M. Kirsch, M. Kirsch, XMM-Newton XMM-Newton European Space Operations CenterEuropean Space Operations Center
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ESOCESOCESOCESOC
XMM Operations XMM Operations
Marcus G. F. Kirsch Marcus G. F. Kirsch
with Inputs from the Flight Control Team at ESOCwith Inputs from the Flight Control Team at ESOC
European Space Agency (ESA)European Space Operations Centre (ESOC)
March, 2010March, 2010
M. Kirsch, M. Kirsch, XMM-Newton XMM-Newton European Space Operations CenterEuropean Space Operations Center
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ESOCESOCESOCESOCmenumenu
• Spacecraft status & mission performanceSpacecraft status & mission performance
• Special eventsSpecial events
• OutlookOutlook
M. Kirsch, M. Kirsch, XMM-Newton XMM-Newton European Space Operations CenterEuropean Space Operations Center
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ESOCESOCESOCESOCsolar arrayssolar arrays• power generation capabilities are normal. power generation capabilities are normal. • No sign of unexpected degradation visibleNo sign of unexpected degradation visible
Actual
Prediction before launch
M. Kirsch, M. Kirsch, XMM-Newton XMM-Newton European Space Operations CenterEuropean Space Operations Center
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ESOCESOCESOCESOCcurrent fuelcurrent fuel
0
100
200
300
400
500
600
time
fuel
[kg]
Remaining fuel 76. [kg]
Consumption last 12 month
5.1 [kg]
average fuel consumption
(since 2003-03-01)
0.48 [kg/month]
residual lifetime in month
118 [-]
extrapolated milageSept 2019
M. Kirsch, M. Kirsch, XMM-Newton XMM-Newton European Space Operations CenterEuropean Space Operations Center
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ESOCESOCESOCESOCbatteriesbatteries
Batteries have just been reconditioned the 3rd timeand have approx. same capacity as at launch
XMM-Newton Battery 1 & 2 Parametersmax DOD/ min EOD Volts vs. Season
36.50
37.00
37.50
38.00
38.50
39.00
39.50
Aut
umn
2002
Spr
ing
2003
Aut
umn
2003
Spr
ing
2004
Aut
umn
2004
Spr
ing
2005
Aut
umn
2005
Spr
ing
2006
Aut
umn
2006
Spr
ing
2007
Aut
umn
2007
Spr
ing
2008
Aut
umn
2008
Spr
ing
2009
Aut
umn
2009
Spr
ing
2010
Season No [-]
EO
D V
olt
age
[V]
10.0
15.0
20.0
25.0
30.0
35.0
40.0
DO
D [
%]
Bat 1 EOD Voltage Bat 2 EOD Voltage Bat 1 DOD Bat 2 DOD
Reco Autumn 2003 Reco Autumn 2007 Reco Autumn 2009
M. Kirsch, M. Kirsch, XMM-Newton XMM-Newton European Space Operations CenterEuropean Space Operations Center
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ESOCESOCESOCESOCLCL statisticsLCL statistics
5 2
2010:- Heater of RW1 OFF- Transponder 2 ON
M. Kirsch, M. Kirsch, XMM-Newton XMM-Newton European Space Operations CenterEuropean Space Operations Center
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ESOCESOCESOCESOCSpacecraft/mission statusSpacecraft/mission statusMoneyMoney Funded untilFunded until
next extension requestnext extension requestEnd 2010End 2010in 2010in 201020142014
FuelFuel remainingremaining
Use per yearUse per year
Mileage leftMileage left
76 kg76 kg 6 kg 6 kg20192019
Solar array powerSolar array power Maximum requiredMaximum required
Current marginCurrent margin
Margin end of 2018Margin end of 2018
1350 W1350 W
550 W550 W
350 W350 W
Battery Battery According to UHBAccording to UHB 15+ y15+ y
Gyros/(IMUs)Gyros/(IMUs) UsageUsage < 20 %< 20 %
Reaction wheelsReaction wheels UsageUsage < 37 % < 37 %
RF switchesRF switches
Transponder switchesTransponder switches
UsageUsage Stuck at one position Back up not Stuck at one position Back up not used instead transponders are used instead transponders are switchedswitched
TX A LCL switches 227 TX A LCL switches 227 TX B LCL switches 243 TX B LCL switches 243 (Qualified to 25000)(Qualified to 25000)
M. Kirsch, M. Kirsch, XMM-Newton XMM-Newton European Space Operations CenterEuropean Space Operations Center
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ESOCESOCESOCESOCG/S maintenanceG/S maintenance• Heavy G/S maintenance 2009 in July, August, November and December: Heavy G/S maintenance 2009 in July, August, November and December: 4/6 month4/6 month• Nominal revolutions: only 46/93Nominal revolutions: only 46/93• Lots of additional late requests for G/S maintenance requires manual Lots of additional late requests for G/S maintenance requires manual action of FCT also outside working hoursaction of FCT also outside working hours
Worst case: rev 1832
Number ofHandovers per Revolution
0123456789
10
Revolution
HE2B launch
KRU full and partialt d/t
Ariane 5 Flight 192 tracking
PER full and partialt d/t
M. Kirsch, M. Kirsch, XMM-Newton XMM-Newton European Space Operations CenterEuropean Space Operations Center
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ESOCESOCESOCESOCdata recoverydata recovery
March 21
M. Kirsch, M. Kirsch, XMM-Newton XMM-Newton European Space Operations CenterEuropean Space Operations Center
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ESOCESOCESOCESOCmission performancemission performance
Mission Performance Figures
60.0
65.0
70.0
75.0
80.0
85.0
90.0
95.0
100.0
2003
2004
2005
2006
2007
2008
2009
2010
2011
Year
Eff
icie
ncy
[%
]
pn RGS MOS
minumum required
Performed science /scheduled science
Numbers collected from SOC page
M. Kirsch, M. Kirsch, XMM-Newton XMM-Newton European Space Operations CenterEuropean Space Operations Center
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ESOCESOCESOCESOCeclipse 2009 Julyeclipse 2009 July• 05-21/07/0905-21/07/09• max. discharge duration: max. discharge duration: 01h13m11s01h13m11s• Max. Depth of Discharge: 24.0 % (100%=35Ah)Max. Depth of Discharge: 24.0 % (100%=35Ah)
fully nominalfully nominal
M. Kirsch, M. Kirsch, XMM-Newton XMM-Newton European Space Operations CenterEuropean Space Operations Center
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ESOCESOCESOCESOCtank1 thermostat failuretank1 thermostat failure• Indicator:Indicator: After July Eclipse #4: After July Eclipse #4: DP TM TD057 (tank temps. range) OOL HH (10.41) DP TM TD057 (tank temps. range) OOL HH (10.41) Reason: tank 1 temperatures lowReason: tank 1 temperatures low
–T6072 (TH L TANK 1 TOP) : 22.5T6072 (TH L TANK 1 TOP) : 22.5–T6073 (TH L TANK 1 EXT): 21.25T6073 (TH L TANK 1 EXT): 21.25These temperatures have never been lower than 24.5 degC before!These temperatures have never been lower than 24.5 degC before!
