - bullbull --- middotmiddotmiddotmiddotmiddot _ middot---middot bull- - - _J_ __ -middot
Most re-entry vehicle trajectories are treated as a two-body problem
1nvolvins a central forre 1eld with the assumption of a nonr-otat ing
atmosphere and 7ero thrust S tarting with a ltnown initi al velocity
altitude and angle between the velocity vector and the local horishy
pounde ntal trajec tory parameters dete r mined are velocity alti tude
Ugbt path angle t angential acceleration rate of altitude change and
the geocentric angle - all as unctions of the independent variable i time (see Roeences 13 and 15) Aa can be seen these var iables
wtllllrovide an infinite number of re-entry trajectQries until the
actual vehi cle and mission parame~ere are described As aI r I
1 r
practicd matter re-entry anatee will probably be kept under -10deg
W1th initial velocities on the order of 35000 to 430CO Ct sec (U) middotshyI C Re-Entry CorridorI i Well known is the fact thegtt the re-entry angl o determination is I ~ J quite critical U er~ry is oo -hllow the v~~icle i 1t~htlbulltJ
pierce tht ITIsple~ ~bullbull 1 continue out into space or illto a
geocentric orb1t) on the other hand a too-large entry a ngle yields
heating and structural (deceleration) problems wlllch could adver sely
affect the v$bicle Thi~ aivea rise to the concept of the re-entry
corridor which is defined by an undershoot and overanoot boundary
The corr~dor width w is given a11 the diatance betwcaen the conic
per iaecs of the two boundarieu (ice Fig Z) As h app-nt ro1n
--
- ~-- middot- - middotmiddot middotmiddot--middot middotmiddotmiddotmiddotmiddotmiddot-- -----middot -- ----- -middotmiddot- -middot- _______ ___ _____-------middot- -middot- middot-middot- ---middotmiddot
UNCLASSIFIED
VEHICLE
middot middot
CONiCS
FIG Z LANDING CORRIDOR WIDTH
UNCLASSIFIED 8
_ - - middot middot- -- -~middotmiddot __ _ _ _~ middot middot middot _~-middot __ _-- ~ middotmiddotmiddotmiddotmiddotshy_
I
I l
l -1
f I
r ~-i
the preceltHng discussion the Wldth o ( the corridor w lll be a
unction o entry veloclty entzy angle and ballistic cocliicient
(Liltdrag ratios and modulation metbcxs al so influence w for
nonballistic boche=) Consequently for a g~ven velucle and entry
veloc1ty Lhe corridor may be represented by a range of acceptshy
able entry angles Conversely if the range o acceptable eotry
angles as known the corndor width is determined by calculating
the Keplenan perigees and measuring the dHeren c e between
peri gee alti tude- Corridor width as depoundmed by either w 01 Y
may thereioce be used to s t ipulate the maximum tolerable errors -for a guidance syatem U)
D Space Vehi cl Veloc i tiea
The veloci ti es assoc iated with space miesions are
circular
ell ipse bull
parabolic
hyperbolic
where K famp the gravitattonal parameter a charact eamiddot lc constant
16 3 of the attract iog body M (or earth it io 140752 X ) t I e ecZ)
a nd r 1s th e radial distance from the attrac ti ng focur_ All e arh 1
__ _ _____ _~ middot _ --middotmiddot~-- ~-
satelhtes possess either circula1middot 01 elliptical velocities In a
parabolic orbit the vehicle 1s entire kinetic energy is used up in
overcoming the central bodys entire potential energy between the
in9tantaneous distance and infinity The vehicle therefore has a
velocity of 0 at infinity -that is after escape In a hyperbolic
orb1t the vehicle has more kinetic energy than necessary for
overconung the gravitational potential opound the central body Thereshy
fore even after escape from the body the vehicle has a finite
remaining velocity which is used to change its orbital energy with
respect to the central force field of the middotnext higher order bull namely
the solar field (U
E Re-Entry Maneuvers
The maneuvers that are required to convert the ~yperbolic
approach orbit which develops as the vehicle begins to respond to
the influence o the gravitational filld of i~s ds~natim to an crbit
which leads to 11afe penetl ~middotion of the plbullll~tary atmosphere will _-
now be discussed (see Fig 3) The criteria for a eatisfactory
landing trajectory include the concept of a landing corridor described
above Sale landing paths are correlated with the configuration of
the spacecraft and with the altitude of the Keplerian perigees for
the approach trajectory This is the perigee which would occur if
I the approach trajectory were not perturbed by the effects of
10
- middotshy
--
I
l-- ___ ~-~middot--~----~~--c- ~ ---~ --=-middot~---~--~------middot--- middot middot ~ -- -~-~--~ -~~~ ----- --~~- ~ middot-_
______ _ --- -middot--middot- ---middot- middotmiddot-middotmiddot ---middotmiddot__--- middotmiddot - middot
UNCLASS IFI EO
-middot middotmiddotshy
bull
I i ~
-F~G 3 APPROACH middotANO ltRE-ENTRY TRAJECTORY
UNCLASSIF1EO
l J
-shyltmiddot
~ - - - - - -
~-tA~ - middot middotmiddot ~
~j
~ middot----- shy
- -- -middotmiddot - ~ I bull
- - bull -~ bull 1 I gt bull 0 bull bull o 9
- ---middot middotmiddotmiddot- -middot -middot - - ----middot--middot--- ____ -----middot ___________ __ -----~
I
-~
atmospheric drag Using thiamp correlation the control of the
spacecraft to place it in a landing path will be accomplished 1f it
1s COttrolled in such a way as to _place its Keplerian perigee
wtthin a dea1gnated landing corridor This is accomplished by
maneuvers which modiy the approach trajectory until the orbit
relations which may be measured indicate a value of perigee
_ radius rp and velocity vpbull which are within the indicated
landing corridor It is envisioned that such a 1middoteturn problem will
be accomplished by the application of corrections (coarse and
iine) to the return trajectory as follows
-shy1 First corrections are applied at a point sufficiently
disant to assure_that the trajectory will close with the earth such
as to allow fine corrections at a later time This first correction
i rather simple in application and for middotbest results it will be
i J
pe rormed at the greatEgtst pc sible distn shye h om earth in ce bull bullro
conserve fuel Th~gt -1istane iF hmiddottuted oy the accuracy with which 1 Lhe correction can be computed and applied U)
2 The liecond correction adjusts the approach trajeuroctory
c3usmg it to pass through the narrow landing corridor Thi6
corrlction is applied fa1rly close to earth when precision meas1bullreshy
menta of the trajectory are feasible Without the first correction
~ 12 i
- bullbull-bull--bullbullbull bullmiddot-~-- middot-Wbullbull bull _ oO
excessive p r opulsion energy might be required to perforrn the
second correction (t1)
3 The third correction is roquired to convert the approach
orbit f rom one which has 1ts perigee in the chosen landing corridor
to one whleh aetuaUy re-enteu the at moephere and i s recover ed
This will normally be accomplished by retrorocket deceleration
but in some caees an atmospheric - induced d rag could be ued (U)
The accuracy o the guidance r eq uired or landing control is
thoroughly r Pvie wed in a NASA r eport by Chapman (Reference )
The consequences of an inaccurate solution to the re-entry homing
