No. 118 - Start of payload check-out 10
On DOY 259 the spacecraft entered a Safe Mode. It was promptly recovered and the nominal mission plan was re-established.
Payload activities for the tenth check-out (PC10) have now started.
Mission operations have been conducted with support of the ESA New Norcia (NNO) ground station and one pass with the Cebreros (CEB) ground station.
| DOY | Date | Pass | Main Activity |
| 236 | 24/07/09 | NNO 2006 |
NSHM monitoring |
| 243 | 31/08/09 | NNO 2013 |
NSHM monitoring |
| 250 | 07/09/09 | NNO 2020 |
NSHM monitoring pre-exit |
| 251 | 08/09/09 | NNO 2021 |
NSHM exit |
| 252 | 09/09/09 | NNO 2022 | Telemetry, Tracking & Commanding: reconfiguration from medium gain antenna (MGA) to high gain antenna (HGA) |
| 254 | 11/09/09 | NNO 2024 | Uplink of PC10 timeline |
| 257 | 14/09/09 | NNO 2027 | SC10 part 1 (CAM and routine units checks) |
| 259 | 16/09/09 | NNO 2029 | Safe Mode recovery (SC10 part 2 completed) |
| 260 | 17/09/09 | CEB 2030 | Safe Mode recovery completion and PC10 start |
At the end of the reporting period (DoY 261) Rosetta was at 54.26 million km from Earth (0.36 AU) and the one-way signal travel time was 181 seconds. The distance to the Sun was 197.4 million km (1.31 AU).
Spacecraft
Payload
All instruments are switched OFF, except for the Standard Radiation Environment Monitor (SREM) that continues to run in the background.
ALICE
The instrument is OFF.
CONSERT
The instrument is OFF.
COSIMA
The instrument is OFF.
GIADA
The instrument is OFF.
MIDAS
The instrument is OFF.
MIRO
The instrument is OFF.
OSIRIS
The instrument is OFF.
ROSINA
The instrument is OFF.
RPC
The instrument is OFF.
RSI
The instrument is muted.
VIRTIS
The instrument is OFF.
LANDER Philae
The instrument is OFF.
SREM
Since DoY 251/2009 the accumulation settings are configured for active cruise mode. These settings are now confirmed to be valid throughout the mission.
Future Milestones
The payload check-out number 10 has now started and will continue for the next two weeks. The schedule foresees a very packed test slot with most of the instruments undergoing maintenance and calibration activities.
After this phase focus will be on the navigation campaign for the third and last Earth swing-by to take place on 13 November 2009. This will be the last of the mission's four gravity assists.
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Legal disclaimer
This report is based on the ESOC mission operations report, WOR #118. Please see the copyright section of the legal disclaimer (bottom of this page) for terms of use.