Asset Publisher

No. 82 - Fifth Passive Payload Checkout

No. 82 - Fifth Passive Payload Checkout

Report for Period 12 May to 8 June 2007The reporting period covers a period of four weeks characterised by the following activities:Lander MUPUS anomaly testpassive payload checkout 5 (PC5)change of guidanceNear Sun Hibernation Mode (NSHM) entryAll activities have been conducted according to the plan.

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
(UT)

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.

Last Update: 1 September 2019
11-Jul-2020 06:17 UT

ShortUrl Portlet

Shortcut URL

https://sci.esa.int/s/8DRmRVw

Images And Videos

Related Publications

Related Links

See Also

Documentation

Further Readings