problem are considered to be intolerable therefore the uae o shyan opegt loop solution i e r ejectOltl in favor ol a closed loop guidance
bullIaystcm In the latter eystem fliaht condltionbull are conllauauely I
bulljmonitored and correctioxu applied a10 needed thie syatem r equires__ middot
an accur ate predicllon syatem on bord to orpoundt nons c f
the vehicle Correctionbull may be i1tror 1d through applieatlon o
continuoua thrust or t~ough impuleee ~t aelecteci inteJvals (U)
F Re -Eotry Guidance System
A postulated interplAnetary homing re-entry guidance ~chenu
usmg on-board componclts i1 dcpcted in Fig 4 Meaauremente
of ranae r range rate l and the rate opound change of the Une ol
13
1
TRAJECTORY COMPUTER
middotp ~shyK II t ltmiddot )
I 1
CO~TROLLER
V a in ltjJ
UNCL ASSI FIED
STELLAR TRACKING SYSTEM
tJ GYRO- I NERTIAL r-shy =-1 ~ REFERENCE
1 _
ampVACTUAL
A T TIT UOE CONTROL OF
PITCH AXIS ROLL AXIS
AV rshy--shy- -0
11---shy - g
MPNEUVER PJltOPULSION
FIG 4 ON- BOARD LANDING GUIDANCE SYSTEM FOR INTERPLANETARY VEHICLE
UNCLASSIFIED
- ~ __shy- -----middot ---middot--middot~middot-middotmiddot shy middot ---middotmiddot----shy-shy-middot~-----shy
~
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
--
- ~-- middot- - middotmiddot middotmiddot--middot middotmiddotmiddotmiddotmiddotmiddot-- -----middot -- ----- -middotmiddot- -middot- _______ ___ _____-------middot- -middot- middot-middot- ---middotmiddot
UNCLASSIFIED
VEHICLE
middot middot
CONiCS
FIG Z LANDING CORRIDOR WIDTH
UNCLASSIFIED 8
_ - - middot middot- -- -~middotmiddot __ _ _ _~ middot middot middot _~-middot __ _-- ~ middotmiddotmiddotmiddotmiddotshy_
I
I l
l -1
f I
r ~-i
the preceltHng discussion the Wldth o ( the corridor w lll be a
unction o entry veloclty entzy angle and ballistic cocliicient
(Liltdrag ratios and modulation metbcxs al so influence w for
nonballistic boche=) Consequently for a g~ven velucle and entry
veloc1ty Lhe corridor may be represented by a range of acceptshy
able entry angles Conversely if the range o acceptable eotry
angles as known the corndor width is determined by calculating
the Keplenan perigees and measuring the dHeren c e between
peri gee alti tude- Corridor width as depoundmed by either w 01 Y
may thereioce be used to s t ipulate the maximum tolerable errors -for a guidance syatem U)
D Space Vehi cl Veloc i tiea
The veloci ti es assoc iated with space miesions are
circular
ell ipse bull
parabolic
hyperbolic
where K famp the gravitattonal parameter a charact eamiddot lc constant
16 3 of the attract iog body M (or earth it io 140752 X ) t I e ecZ)
a nd r 1s th e radial distance from the attrac ti ng focur_ All e arh 1
__ _ _____ _~ middot _ --middotmiddot~-- ~-
satelhtes possess either circula1middot 01 elliptical velocities In a
parabolic orbit the vehicle 1s entire kinetic energy is used up in
overcoming the central bodys entire potential energy between the
in9tantaneous distance and infinity The vehicle therefore has a
velocity of 0 at infinity -that is after escape In a hyperbolic
orb1t the vehicle has more kinetic energy than necessary for
overconung the gravitational potential opound the central body Thereshy
fore even after escape from the body the vehicle has a finite
remaining velocity which is used to change its orbital energy with
respect to the central force field of the middotnext higher order bull namely
the solar field (U
E Re-Entry Maneuvers
The maneuvers that are required to convert the ~yperbolic
approach orbit which develops as the vehicle begins to respond to
the influence o the gravitational filld of i~s ds~natim to an crbit
which leads to 11afe penetl ~middotion of the plbullll~tary atmosphere will _-
now be discussed (see Fig 3) The criteria for a eatisfactory
landing trajectory include the concept of a landing corridor described
above Sale landing paths are correlated with the configuration of
the spacecraft and with the altitude of the Keplerian perigees for
the approach trajectory This is the perigee which would occur if
I the approach trajectory were not perturbed by the effects of
10
- middotshy
--
I
l-- ___ ~-~middot--~----~~--c- ~ ---~ --=-middot~---~--~------middot--- middot middot ~ -- -~-~--~ -~~~ ----- --~~- ~ middot-_
______ _ --- -middot--middot- ---middot- middotmiddot-middotmiddot ---middotmiddot__--- middotmiddot - middot
UNCLASS IFI EO
-middot middotmiddotshy
bull
I i ~
-F~G 3 APPROACH middotANO ltRE-ENTRY TRAJECTORY
UNCLASSIF1EO
l J
-shyltmiddot
~ - - - - - -
~-tA~ - middot middotmiddot ~
~j
~ middot----- shy
- -- -middotmiddot - ~ I bull
- - bull -~ bull 1 I gt bull 0 bull bull o 9
- ---middot middotmiddotmiddot- -middot -middot - - ----middot--middot--- ____ -----middot ___________ __ -----~
I
-~
atmospheric drag Using thiamp correlation the control of the
spacecraft to place it in a landing path will be accomplished 1f it
1s COttrolled in such a way as to _place its Keplerian perigee
wtthin a dea1gnated landing corridor This is accomplished by
maneuvers which modiy the approach trajectory until the orbit
relations which may be measured indicate a value of perigee
_ radius rp and velocity vpbull which are within the indicated
landing corridor It is envisioned that such a 1middoteturn problem will
be accomplished by the application of corrections (coarse and
iine) to the return trajectory as follows
-shy1 First corrections are applied at a point sufficiently
disant to assure_that the trajectory will close with the earth such
as to allow fine corrections at a later time This first correction
i rather simple in application and for middotbest results it will be
i J
pe rormed at the greatEgtst pc sible distn shye h om earth in ce bull bullro
conserve fuel Th~gt -1istane iF hmiddottuted oy the accuracy with which 1 Lhe correction can be computed and applied U)
2 The liecond correction adjusts the approach trajeuroctory
c3usmg it to pass through the narrow landing corridor Thi6
corrlction is applied fa1rly close to earth when precision meas1bullreshy
menta of the trajectory are feasible Without the first correction
~ 12 i
- bullbull-bull--bullbullbull bullmiddot-~-- middot-Wbullbull bull _ oO
excessive p r opulsion energy might be required to perforrn the
second correction (t1)
3 The third correction is roquired to convert the approach
orbit f rom one which has 1ts perigee in the chosen landing corridor
to one whleh aetuaUy re-enteu the at moephere and i s recover ed
This will normally be accomplished by retrorocket deceleration
but in some caees an atmospheric - induced d rag could be ued (U)
The accuracy o the guidance r eq uired or landing control is
thoroughly r Pvie wed in a NASA r eport by Chapman (Reference )
The consequences of an inaccurate solution to the re-entry homing
problem are considered to be intolerable therefore the uae o shyan opegt loop solution i e r ejectOltl in favor ol a closed loop guidance
bullIaystcm In the latter eystem fliaht condltionbull are conllauauely I
bulljmonitored and correctioxu applied a10 needed thie syatem r equires__ middot
an accur ate predicllon syatem on bord to orpoundt nons c f
