No. 82 - Fifth Passive Payload Checkout
A total of 10 New Norcia passes (2×4h tracking only) were taken during this period.
| DOY | Date | Pass | Main Activity |
| 135 | 15/05/07 | NNO 1172 | RSI PC5 |
| 136 | 16/05/07 | NNO 1173 | Monitor |
| 143 | 23/05/07 | NNO 1180 | PC5 data downlink |
| 144 | 24/05/07 | NNO 1181 | PC5 data downlink |
| 150 | 30/05/07 |
NNO 1187 |
Guidance change |
| 155 | 04/06/07 | NNO 1192 |
Monitor and NSHM entry pre-conditions verification |
| 156 | 05/06/07 | NNO 1193 | NSHM entry |
| 157 | 06/06/07 | NNO 1194 |
NSHM entry verification |
At the end of the reporting period (DOY 159) Rosetta was at 211.7 million km from Earth (1.41 AU; one-way signal travel time was 11 minutes 46 seconds). The distance to the Sun was 236.06 million km (1.57 AU).
Rosetta passed the aphelion of its third orbit around the Sun on DoY 140 (20 May 2007) when it reached a distance from the Sun of 237.14 million km (1.58518 AU).
Spacecraft
Payload
The reporting period included the following activities:
- Lander MUPUS recovery
- Passive Payload Checkout 5 between DoY 137, 12:00 UT and DoY 143, 16:00 UT (RSI on DoY 135 between 18:20 and 21:30 UT
ALICE
Operations have been conducted according to the plan.
CONSERT
Operations have been conducted according to the plan.
COSIMA
Operations have been conducted according to the plan.
GIADA
Operations have been conducted according to the plan.
MIDAS
Operations have been conducted according to the plan.
MIRO
Operations have been conducted according to the plan.
OSIRIS
Operations have been conducted according to the plan.
ROSINA
Nothing to report.
RPC
Operations have been conducted according to the plan.
RSI
Operations have been conducted with the following timeline on DoY 135 (15 May 2007):
|
Time |
Activity |
| 18:20 | Switch on S-BAND TX2 downlink and TRSP2 Ranging OFF |
| 19:10 | Stop SSMM dump |
| 19:20 | TRSP2 Coherent Mode OFF |
| 19:20 | Un-mute the Ultra-Stable Oscillator |
| 20:20 | X-TX2 TM OFF |
| 20:35 | X-TX2 TM ON |
| 20:50 | TRSP2 Coherent Mode ON |
| 20:50 | Mute the Ultra-Stable Oscillator |
| 21:05 | Switch off S-BAND TX2 downlink |
| 21:15 | TRSP-2 Ranging ON |
VIRTIS
Nothing to report.
LANDER Philae
The MUPUS recovery was executed on DoY 137 shortly before the activities scheduled for the passive payload checkout.
SREM
The instrument has been operated according to the plan. On DoY 155 the accumulation settings have been changed for passive cruise mode.
Future Milestones
The Near Sun Hibernation Phase will last until the beginning of September. During this period weekly contacts are foreseen for monitoring purposes. In early September the spacecraft will be reconfigured back to Active Cruise Mode in order to later execute the active payload checkout 6, at the end of September. This will be done in preparation of the second Earth swing-by which takes place on 13 November 2007.
After the payload checkout the navigation campaign linked to the Earth swing-by will begin and last until the end of November.