No. 112 - Near Sun Hibernation Mode
06 April 2009 10:22
Report for Period 21 March to 3 April 2009
The reporting period covers the last two weeks of active cruise phase before the start of passive cruise phase 6 on 2 April 2009. The spacecraft is now in Near Sun Hibernation Mode (NSHM) and will remain in this passive cruise configuration until beginning of September. Spacecraft and ground segment performance during the reporting period have been nominal.
During the reporting period the performance of the deep space manoeuvre 4, which was executed on 18 March 2009, has been fully analysed confirming the good results of the preliminary analysis.
Mission operations have been conducted with support of the ESA New Norcia (NNO) ground station.
At the end of the reporting period (DoY 093) Rosetta was at 383.78 million km from Earth (2.56 AU) and the one-way signal travel time was 1280 seconds. The distance to the Sun was 317.25 million km (2.12 AU).
The current passive cruise phase will continue until beginning of September when the spacecraft will be reconfigured in active cruise mode in preparation of the Earth swing-by 3 phase.