Intelsat v-E Press Kit

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eNASANewsiNational Aeronautics andSpace AdministrationWashington,D.C.'20546AC 202 755-8370 pS ~/4/O

For Release IMMEDIATE

Press Kit Project Intelsat VERELEASE NO: 82!-136

Contents

GENERAL RELEAXE .................... . . .... .. . . .. . . .ATLAS; -CENTAUR LAUNCH -Vr-EHICLE-STATISTICS ....................... ..... 4-LAUNCH OPsRkATIONS......... >.......... . . .. . 5

LAUNCH SEQUENCE FOR INTELSAT U-6................ 6THE NASA INTELSAT TEAM. .......-......................... . ..... 7CONTlRACTORS... .. . .. .. .. .. . .. .. .. . .. .. .. .. . .. ........ 8

September 15, 1982


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National Aeronautics andSpaceAdministrationWashingtorn D.C. 20546AC 202 755-8370.

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For Release:David GarrettHeadquarters, Washington', D.C. IMMEDIATE(Phone: 202/755-3090)Marilyn EdwardsLewis Research Center, Cleveland, Ohio(Phone: 216/433-4000, ext. 438)

RELEASE NO: 82-136

INTELSAT SATELLITE SCHEDULED FOR LAUNCH

Intelsat V-E, the fifth of a new series of nine,-inter-national telecommunications satellites owned and operated by. the105-nation International Telecomaunications Satellite OiWganiza-tion (Intelsat), is scheduled to be launched by the NASA KennedySpace Center on board an Atlas Centaur launch vehicle no earlierthan Sept; 23, 1982, from Cape Canaveral, Fla. The four earlierIntelsaE Vs were successfully launched by"NASA in December 190,Mlay 19bl, December 1981, and March 1982.

Intelsat V-E weighs 1,972.3 kilograms (4,348 pounas) atlaunch and has almost double the communications capability ofearly satellites in the Intelsat series -- 12,000 voice circuitsano two color television channels.

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It will'be posi'tibned in geosynchronous orbit over the-Indian Ocean as the prime Intelsat satellite to. provide commun-;ications services between Europe., the Middle East and' the FarEast.

Intelsat V-4, launched in March, will be moved from itspresent position over the Indian Ocean to a position over theAtlantic Ocean at a later date.

Intelsat V satellites are built by the Ford Aerospace andCommunications Corp., Palo Alto, Calif., using .system componentsdeveloped by firms in the United Kingdom, France, the FederalRepublic of Germany, Italy and Japan.

The International Telecommunications Satellite Organization,is headquartered in Washington, D.C. NASA is reimbursed for allcosts of the 'Atlas Centaur and launch services under the provi-sions ot a launch services agreement signed in May last year.

The htlas- Centaur- -(AC-60) will, place, the Intelsat VL-E intoa highly elliptical transfer orbit ranging from 144.8 to 35,807kilometers (90 to 22',250 niles) perigee to apogee. It is fromthis orbit at apogee that a solid propellant rocket~ motoruttacihe6 to the satellite will be fi;red tow circularize tne orbitat geosynchronous altitude over the equator. At-that altitude,because the speed ot the satellite in orbit matches the rota-tional speed of the earth, the satellite remains in position overot'ie spot.-

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NASA's Lewis. Research Cente'r, Cleveland' Ohfio, has manage-

ment responsibility for Atlas Centaur development andop'eration.NASA's Kennedy Space Center, Fla., is assigned'vehicle checko'utana launch-responsibility once the Atlas Centaur reaches 'CapeCanaveral.

Overall direction of the'NASA -expendable launch vekicle-,pro-gram is vested in the Office of Space Transportation Operations

in Washington, D.C.

,(END OF' GENERAL RELLASE; BACKGROUND INFORMATION- FOLLOhWS.)

