No. 14 - Second ROSINA Commissioning Slot
On the subsystems side the Reaction Control Subsystem was isolated on 24 May, following the completion of the orbital manoeuvres. On-board software patching and configuration activities were carried out on 27 May to simplify the operational workaround strategy to keep the Antenna Pointing Motor off when the antenna is not moved.
The table below shows a chronology of the main activities in the reporting period:
Mission Day |
Date |
DOY |
Main Activity |
81 |
21/22.05.04 |
142/143 | ROSINA commissioning slot 2 pass 1 |
82 |
22/23.05.04 |
143/144 |
ROSINA commissioning slot 2 pass 2 |
83 |
23/24.05.04 |
144/145 |
ROSINA commissioning slot 2 pass 3 |
84 |
24/25.05.04 |
145/146 |
ROSINA commissioning slot 2 pass 4; RCS isolation |
85 |
25/26.05.04 |
146/147 |
ROSINA commissioning slot 2 pass 5; APM patch |
86 |
26/27.05.04 |
147/148 |
ROSINA commissioning slot 2 pass 6; |
87 |
27/28.05.04 |
148/149 |
End APM workaround (DS flag set, BU MTL delete) |
Rosetta has reached perihelion on 24 May at 17:00. Its minimum distance from the Sun was 132.6 million kilometres. At the end of the last New Norcia pass in the reporting period (DOY 149, 02:00) Rosetta was at 40.3 million kilometres from the Earth. The one-way signal travel time was 2 minutes 14 seconds.