No. 83 - Near Sun Hibernation Mode
11 July 2007 09:22Report for Period 9 June to 6 July 2007
The 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.
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).
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.