•Assumption:Assumption: LTP thermostat LTP thermostat not closing properly not closing properly•Cure:Cure: TSWTSW, connected in parallel to LTPT is closed with time tags: cycle , connected in parallel to LTPT is closed with time tags: cycle pattern: 3h35m closed, 38m open pattern: 3h35m closed, 38m open this guarantees a temperature range this guarantees a temperature range of of T1 EXTT1 EXT of 27-28 degC and a temp delta between all tanks of < 5 degC of 27-28 degC and a temp delta between all tanks of < 5 degC (Note: average temp in 2009 with working LTP was 27.5 degC)(Note: average temp in 2009 with working LTP was 27.5 degC)
• why not to redundant LTP:why not to redundant LTP:– other units would have been as well effected (STR, OM)other units would have been as well effected (STR, OM)– lower (4 deg) temperature range lower (4 deg) temperature range need to change all other tanks as well to redundant heaters need to change all other tanks as well to redundant heaters (do big temperature deltas) (do big temperature deltas)
• why not HTP:why not HTP:– higher temperature range higher temperature range need to change all other tanks as well to redundant heaters (do big need to change all other tanks as well to redundant heaters (do big temperature deltas) temperature deltas)
Tank1 TopTank1 Ext
Tem
pera
ture
[de
gC]
Time [month as of 01/2009]
M. Kirsch, M. Kirsch, XMM-Newton XMM-Newton European Space Operations CenterEuropean Space Operations Center
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ESOCESOCESOCESOCMCS upgradeMCS upgrade
• Current status:Current status:– H/W: EoSL: 2011H/W: EoSL: 2011– S/W: OS Solaris 8 (End of support date March 2012) S/W: OS Solaris 8 (End of support date March 2012)
S2K3.1 M-05S2K3.1 M-05
– Options for evolution (currently under study)Options for evolution (currently under study)– Linux SLES 11, S2K3– Hybrid (Servers Solaris, Clients Linux), S2K3– Linux SLES 11, S2K5– Virtual emulation of Solaris 8– Other combinations using virtual machines
• Tests are underway for Linux for INTEGRALTests are underway for Linux for INTEGRAL
M. Kirsch, M. Kirsch, XMM-Newton XMM-Newton European Space Operations CenterEuropean Space Operations Center
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ESOCESOCESOCESOCoutlookoutlook• short term:short term:
– LCTF REDU LCTF REDU to be upgraded and tested in April (Issue with communication to KRU to be upgraded and tested in April (Issue with communication to KRU solved)solved)
– MCS S/W release in April:MCS S/W release in April:– Flexible timeline in MCS S/W 10.2.3 – Automation of Antenna Swap process
– Refurbishment of the DCR Refurbishment of the DCR (Move in May to interim DCR, back Sept. 2010) (Move in May to interim DCR, back Sept. 2010) Impact: no Too support during the actual move(s) (2+2 days) Impact: no Too support during the actual move(s) (2+2 days)
– Eclipse 2010 01/07-15-07Eclipse 2010 01/07-15-07
• medium term:medium term:– Automation of EclipseAutomation of Eclipse procedure procedure– MUST MUST implementation implementation – Star TrackerStar Tracker: 12 blemish pixels identified. Feasibility of the Blemish pixel : 12 blemish pixels identified. Feasibility of the Blemish pixel
compensation on board is ongoing with the OBSM STR SW test campaign. compensation on board is ongoing with the OBSM STR SW test campaign. – New G/S at KourouNew G/S at Kourou (Kourou Galliot) validation (pending issues with timing (Kourou Galliot) validation (pending issues with timing
accuracy)accuracy)– G/S maintenance of PER (2-4 August) and KRU (September 2-4 May) G/S maintenance of PER (2-4 August) and KRU (September 2-4 May)
• long term:long term:– MCS evolutionMCS evolution to be decided after next extension in 2010 for implementation in to be decided after next extension in 2010 for implementation in
2011 2011 – evaluation of possibility to use auto evaluation of possibility to use auto commanding to trigger flexible timecommanding to trigger flexible time