No. 99 - Switch to Active Cruise Mode
Operations during the reporting period have been nominal and preparation of the spacecraft for the active payload check-out 8 (PC8) has started. This activity will keep the mission control team fully engaged with commissioning type activities for four consecutive weeks.
A total of eight New Norcia (NNO) ground station passes were taken during this reporting period with nominal performance.
| DOY | Date | Pass | Main Activity |
| 163 | 11/06/08 | NNO 1566 | NSHM monitoring |
| 170 | 18/06/08 | NNO 1573 | NSHM monitoring |
| 177 | 25/06/08 | NNO 1580 | NSHM monitoring |
| 182 | 30/06/08 |
NNO 1585 |
NSHM exit pre-conditions check |
| 183 | 01/07/08 | NNO 1586 | NSHM exit |
| 184 | 02/07/08 | NNO 1587 | NSHM exit completion |
|
185 |
03/07/08 | NNO 1588 | Monitoring and PC8 preparation |
|
186 |
04/07/08 | NNO 1589 | Monitoring and PC8 preparation |
At the end of the reporting period (DoY 186) Rosetta was at 220 million km from Earth (1.47 AU) and the one-way signal travel time was 734 seconds. The distance to the Sun was 287 million km (1.92 AU).
Spacecraft
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. A test of the new power OFF on-board control procedure (OBCP) was successfully run on DoY 186.
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 instruments are OFF.
SREM
Since DoY 184/2008 the accumulation settings are configured for active cruise mode.
Future Milestones
The cruise phase continues towards asteroid Steins that will be encountered early September 2008. The payload check-out 8 will last four weeks. This will be followed by the optical navigation campaign required for the asteroid fly-by. This campaign will include imaging by the navigation camera (NAVCAM) and by the OSIRIS instrument.
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Legal disclaimer
This report is based on the ESOC mission operations report, WOR #99. Please see the copyright section of the legal disclaimer (bottom of this page) for terms of use.