the vehicle Correctionbull may be i1tror 1d through applieatlon o
continuoua thrust or t~ough impuleee ~t aelecteci inteJvals (U)
F Re -Eotry Guidance System
A postulated interplAnetary homing re-entry guidance ~chenu
usmg on-board componclts i1 dcpcted in Fig 4 Meaauremente
of ranae r range rate l and the rate opound change of the Une ol
13
1
TRAJECTORY COMPUTER
middotp ~shyK II t ltmiddot )
I 1
CO~TROLLER
V a in ltjJ
UNCL ASSI FIED
STELLAR TRACKING SYSTEM
tJ GYRO- I NERTIAL r-shy =-1 ~ REFERENCE
1 _
ampVACTUAL
A T TIT UOE CONTROL OF
PITCH AXIS ROLL AXIS
AV rshy--shy- -0
11---shy - g
MPNEUVER PJltOPULSION
FIG 4 ON- BOARD LANDING GUIDANCE SYSTEM FOR INTERPLANETARY VEHICLE
UNCLASSIFIED
- ~ __shy- -----middot ---middot--middot~middot-middotmiddot shy middot ---middotmiddot----shy-shy-middot~-----shy
~
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
_ - - middot middot- -- -~middotmiddot __ _ _ _~ middot middot middot _~-middot __ _-- ~ middotmiddotmiddotmiddotmiddotshy_
I
I l
l -1
f I
r ~-i
the preceltHng discussion the Wldth o ( the corridor w lll be a
unction o entry veloclty entzy angle and ballistic cocliicient
(Liltdrag ratios and modulation metbcxs al so influence w for
nonballistic boche=) Consequently for a g~ven velucle and entry
veloc1ty Lhe corridor may be represented by a range of acceptshy
able entry angles Conversely if the range o acceptable eotry
angles as known the corndor width is determined by calculating
the Keplenan perigees and measuring the dHeren c e between
peri gee alti tude- Corridor width as depoundmed by either w 01 Y
may thereioce be used to s t ipulate the maximum tolerable errors -for a guidance syatem U)
D Space Vehi cl Veloc i tiea
The veloci ti es assoc iated with space miesions are
circular
ell ipse bull
parabolic
hyperbolic
where K famp the gravitattonal parameter a charact eamiddot lc constant
16 3 of the attract iog body M (or earth it io 140752 X ) t I e ecZ)
a nd r 1s th e radial distance from the attrac ti ng focur_ All e arh 1
__ _ _____ _~ middot _ --middotmiddot~-- ~-
satelhtes possess either circula1middot 01 elliptical velocities In a
parabolic orbit the vehicle 1s entire kinetic energy is used up in
overcoming the central bodys entire potential energy between the
in9tantaneous distance and infinity The vehicle therefore has a
velocity of 0 at infinity -that is after escape In a hyperbolic
orb1t the vehicle has more kinetic energy than necessary for
overconung the gravitational potential opound the central body Thereshy
fore even after escape from the body the vehicle has a finite
remaining velocity which is used to change its orbital energy with
respect to the central force field of the middotnext higher order bull namely
the solar field (U
E Re-Entry Maneuvers
The maneuvers that are required to convert the ~yperbolic
approach orbit which develops as the vehicle begins to respond to
the influence o the gravitational filld of i~s ds~natim to an crbit
which leads to 11afe penetl ~middotion of the plbullll~tary atmosphere will _-
now be discussed (see Fig 3) The criteria for a eatisfactory
landing trajectory include the concept of a landing corridor described
above Sale landing paths are correlated with the configuration of
the spacecraft and with the altitude of the Keplerian perigees for
the approach trajectory This is the perigee which would occur if
I the approach trajectory were not perturbed by the effects of
10
- middotshy
--
I
l-- ___ ~-~middot--~----~~--c- ~ ---~ --=-middot~---~--~------middot--- middot middot ~ -- -~-~--~ -~~~ ----- --~~- ~ middot-_
______ _ --- -middot--middot- ---middot- middotmiddot-middotmiddot ---middotmiddot__--- middotmiddot - middot
UNCLASS IFI EO
-middot middotmiddotshy
bull
I i ~
-F~G 3 APPROACH middotANO ltRE-ENTRY TRAJECTORY
UNCLASSIF1EO
l J
-shyltmiddot
~ - - - - - -
~-tA~ - middot middotmiddot ~
~j
~ middot----- shy
- -- -middotmiddot - ~ I bull
- - bull -~ bull 1 I gt bull 0 bull bull o 9
- ---middot middotmiddotmiddot- -middot -middot - - ----middot--middot--- ____ -----middot ___________ __ -----~
I
-~
atmospheric drag Using thiamp correlation the control of the
spacecraft to place it in a landing path will be accomplished 1f it
1s COttrolled in such a way as to _place its Keplerian perigee
wtthin a dea1gnated landing corridor This is accomplished by
maneuvers which modiy the approach trajectory until the orbit
relations which may be measured indicate a value of perigee
_ radius rp and velocity vpbull which are within the indicated
landing corridor It is envisioned that such a 1middoteturn problem will
be accomplished by the application of corrections (coarse and
iine) to the return trajectory as follows
-shy1 First corrections are applied at a point sufficiently
disant to assure_that the trajectory will close with the earth such
as to allow fine corrections at a later time This first correction
i rather simple in application and for middotbest results it will be
i J
pe rormed at the greatEgtst pc sible distn shye h om earth in ce bull bullro
conserve fuel Th~gt -1istane iF hmiddottuted oy the accuracy with which 1 Lhe correction can be computed and applied U)
2 The liecond correction adjusts the approach trajeuroctory
c3usmg it to pass through the narrow landing corridor Thi6
corrlction is applied fa1rly close to earth when precision meas1bullreshy
menta of the trajectory are feasible Without the first correction
~ 12 i
- bullbull-bull--bullbullbull bullmiddot-~-- middot-Wbullbull bull _ oO
excessive p r opulsion energy might be required to perforrn the
second correction (t1)
3 The third correction is roquired to convert the approach
orbit f rom one which has 1ts perigee in the chosen landing corridor
to one whleh aetuaUy re-enteu the at moephere and i s recover ed
This will normally be accomplished by retrorocket deceleration
but in some caees an atmospheric - induced d rag could be ued (U)
The accuracy o the guidance r eq uired or landing control is
thoroughly r Pvie wed in a NASA r eport by Chapman (Reference )
The consequences of an inaccurate solution to the re-entry homing
problem are considered to be intolerable therefore the uae o shyan opegt loop solution i e r ejectOltl in favor ol a closed loop guidance
bullIaystcm In the latter eystem fliaht condltionbull are conllauauely I
bulljmonitored and correctioxu applied a10 needed thie syatem r equires__ middot
an accur ate predicllon syatem on bord to orpoundt nons c f
the vehicle Correctionbull may be i1tror 1d through applieatlon o
continuoua thrust or t~ough impuleee ~t aelecteci inteJvals (U)
F Re -Eotry Guidance System
A postulated interplAnetary homing re-entry guidance ~chenu
usmg on-board componclts i1 dcpcted in Fig 4 Meaauremente
of ranae r range rate l and the rate opound change of the Une ol
13
1
TRAJECTORY COMPUTER
middotp ~shyK II t ltmiddot )
I 1
CO~TROLLER
V a in ltjJ
UNCL ASSI FIED
STELLAR TRACKING SYSTEM
tJ GYRO- I NERTIAL r-shy =-1 ~ REFERENCE
1 _
ampVACTUAL
A T TIT UOE CONTROL OF
PITCH AXIS ROLL AXIS
AV rshy--shy- -0
11---shy - g
MPNEUVER PJltOPULSION
FIG 4 ON- BOARD LANDING GUIDANCE SYSTEM FOR INTERPLANETARY VEHICLE
