Transcript Philae_Overview - Politecnico di Milano

4th Philae
Post-Launch
Workshop
Philae Status and News
Venezia; 30st of March 2009
Overview
 Philae In-flight Activities
 Ground Activities
 LCC Funding Situation
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4th Post Launch Philae Science WS, Venezia, March 2009
Flight Events
 In 2008/09 Philae was switched on during 6 operational blocks:
 Šteins Rehearsal
 Active Checkout PC8
 Šteins Flyby
 COSAC/CIVA Contingency Slot
 Passive Checkout PC9
 Thermal Characterization
(Apr 2008)
(July 2008)
(September 2008)
(November 2008)
(January 2009)
(February 2009)
 Operations Activities successful
 Problems / Areas of concern
(mostly known problems)
 Increased secondary battery discharge
 Temperature gradients inside Lander higher than estimated
 DPU1 booting problem at low temperatures
 ESS converter temperatures
 Certain deficiencies in CDMS S/W 6.98 (compared to 7.0)
 COSAC HV problems with new SW not understood
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4th Post Launch Philae Science WS, Venezia, March 2009
Philae In-flight Operations (I)
 Šteins Flyby Rehearsal
 Test of Solar generator (successful)
 Shadowing affects lead to “initial confusion”…
 Active Payload Checkout #8 (July 2008)
 Maintenance:
 New operations:
 Upload of CDMS S/W 6.98
 Problems:
 CDMS
 COSAC
 CIVA
 APX
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Status of CDMS S/W
 Version 6.98 successfully uploaded in PC8
 It was recommended by the last LOWG#12 to upload
final SW version 8.0 prior to DSH (deep space hibernation)
in PC12
 Workshops for SDL and LTS established; inputs to
CDMS SW still pending; due end of April
(next SDL/LTS meetings 27/28-April 2009)
 Several mission critical aspects need to be taken care of
 CDMS SW delivery planned for September 2009
 Verification period September to November 2009
 SW Upload in April 2010
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Philae In-flight Operations (II)
 Šteins Flyby
 ROMAP, SESAME and MUPUS operational
 ROMAP detects no magnetic signatures due to asteroid
 SESAME and MUPUS perform successfully calibration
 COSAC/CIVA Contingency Slot (CNT2)
 “old” COSAC S/W uploaded
 COSAC seems to work nominal (again) with pre-PC#8 SW
 COSAC H/W apparently ok
 Problem not understood
 planned CIVA SW downgrade abandoned
 CIVA worked well (no dummy images sent)
 Problem during PC#8 not understood
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4th Post Launch Philae Science WS, Venezia, March 2009
Philae In-flight Operations (III)
 Passive Checkout PC#9
 Standard Procedure
 Add. APXS measurement
 Thermal Characterization (THC2)
 Contribution to Lander Thermal Characterization
 Calibration measurements for SESAME and MUPUS
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Ground Activities
 GRM refinement
 Open work for ADS: EQM model exchange;
FM01 model implementation planned to be finished by May 2009
GRM is used for all Flight ops preparation !!
 Development tests for next CDMS S/W v8.0
 Development tests ongoing;
SW v8.0 verification period expected for Sep - Nov 2009
 LCC Status
 Upgrade of ESA interface (PDOP) ongoing
 DAVIS (upgrade development delayed, but continues)
 SCrOP, Annex G
The document provides an overview on the status of all Philae Cruise Phase
requirements
 Last version V1.5, 11th of December 2008, distributed to RSOC/RMOC and
Lander Team
 Lander Software Simulator
 upgrade delayed due to priority on CDMS SW v8.0 development, but
continues
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LCC Funding Situation
 New Project plan, based on results of independent review
from September 2007 now agreed
 Shared LCC funding between DLR Agency and DLR R&D
 New staff in the LCC team
 Jens Biele (Payload Management)
 Ed Trollope (Lander Simulator, Ops preparation (Šteins, Lutetia))
 Christian Krause (RLGS Support)
 Koen Geurts (GRM, Ops preparation)
 Hans-Herbert Fischer (LCCS support, (SESAME)
 Franziska Lenski (QA at MUSC)
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