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No. 83 - Near Sun Hibernation Mode

No. 83 - Near Sun Hibernation Mode

Report for Period 9 June to 6 July 2007The reporting period covers a period of four weeks of uninterrupted Near Sun Hibernation Mode for Rosetta.

All activities have been conducted according to the plan. A total of 4 New Norcia passes were taken during this period for monitoring purposes.

DOY Date Pass Main Activity
164 13/06/07 NNO 1201 Passive cruise mode
171 20/06/07 NNO 1208 Passive cruise mode
178 27/06/07 NNO 1215 Passive cruise mode
185 04/07/07 NNO 1222 Passive cruise mode

At the end of the reporting period (DOY 187) Rosetta was at 167.6 million km from Earth (1.12 AU; one-way signal travel time was 9 minutes and 19 seconds). The distance to the Sun was 235.5 million km (1.54 AU).


No activities have been conducted during the reporting period. For the Standard Radiation Environment Monitor (SREM) the accumulation settings have been configured for passive cruise mode since DoY 155.

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
6-Dec-2023 14:51 UT

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