UNCLASSIFIED
- ~ __shy- -----middot ---middot--middot~middot-middotmiddot shy middot ---middotmiddot----shy-shy-middot~-----shy
~
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
__ _ _____ _~ middot _ --middotmiddot~-- ~-
satelhtes possess either circula1middot 01 elliptical velocities In a
parabolic orbit the vehicle 1s entire kinetic energy is used up in
overcoming the central bodys entire potential energy between the
in9tantaneous distance and infinity The vehicle therefore has a
velocity of 0 at infinity -that is after escape In a hyperbolic
orb1t the vehicle has more kinetic energy than necessary for
overconung the gravitational potential opound the central body Thereshy
fore even after escape from the body the vehicle has a finite
remaining velocity which is used to change its orbital energy with
respect to the central force field of the middotnext higher order bull namely
the solar field (U
E Re-Entry Maneuvers
The maneuvers that are required to convert the ~yperbolic
approach orbit which develops as the vehicle begins to respond to
the influence o the gravitational filld of i~s ds~natim to an crbit
which leads to 11afe penetl ~middotion of the plbullll~tary atmosphere will _-
now be discussed (see Fig 3) The criteria for a eatisfactory
landing trajectory include the concept of a landing corridor described
above Sale landing paths are correlated with the configuration of
the spacecraft and with the altitude of the Keplerian perigees for
the approach trajectory This is the perigee which would occur if
I the approach trajectory were not perturbed by the effects of
10
- middotshy
--
I
l-- ___ ~-~middot--~----~~--c- ~ ---~ --=-middot~---~--~------middot--- middot middot ~ -- -~-~--~ -~~~ ----- --~~- ~ middot-_
______ _ --- -middot--middot- ---middot- middotmiddot-middotmiddot ---middotmiddot__--- middotmiddot - middot
UNCLASS IFI EO
-middot middotmiddotshy
bull
I i ~
-F~G 3 APPROACH middotANO ltRE-ENTRY TRAJECTORY
UNCLASSIF1EO
l J
-shyltmiddot
~ - - - - - -
~-tA~ - middot middotmiddot ~
~j
~ middot----- shy
- -- -middotmiddot - ~ I bull
- - bull -~ bull 1 I gt bull 0 bull bull o 9
- ---middot middotmiddotmiddot- -middot -middot - - ----middot--middot--- ____ -----middot ___________ __ -----~
I
-~
atmospheric drag Using thiamp correlation the control of the
spacecraft to place it in a landing path will be accomplished 1f it
1s COttrolled in such a way as to _place its Keplerian perigee
wtthin a dea1gnated landing corridor This is accomplished by
maneuvers which modiy the approach trajectory until the orbit
relations which may be measured indicate a value of perigee
_ radius rp and velocity vpbull which are within the indicated
landing corridor It is envisioned that such a 1middoteturn problem will
be accomplished by the application of corrections (coarse and
iine) to the return trajectory as follows
-shy1 First corrections are applied at a point sufficiently
disant to assure_that the trajectory will close with the earth such
as to allow fine corrections at a later time This first correction
i rather simple in application and for middotbest results it will be
i J
pe rormed at the greatEgtst pc sible distn shye h om earth in ce bull bullro
conserve fuel Th~gt -1istane iF hmiddottuted oy the accuracy with which 1 Lhe correction can be computed and applied U)
2 The liecond correction adjusts the approach trajeuroctory
c3usmg it to pass through the narrow landing corridor Thi6
corrlction is applied fa1rly close to earth when precision meas1bullreshy
menta of the trajectory are feasible Without the first correction
~ 12 i
- bullbull-bull--bullbullbull bullmiddot-~-- middot-Wbullbull bull _ oO
excessive p r opulsion energy might be required to perforrn the
second correction (t1)
3 The third correction is roquired to convert the approach
orbit f rom one which has 1ts perigee in the chosen landing corridor
to one whleh aetuaUy re-enteu the at moephere and i s recover ed
This will normally be accomplished by retrorocket deceleration
but in some caees an atmospheric - induced d rag could be ued (U)
The accuracy o the guidance r eq uired or landing control is
thoroughly r Pvie wed in a NASA r eport by Chapman (Reference )
The consequences of an inaccurate solution to the re-entry homing
problem are considered to be intolerable therefore the uae o shyan opegt loop solution i e r ejectOltl in favor ol a closed loop guidance
bullIaystcm In the latter eystem fliaht condltionbull are conllauauely I
bulljmonitored and correctioxu applied a10 needed thie syatem r equires__ middot
an accur ate predicllon syatem on bord to orpoundt nons c f
the vehicle Correctionbull may be i1tror 1d through applieatlon o
continuoua thrust or t~ough impuleee ~t aelecteci inteJvals (U)
F Re -Eotry Guidance System
A postulated interplAnetary homing re-entry guidance ~chenu
usmg on-board componclts i1 dcpcted in Fig 4 Meaauremente
of ranae r range rate l and the rate opound change of the Une ol
13
1
TRAJECTORY COMPUTER
middotp ~shyK II t ltmiddot )
I 1
CO~TROLLER
V a in ltjJ
UNCL ASSI FIED
STELLAR TRACKING SYSTEM
tJ GYRO- I NERTIAL r-shy =-1 ~ REFERENCE
1 _
ampVACTUAL
A T TIT UOE CONTROL OF
PITCH AXIS ROLL AXIS
AV rshy--shy- -0
11---shy - g
MPNEUVER PJltOPULSION
FIG 4 ON- BOARD LANDING GUIDANCE SYSTEM FOR INTERPLANETARY VEHICLE
UNCLASSIFIED
- ~ __shy- -----middot ---middot--middot~middot-middotmiddot shy middot ---middotmiddot----shy-shy-middot~-----shy
~
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
--
I
l-- ___ ~-~middot--~----~~--c- ~ ---~ --=-middot~---~--~------middot--- middot middot ~ -- -~-~--~ -~~~ ----- --~~- ~ middot-_
______ _ --- -middot--middot- ---middot- middotmiddot-middotmiddot ---middotmiddot__--- middotmiddot - middot
UNCLASS IFI EO
-middot middotmiddotshy
bull
I i ~
-F~G 3 APPROACH middotANO ltRE-ENTRY TRAJECTORY
UNCLASSIF1EO
l J
-shyltmiddot
~ - - - - - -
~-tA~ - middot middotmiddot ~
~j
~ middot----- shy
- -- -middotmiddot - ~ I bull
- - bull -~ bull 1 I gt bull 0 bull bull o 9
- ---middot middotmiddotmiddot- -middot -middot - - ----middot--middot--- ____ -----middot ___________ __ -----~
I
-~
atmospheric drag Using thiamp correlation the control of the
spacecraft to place it in a landing path will be accomplished 1f it
1s COttrolled in such a way as to _place its Keplerian perigee
wtthin a dea1gnated landing corridor This is accomplished by
maneuvers which modiy the approach trajectory until the orbit
relations which may be measured indicate a value of perigee
_ radius rp and velocity vpbull which are within the indicated
landing corridor It is envisioned that such a 1middoteturn problem will
be accomplished by the application of corrections (coarse and
iine) to the return trajectory as follows
-shy1 First corrections are applied at a point sufficiently
disant to assure_that the trajectory will close with the earth such
as to allow fine corrections at a later time This first correction
i rather simple in application and for middotbest results it will be
i J
pe rormed at the greatEgtst pc sible distn shye h om earth in ce bull bullro