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ATLAS CZNTAUR LAUNCH VEHICLE STATISTICSIntelsat,V-E will be launched by theAtlas Centaur, NASA's

standard- launch vehicle for. intermediate weight payloads. Thelaunch vehicle has the following general. characteristics:Hei'ght: 40.8 meters (134 feet) including nose fairingDiameter: 3.05 m (10 ft.)Total Liftoff Weight: 148,306 kg (326,959 b.),including spacecraftLiftoff Thrust: 1,929,026,newtons (433,684 lb.~) sea level

Atlas StageThe Atlas stage consists of the booster section (one-halfstage) and the sustainer/vernier section (first stage). Tle Atlasis manufactured by General Dynamics/Convair, San Diego, Calif.,using the MA-5 engine system supplied by Rocketdyne Division ofRockwell Internationale Canoga -Park, Calif. The MA-S system con-sists of two booster engines, one sustainer engine and two ver-nier engines. The Atlas stage has the following characteristics:'Height: 21.1 m (69.2 ft.)-Diameter: 3.05 m (10 ft.)-Propellants: RP-1 kerosene for fuel and liquid oxygen(LOX) as the oxidizerThrust: Total Booster-: 1,672,448 N (376,0001lb.)- sea levelSustainer: 266,880 N (60,000 lb.)Total Vd-rfi'r:tr -4,`074#N (-l6-b lb.*)Total Liftoff Thrust: 1,943,402- N (436,916 lb.)

Centaur StageThe Centaur (second stage) is manufactured by GeneralDynamics/Convair, using the RL-10 engines built by Pratt ana

Whitney Aircraft Group, West Palm Beacn, kla. This stage nastne following characteristics:height: 9.1 m (3U ft.)Diameter; 3.05 in (10 ft.)Prope1lants.: 5iiqui hydrogen for fuel and liquid oxygenfor 'the o6-k'idizir.Thrust: 146,784 N (33,U0U lb.) vacuum

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LAUNCH OPERATIONS

Intelsat Vtis scneduled to be launched aboard Atlas Centaur60 from Pad B of NASA's Launch Complex 36, Cape Canaveral-AirForce Station,1Fla.

The Atlas and Centaur stages of the launch vehicle arrived-at the Cape on June 9, 1982. The Atlas stage was erectid on thepad on June 15, the interstage adapter on June 16, and theCentaur stage was mated to the vehicle on June 17. The flightevents demonstration test, a comprehensive electrical test of thelaunch vehicle, was undertaken on Sept. 9.

Intelsat arrived at Hangar AO at the Cape, n Aug. 6. Thespacecraft's electrical systems were tested and the vehicle'sthree earth sensors and two solar wings were installed. Thesatellite was moved to Satellite Assembly and EncapsulationBuilding No. 2 in the KSC Industrial Area- n Feb. 14. Intelsatunderwent additional checkout in SAEF-2 and the apogee kick motorwas installed on Sept. 12. The spacecraft was mated with thelaunch vehicle on Sept. 15 at the pad.

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TUE NASA INTELSAT TEAM

NASA Headquarters'Lt. Gen. James A. Abrahamson Associate'Administrator forSpace FlightJoseph B. Mahon- Director, Expendable LaunchVehiclesF. R. Schmidt, Manager, litlas Centaur Launchvehic)e

Lewis Research Center

,Andrew-J. Stofan DirectorDr. John Klineberg Associate DirectorLawrence J. Ross Director, Space DirectorateJ. E. Patterson Atlas/Centaur Project ManagerS. V. SzaDo Jr. Chief, Space TransportationEngineering DivisionRichard E. Orzechowski Intelsat,Mission ProjectEngineer

Kennedy Space CenterRicriard (i. Swlith Director!'lhomas S. Walton Director, Cargo OperationsCharles, Gay birecter, Expendable Vehicle

Gas' OperationsD.C. Slieppard Chiet, Automiated PayloadsDivisionJames L. Womack Chief, Atlas-Centaur OperationsDivision-LarTy- Kruse -Spacecrart Coordi-nator-

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CNTRACTORS

General Dynamics/Convair Atlas Centaur launch vehicleSai-Diego, ZCalif.Honeywell Aerospace Division Centaur guidance inertialSt. Petersburg,p Fla. measurement group-Pratt and Whitney Centaur RL-10 enginesAircraft GroupWest Palm Beach, Fla.Teledyne Industries, Inc. Digital computer unit/PCMNorthridge, Calif. telemetryRocketdyne Division MA-5 propulsion systemsRockwell International Corp.Canoga Park, Calif.

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(Inaex: 9, 20, 21, 2i)

Intelsat v-E Press Kit

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