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11.09.2013 06:16 Age: 12 yrs

[Jason-2] Status update: Recovery in progress

Category: Operational news

The cause of the Safe Hold Mode was analysed and the decision to restart the mission have started. The current schedule foresee a Poseidon-3 restart on September 12th.

As reported in the previous status, operations have been restarted on 2013/09/09 with a reconfiguration (commanded from ground) on PM-B side of the spaceraft and an analysis of the memory. The on-board software patch has been uploaded again and executed during 3 orbits in order to check the memory through successive dumps; the results are very good because there is no RAM error on PM-B. This confirms the hypothesis that the safe hold is due to a simple Error Detection And Correction (EDAC) not corrected.

 

In front of this situation, the decision to restart the mission on PM-B has been taken by the operational team and the related activities have started. On Tuesday, 10th September, many subsystems (GPS, gyros, STR,..) have been restarted; so far, everything is going smoothly.

 

We should reach the NOM (nominal) mode by Wednesday, 11th September around 15:00 UT. Then the payload instruments will be switched ON.

 

The current schedule foresee a POS3 restart on September 12th around 12:00 UT, an AMR & GPSP restart the same day around 14:00 UT and the passengers the day after. Of course this schedule may be updated at any time if necessary.

 


Thierry Guinle of behalf of Jason-2 project managers from NOAA, EUMETSAT, JPL and CNES

Related News:
 [Jason-2] Status update: Ssalto/Duacs data again available - 16.09.2013 07:50
 [Jason-2] Status update: Restart of Core Mission - 13.09.2013 08:23
 [Jason-2] Status update: Recovery in progress - Final steps - 12.09.2013 06:12
 [Jason-2] Status update - Investigation in progress - 06.09.2013 16:22
 [Jason-2] Safe Hold Mode since 05 September 2013 09:26 UT - 05.09.2013 16:18
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