conserve fuel Th~gt -1istane iF hmiddottuted oy the accuracy with which 1 Lhe correction can be computed and applied U)
2 The liecond correction adjusts the approach trajeuroctory
c3usmg it to pass through the narrow landing corridor Thi6
corrlction is applied fa1rly close to earth when precision meas1bullreshy
menta of the trajectory are feasible Without the first correction
~ 12 i
- bullbull-bull--bullbullbull bullmiddot-~-- middot-Wbullbull bull _ oO
excessive p r opulsion energy might be required to perforrn the
second correction (t1)
3 The third correction is roquired to convert the approach
orbit f rom one which has 1ts perigee in the chosen landing corridor
to one whleh aetuaUy re-enteu the at moephere and i s recover ed
This will normally be accomplished by retrorocket deceleration
but in some caees an atmospheric - induced d rag could be ued (U)
The accuracy o the guidance r eq uired or landing control is
thoroughly r Pvie wed in a NASA r eport by Chapman (Reference )
The consequences of an inaccurate solution to the re-entry homing
problem are considered to be intolerable therefore the uae o shyan opegt loop solution i e r ejectOltl in favor ol a closed loop guidance
bullIaystcm In the latter eystem fliaht condltionbull are conllauauely I
bulljmonitored and correctioxu applied a10 needed thie syatem r equires__ middot
an accur ate predicllon syatem on bord to orpoundt nons c f
the vehicle Correctionbull may be i1tror 1d through applieatlon o
continuoua thrust or t~ough impuleee ~t aelecteci inteJvals (U)
F Re -Eotry Guidance System
A postulated interplAnetary homing re-entry guidance ~chenu
usmg on-board componclts i1 dcpcted in Fig 4 Meaauremente
of ranae r range rate l and the rate opound change of the Une ol
13
1
TRAJECTORY COMPUTER
middotp ~shyK II t ltmiddot )
I 1
CO~TROLLER
V a in ltjJ
UNCL ASSI FIED
STELLAR TRACKING SYSTEM
tJ GYRO- I NERTIAL r-shy =-1 ~ REFERENCE
1 _
ampVACTUAL
A T TIT UOE CONTROL OF
PITCH AXIS ROLL AXIS
AV rshy--shy- -0
11---shy - g
MPNEUVER PJltOPULSION
FIG 4 ON- BOARD LANDING GUIDANCE SYSTEM FOR INTERPLANETARY VEHICLE
UNCLASSIFIED
- ~ __shy- -----middot ---middot--middot~middot-middotmiddot shy middot ---middotmiddot----shy-shy-middot~-----shy
~
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
- ---middot middotmiddotmiddot- -middot -middot - - ----middot--middot--- ____ -----middot ___________ __ -----~
I
-~
atmospheric drag Using thiamp correlation the control of the
spacecraft to place it in a landing path will be accomplished 1f it
1s COttrolled in such a way as to _place its Keplerian perigee
wtthin a dea1gnated landing corridor This is accomplished by
maneuvers which modiy the approach trajectory until the orbit
relations which may be measured indicate a value of perigee
_ radius rp and velocity vpbull which are within the indicated
landing corridor It is envisioned that such a 1middoteturn problem will
be accomplished by the application of corrections (coarse and
iine) to the return trajectory as follows
-shy1 First corrections are applied at a point sufficiently
disant to assure_that the trajectory will close with the earth such
as to allow fine corrections at a later time This first correction
i rather simple in application and for middotbest results it will be
i J
pe rormed at the greatEgtst pc sible distn shye h om earth in ce bull bullro
conserve fuel Th~gt -1istane iF hmiddottuted oy the accuracy with which 1 Lhe correction can be computed and applied U)
2 The liecond correction adjusts the approach trajeuroctory
c3usmg it to pass through the narrow landing corridor Thi6
corrlction is applied fa1rly close to earth when precision meas1bullreshy
menta of the trajectory are feasible Without the first correction
~ 12 i
- bullbull-bull--bullbullbull bullmiddot-~-- middot-Wbullbull bull _ oO
excessive p r opulsion energy might be required to perforrn the
second correction (t1)
3 The third correction is roquired to convert the approach
orbit f rom one which has 1ts perigee in the chosen landing corridor
to one whleh aetuaUy re-enteu the at moephere and i s recover ed
This will normally be accomplished by retrorocket deceleration
but in some caees an atmospheric - induced d rag could be ued (U)
The accuracy o the guidance r eq uired or landing control is
thoroughly r Pvie wed in a NASA r eport by Chapman (Reference )
The consequences of an inaccurate solution to the re-entry homing
problem are considered to be intolerable therefore the uae o shyan opegt loop solution i e r ejectOltl in favor ol a closed loop guidance
bullIaystcm In the latter eystem fliaht condltionbull are conllauauely I
bulljmonitored and correctioxu applied a10 needed thie syatem r equires__ middot
an accur ate predicllon syatem on bord to orpoundt nons c f
the vehicle Correctionbull may be i1tror 1d through applieatlon o
continuoua thrust or t~ough impuleee ~t aelecteci inteJvals (U)
F Re -Eotry Guidance System
A postulated interplAnetary homing re-entry guidance ~chenu
usmg on-board componclts i1 dcpcted in Fig 4 Meaauremente
of ranae r range rate l and the rate opound change of the Une ol
13
1
TRAJECTORY COMPUTER
middotp ~shyK II t ltmiddot )
I 1
CO~TROLLER
V a in ltjJ
UNCL ASSI FIED
STELLAR TRACKING SYSTEM
tJ GYRO- I NERTIAL r-shy =-1 ~ REFERENCE
1 _
ampVACTUAL
A T TIT UOE CONTROL OF
PITCH AXIS ROLL AXIS
AV rshy--shy- -0
11---shy - g
MPNEUVER PJltOPULSION
FIG 4 ON- BOARD LANDING GUIDANCE SYSTEM FOR INTERPLANETARY VEHICLE
UNCLASSIFIED
- ~ __shy- -----middot ---middot--middot~middot-middotmiddot shy middot ---middotmiddot----shy-shy-middot~-----shy
~
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
- bullbull-bull--bullbullbull bullmiddot-~-- middot-Wbullbull bull _ oO
excessive p r opulsion energy might be required to perforrn the
second correction (t1)
3 The third correction is roquired to convert the approach
orbit f rom one which has 1ts perigee in the chosen landing corridor
to one whleh aetuaUy re-enteu the at moephere and i s recover ed
This will normally be accomplished by retrorocket deceleration
but in some caees an atmospheric - induced d rag could be ued (U)
The accuracy o the guidance r eq uired or landing control is
thoroughly r Pvie wed in a NASA r eport by Chapman (Reference )
The consequences of an inaccurate solution to the re-entry homing
problem are considered to be intolerable therefore the uae o shyan opegt loop solution i e r ejectOltl in favor ol a closed loop guidance
bullIaystcm In the latter eystem fliaht condltionbull are conllauauely I
bulljmonitored and correctioxu applied a10 needed thie syatem r equires__ middot
an accur ate predicllon syatem on bord to orpoundt nons c f
the vehicle Correctionbull may be i1tror 1d through applieatlon o
continuoua thrust or t~ough impuleee ~t aelecteci inteJvals (U)
F Re -Eotry Guidance System
A postulated interplAnetary homing re-entry guidance ~chenu
usmg on-board componclts i1 dcpcted in Fig 4 Meaauremente
of ranae r range rate l and the rate opound change of the Une ol
13
1
TRAJECTORY COMPUTER
middotp ~shyK II t ltmiddot )
I 1
CO~TROLLER
V a in ltjJ
UNCL ASSI FIED
STELLAR TRACKING SYSTEM
tJ GYRO- I NERTIAL r-shy =-1 ~ REFERENCE
1 _
ampVACTUAL
A T TIT UOE CONTROL OF
PITCH AXIS ROLL AXIS
AV rshy--shy- -0
11---shy - g
MPNEUVER PJltOPULSION
FIG 4 ON- BOARD LANDING GUIDANCE SYSTEM FOR INTERPLANETARY VEHICLE
UNCLASSIFIED
- ~ __shy- -----middot ---middot--middot~middot-middotmiddot shy middot ---middotmiddot----shy-shy-middot~-----shy
~
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
1
TRAJECTORY COMPUTER
middotp ~shyK II t ltmiddot )
I 1
CO~TROLLER
V a in ltjJ
UNCL ASSI FIED
STELLAR TRACKING SYSTEM
tJ GYRO- I NERTIAL r-shy =-1 ~ REFERENCE
1 _
ampVACTUAL
A T TIT UOE CONTROL OF
PITCH AXIS ROLL AXIS
AV rshy--shy- -0
11---shy - g
MPNEUVER PJltOPULSION
FIG 4 ON- BOARD LANDING GUIDANCE SYSTEM FOR INTERPLANETARY VEHICLE
UNCLASSIFIED
- ~ __shy- -----middot ---middot--middot~middot-middotmiddot shy middot ---middotmiddot----shy-shy-middot~-----shy
~
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
bull bull - -middot -- bull bull bullbull- bull-bullbullmiddot -middot~ middot - bull wbull~ _ _ bull - middot---middot~middot -- poobullo middot middot- middotbull - -middotbullbull ___ _shy oo~Ooo-----middotmiddot
~gtight 0 are required in order to compute the ne iessary flight
parameters Ior deteriIUnation oi the maneuvers required (U)
The optimum time or conversion irom the hyperbolic arc
approach trajedory to a planetary orb1t or land1ng ellipse is at
lhe Kepledan perigee The error in prediction opound the perigee
will be related to the error _in measurement of the orbit parameters
Deviations between the perigee opound the approach trajectory and the
center of the landing corrid()r are expressed in terms opound these
paramete-s by
r 2-2shy
er2
~ r_g_ shyar cg
11-middotmiddotmiddot t~- --l[ (-- - 2 aj__ - - -=-p ~ -- (U)as e eg
Unit contributions to the error in predicted pertget ltiUine a
quantity which may be designated the co-efficient of umt error
his coefficient expresses the error ln measuremet cf a single
flight coordinate which will contribute ar error or urbullmiddot u lgnitud~
in the desired parameter Since the desired parcmeter is the
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
-middot-middot- middot middot middot middot --middotmiddot-middot- middot- ~ --- middot ~_ _ __- ---middotmiddot middotmiddot
perigee distance rp the coefficients for the re-entry guidance
example are
Error in r leaillng to un it error in perigee
16r = 3rpJ r
E_rror in r leading to unit error in perigee
llr __1_ arp ar
Error in 6 leading to uni~ ~rtmiddotor at perigee
For an ear th approach trajectory these coefficients of uni t error - have been calculated and are shown in Table 1 From the data
listed in the table it is apparent that although the requirements
are xacting instruments may be constructed which will provide the
required accuracies to permit ildjuetment of the space vehicles
trajectory i n order to place its middotptrigee within a landing corndor
which is 5 to 10 miles wide provided that a one micro-radian
accuracy may be obtained from optical measurements of a - aubull t
disk Accuracy of instruments to meet this quality has been
predicted in US middotstate-of-the-art journals R~ge rate i
accuracy requirements will be satisfied if the differ~ntiation
intervah of 100 seconds or more are employed As the vehicle
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
- 0 - - middot - middot-- middot-middot- ---middot-- -- middot middot middot - --- --- middot- - _ _____ ~__ bull bull bull bull
TABLE I
UNlT ERROR VALUES ALONG AN EARTH APPROACH TRAJECTORY
Error in r leadlng to ~ J ~mile error in rp
Err o r in r le ading to 11 J - rnitco error in xp
rl r0 bull 10r r 25r r0 =SOrr0 = 100 0
00375007501503 mile
-middot 00159 mil 001530015S00156
sec
Enmiddotor in eJeilding to Ol45X l0~9 4ssxto middot 9 197XlO~q tOOX10-9 rad~ec~ J -mile erro r in rp
U = ~tSSlFt n
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
--middotmiddot-- -middot middot --- _ middot ---middot-middot--middot ~middotmiddotmiddot middot-middotmiddot - bull middot middotmiddotmiddot middot-middot -middotmiddotmiddot - ~~ middot - ~ - bull -middot __ bull bull bull -middot bull
SECRET
SECTLON lli
(U) PLANETARY LAND RECOVERY RANGE
In planning future programs auch as recoverable planetilory
probes the results are contingent upon the immeasurable timemiddotmiddoti I phasing oi advanced technology (Ui
bullI
Soviet liter ature doeamp not discuss in any detail the preplanning
for future planetary programs It does however ctearly indicate
that the future of the Soviet planetary reaearch program is currently
dependent upon successful planetary observation probes In
attempting to fulfill this requirement the Soviets have attempted
ten planetary missions of which only two were partiaUy successful
Based on current technology in the arcaa of guidance tracking
b~ing encoun~middot-reci in tler middotjanetcry program it is not believed
that recoverable planetary missions are planned for the 1964-72
time period (U)
By way of ltomparison NASA-advanced studies do not include
recoverable planetary probes d u ling ttus time period lbe laat
planetary system currently on the drawing board is the Voyager
vehicle which is ultimately debulligned to orbit its intend ed )lnet
19
AFMDC 6l-S6S5SECRET
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
2009-068 Document 5
BB 115- Part 1
Missing page 19
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
-- ~ -~middot middot-- ~ --~~~_ -~- ~_ ~___middot _ - ~middot ~middot ____ middot- - ~-L-----=--- ____ bullbull middot--middot
middot- - middot ------ --- - middot -shy
SECR~i
as an observation probe with the future pouiblit y of ejecting
capsules or planetary impact (tJ)
F o r tile purposes o this repo rt it ia aaaumed that tcientiic
intereat in the plane t will ccntlnually Increase and a recoverable
planetary probe will ulbmately be developed by the Sov iott The
need for a land recovery area will be a natural conuquence of
~~ueh a prog-rarn (U
A5 pointed out U a previoua AFMDC technical report
(AFMDC-TR-63-l) conceruing poetulats4 land recovery arelt~La or
lunar vehicl es the beat suited locale or recovery within the USSR
-This conclusion was reached by reviewinamp the oUowLna ltllndard
site selection c riteria and ua ine it aa a worldnamp baee
l Security
2 Safety
3 Terr ain
4 Climatology
logistic Suppo rt
6 Reltovery CommiLlld and Control Notwo rbull
7 Search u d Recovery NetwOrk
Thue palamatera althouth crU1ltal to the tuccu l roy
recoverable mi5sion a r e euentially controlled by the bull bicle
zo
AFMDC 63- S6SS SECRET ~
-middot =middotmiddotmiddot bull () - ------
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
--
- _ __ __~
middotmiddot- middot -middot ---middot- middotmiddotmiddot--~ --middot- middot --- --~ ----middot --___________-middot--middot____ ~-middot middot-middot -
design characteristics and the geometrical constra1nts of the entry
mission Without these parameters it 1s impossible to accurately
pred1ct a land-based aim poin t (U)
As discussed in Secnon II 1t is belleved t hat the Soviets w1ll
m~tlally utilize a pure baLli stic recoverable planetary probe Use
o uch Vltlgtid~ ltt]IJ~ cae Wlcr~alr ~mrr ~onil9r gtnto the
earth 15 atmosphere and places final unpact accuracy in the hands
space traclung stationQ Theae stations w1H be responsible for
determ1mng guidance corrections necessary prior to earth entry
on th e final leg of the trajectory ~
Fig 5 points out those areas of the USSR wbch most closely
satisfy all standard land recovery range site selection parameters
wllhout respect to postulated gu1dance accuracies This figure was
originally derived ior a recoverabl e lunamiddot veiucle wc middotmiddoth con~l H middot ~)~
entry thus the t hee tmpact amiddot~- J lt is believed that in the 1972shy
era or before If technology perm1ts the Sov1ets will have tracking
accuracies and propul sion systems capable o ach1eving _entry 1nro
the tarser range area as depicted in the figure As pointed out i n
AFMDC-TR-63 middot 1 the optimum recovery area lies within the
primary zone and constitutes an optlmum ~ po1nt for recoverabllt
planetary probes as well as lunar return vehicles ~
21
AFMDC 63 - 5655SECRET
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
---~----~--~- ~ middot- ---1---- --- - ~ ______middot_ ~~__~--~-- -middot_----------- middot middotbull ~ middot------=----~-~ - ~ - )-middot4middot - _ __ __ __ ~ ---middot middot-- ----middotmiddot--
rl i i
i i
~ jJ - I
I N
middot lt
I I gtgtI
~ () ltshy
Ul o-U
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
- ___ _ -- middot- middotmiddot- middot ---middotmiddotmiddot-~middotmiddot- - middotmiddotmiddotmiddot - -- - middot-middotmiddot----middot ~- ~ middot -middot middot middot -middot-middot - middotmiddotmiddot-- shy
Due to the gu1dance inaccuracies antic1pated during initial
interplanetary flights provisions or emergency l anding sites
should also be conside red Recovery within any land mass 1n the
Soviet Union or Soviet Bloc countries could provide relahve
security to the mission and in most ca~es still be located by
mobtle recovery forces Water impact an additional hazard
should also be considered during early missions The recovery
vehicle s~ould be capable of surviving a water impact in case of
emergency and st ill provide adequate 6afety to itt~ scientific
payload ln addition recovery for ces shou~d be capable and -middotshydeployed poundor water retri eval as well as land recovery ]iii(
AFMDC 63-5655SECRET
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
J ~--- - middot- middot-middot~ ~- __middotmiddot ~~- ~ -~~~~---middot--~- middot-~--~-- - ----- I -- bullbullbullmiddot-~______~_____ ------ -- _ - -~ ~- middot-middot __--~--- =--- ~ ~
- ---40 middotmiddotmiddotmiddot-middot middot middot middotmiddotmiddotmiddotshymiddotmiddotmiddot middotshy middotmiddot ____ ____ ---~ - shy ----------middotshy _
SECTION IV
(U) PLANETARY RECOVERY RANGE COMMAND
AND CONTROL
As previously d i scussed the engineer-ing probl ems connected
I with recoverable planetary flight are much more complex than
I those encountered 1n r ecoverable earth orbit programs When
discuss1ng recovery 1middotaoge programming however the command
and control aspects need not be more complex in deSlgn (U
A8suming that the SoviPtS will use a ballistic type re-entry
verucle during t~e initial phases of the program the current
command and control network should prove adequate for assuring
timely recovery Fig 6 shows the command and control network
which is believed used by the Soviets during current earth orbit
recoverymiddot exerc1ses 85
Tbe existing structu_r e enalJles de ~obull t to amiddot- esign
s1mplicity combired with ~oerational effectiveness Th1s
system is believed to make use o a recovery range conbull-olle1middot
who exercises overall control of all searchrecovery rrces in
the planned impact -rone and at the 10ame time receives computed
tn~pact data and fir11t echelon directions from the misotou control
i
center
SOX and 3 E013526
24
SECRET AFMDC 63-5655 middot
shy
~
bull
~(middot- I
I
- shy --1 bull I ~
shymiddot middot
middot
-
- ----- ~-
~ -
shy
~
bull
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
- - middot- - -- ----- ---middot------middot-- - ~middot-
ICOMPUTpound 0 POSITION OATA I
RECOVERY RANGE
CONT ROLLER
t
RECOVERY SUPPORTishy
aASES
SEARCH AIRCRogtIT
HELICOPTER ltEC middotERY
TEAMS
BEACON
TRACI(ING STATIONS
--shy
GROUND MOBILE RECOVERY
TEAM S
shy
F IG 6 (UJ RECOVERY AANGE COMMAND AND CONTR( _ NETWORK
r-rHi 63-5555
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
--
___ middot-- middot- - -- middot-- middotmiddot------middotmiddot-middot middotmiddot --- --- middot-middot-middot -~middot-middot middotmiddot middot _
SECR El
SOXl and 3 E013526
Thu technique wo11ld prov1dc the central controller
w1th t imely dtrecttnnal information and thut enable him to dispatch
s11arch recovery [orces to the general recovery area o~lmoampt
Although the recovery o planetary p robes is not expected to
alt~r the cur r ent r ecovery range command and contrul atzuctur c ~t
will pro~bly introduce some complexity tnto the opcrat~onal aspc-ts
o f recov~t~y As d~scuased previously tho tracking and gutd ance
lDaccuracles 1nhereot in a ballistic planetary re-entr y system are
11uch thampt the proposed cecove ry ~one will probubly be increaaed b
nelt This will constitute a requlrement or additional penonnel
equipment and s taging a r eabull in o r der to trOvldo m o ro broad
launch and r eco IC ry 01 rbulllt~nctary probes tnltial deployment
ol the recolery o rces will also be governed by the au1dnce
accuracies achieved throughout the eagttre Hgbt Th cecovery
(cyces sbouJd be moved into the preplanned recovery one no
later than o oe weellt prlor to the ctculated re-entry da~- Check shy
oul o the rec~ve y r a nge command a nd control newo-lr coald be
~6
AFMDC 63- 5655SfCRElshy
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
p _ - - - middot middot - bull middot-middot - --- middot- - middot middot middot middot middot - middotmiddot bull bull bull - - - - bullbull _ _--- - - ~middot middot ~--- ~-
SEC RET
accomplished during the interim period with redeployment
carried out i ne cessary (U)
Eve1~ though the use opound a lnllistic re-entry vehicle allcv10LCS
the need lor range con trolled terminal guidance applications
du r ing re ~entry it places extreme accuracy requuements on
the deep spa ce tracking facilities middot As pointed ou t earlie- r final
impact accuracy wul be dependent upon the tracking and guidance
~ccurar1 e s achievable during the final leg o planetary flight (U)
Soviet literature has on occa sion credited the deep space
tracking facility in the Crimea with the capability of tracking
planetary probes Although the tracking accuracy cf equipment
locate d at this facility is currently unknown some insight may
be gleaned from Soviet releases at the July and October 1961
international scientific meetings in Washington D C They
reportedly gave the fcllvWn~ data n tt~ f ovi ~middot intei)hnetprmiddot
trttcking radar
Antenna type - Tracking dish
Radio f requency - About 700 me s
Power flux density - ZSO rowsteradian
Oscillator atability - 1 part in 1 billion
Duty factor - 05
Pulse l e ngth - 64 or lZS milliseconds
27
AFMDC 63-5655SECRET
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
-middot- - -middot--- --middotmiddot --- -- --middotmiddot--middot - ~-- ---middotmiddot-middotmiddotmiddotmiddot - middot- ------middot - middotmiddotmiddot--middot--middot- middot
Tlansmit polar i zation - Circular
Recetve polaraation - Linear
Power tncident on surface of Venus at very center of
beam 11lummation - 15 watts
Although these characte ristics cannot be equated to any one
Soviet radar i t is believed that the Sovietamp have three deep
space trackiltg radars with the necessary large tracking dishes
(nominal 72 1 one each located at Moscow Novoaibusk and in
the Crimea 81 The use opound the~P radars could provide the Soviets with deep
space position information but are not presently beheved capable
of accuacies necessary for recoverable planetary vehicles (S1
Additional information suggests that the Soviets could be ___
attempting to establish tracking lacilities in both Chile and
Indonesia lf such a network could be established it would probably
cloely approximate the US Deep Space lnPt-ulnentatior Facl t~~
DSIF) with stations at J~L G-gt1ds~- bull Facility California
Woomera Australia ltLnd JohltLnnesburg South Africa This
middotwould then provide the Soviets with worldwide tracking coverage
usefut in beth near and de ep space missions 8r
If uch a space tracking network is intended by the Soviets
all trltLcking inlormation vould probably be fed into a central data
reduction center similar to the US Goddard Space Flight Center
28
AFMDC 63-5655
SECRET
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
TELEMETRY MONITORING RECOVERY
SUPPORT STATIONS BASES
l SEARCH l Y
AIRCRAFT FORCE
_j r RE-ENTR
T~PCKING STATIONS
l t1A~ )
S
BEACf~lt
HELICOPTER TRACKING ~1AiiONSRECOVERY (RECOVFRY)
FORCES
GROUND MOBILE RECOVERY
FORCES
middot-- --~--- -
- middotmiddot___ -- -shy middot - - middot--- middotmiddot- --middotmiddotmiddot ---middot- middotmiddot
TRACKING
RECOVERY NETWORK NETWORK
OEEP SPACE
RECOVERY TRACKING STATIONS RANGE (AAOIO OPTICAL)
CONTROl-LER
MISSION CONTROtLER
tOATA REDUCTIO CENTER
-middotmiddotmiddot-middot
FIG 7 (U) MISSION COMMAND AND CONTROL
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
~--middot - -- middotmiddot - -- ----- middot~middot- -- - -- middot---middotmiddotmiddot -middot----- ---__- -middot middot---middotmiddot
APPENDlX 1
GLOSSARY OF TERMS
A - reference frontal area
C - velocity reduction factor
c - drag coefficient0
e - eccentricity
g - acceleration due to grav1ty of body
K - gravitational parameter
M - n gta55
r - radial distance (range
r - radius of plane~0
r1 - radial distance from principal focus
rp - radial distance to periapsis
r - range rate
v - scalar velocity
v - vecto velocity
vp - velocity at periapsis
vi bull initial re-entry velocity
W -weight
w bull co~ridor width
y initial re bull ntry angle (light path angle)
31
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
- -_- bull _ bullbullbullbull middot- middotmiddotmiddot-- bullo bullbullbullbull _---bull middotbull -bull-abull--bullbullbullbullbull bullbull-middot----- bullmiddot-- bull bull
8 bull line o ~ight angle angular distance along trajec~ory middot measured at principal focus from a refe r ence direction
to posi tion vector of the vehicle
ti bull turning rate of the line of sight
bullbull elevation angle coflight path angle measured fr om local hor irontal where horizontal is defined as the plane normal to the geocentric position vector of the vehicle)
i j
-l
i i 1 I middotj
I 1 I I
i l
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
(U) BIBLIOGRAPHY
1 A Brief Look at the Soviet Space Program JSl-SB-63-5 )8(
2 A Recoverable Interplanetary Space Probe Report R-235 Volume 1 Instrumentation Laboratory MIT July 1959 U)
3 An Analysis of the Corridor and Guidance Requirements for Supercircular Entry into Planetary Atmospheres 11 by Dean R Chapman NASA Technical Report R-55 1959 (U)
4 Comprehensive Analysis of Soviet Space Program AID Report 61-72 Science and Technology Section (U)
5 Life-Support System for Mars Journey SpaceAeronautics September 1963 U)
6 Lunar Exploration System (LES) Land Area Recovery Range and Associated Command and Control Systems AFMDC-TRshy63 -1 f6f
7 Manned Entry Missions to Mars and Venus by Robert E Lowe ard Robert L Gervais American Rocket Society Journal Volume 3Z Nr 11 November 1962 (U)
8 Nilv1gation and Guidance in Space lly Edward V B Stearns-~ Prentice -fllllnc Book Company 19h3 (U)
9 NORAD WIR 146gt 181
10 NORAD WIR 663 bull (81
11 NORAD WIR 2562 ~
12 Plane tary TOPS FTD Foreign Space Programs Analysis middot Office 20 September 1963 ~
13 Principles of Atmospheric Re-Entry by Theltrlrote A George ARPA November 1961 (U)
14 Space Flight by Kraft Ehriche Volumes I and~ Vat_ Nostrand 1962 (U)
33
AFMDC 63-5655
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
middotmiddot ------ -- --- middot middot- -middot middot middot-- ---middot~middot -middot- ~-middot middotmiddot middot middot middot middot middot middot --- ---middot---middot-middot- -middot-middot~middot- middot- middotmiddot--middotmiddot- middot
15 Structural Requirements of Re~Entry rom Outer Space by Charles E Hanshaw et al W ADC Tech Report 60 ~886 Boeing AirpllnC Company May 196L U)
16 Survey of Atmo6phere Re~Entry Guidance and Control Methods 11 by R C Wingrove AlAA Journal September 1963
(U)
17 Tracking and Command of Aerospace Vehicles lAS Proceedings of the National Symposium San Francisco
19 ~21 February 1962 (U)
I middotI
1
1
AFMDC 63~5655
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
-~~-- --- ----middot - ---middot~-middot_ - - -middot-~ ---middot ~-- --- middotmiddot ~middot
-~---- - _- -- ------------middotshy- - middot--middot---middot
DlSTIUBUTlO~
ICopy Nr I
OPR Org~niration 01-0Z
TDEVl 03-04FTD TDFS 05 -09FTD TDBDP 10 - 11FTD scFT 1middot13AFSC BSF l4 - 1S BSD SSFT l6 -l7 SSD SF ASD ESY
lS - 19 20-Zl
ESD AMF ZZ-23j AMIgt RJY Z4-Z5I RAJ)Gy AFWL
WIF Z6-Z7 FTY ZS-9
AFFTC MTW 30 -31i AFMTC
imiddotl PGF 32-33APGG AEY - 34 AEDC Mt)OPMaj B racken 35f I AFMDC ADOi AFMDC
36 MDNH Imiddot AFMDC I
I II 1 gt i I l I I I
AFMDC 63-5655
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC
bullD bull bull bull bull _tOtbull bull bullbull bullbull bull bullbullbulloD bull bull bullbulloOt DtOtooo~a taoatebullbullbullbullbullbullbull bull bullOI 0 1Oti i DI G I 0 1 t O t bullbull oa l Oiet atOI O l0 I a t t a i O IOt l le l i
~ i i ~ bull
bullbull 0 I o i N E W [j X I C 0 lbullli JJl lrl i bull i i ~ i ~ i bull i i
i i ~ i i 40 ~ I ~ SOCORRO bull ~~ f T ~ i IOD I i 1 i
~ ~ Z bull ALAMOGORDO
I AnlluC roLJOAi A-e I o _j i - - - i ii WHitE SANDS MISSilE IAMGpound --- ~middotmiddot middotmiddot middotmiddot--middotmiddotmiddotmiddotmiddotmiddot--middotmiddot~middotmiddot middotbullbullbullbull tlmiddotmiddotmiddotmiddotmiddotmiddotmiddotmiddot u bullwbull bull bull 1bull bull bull --
gbull i i i RIO GRANDE
AREA MAP SHOWING LOCATION OF AFM DC