ACE Weekly 12/20/2011 - 12/26/2011 All ACE spacecraft subsystems are performing as expected. ======================================================================== Orbit/Attitude: No maneuvers were performed this week. The next attitude maneuver is scheduled for Thursday 12/29/2011. ======================================================================= OCRs: None ======================================================================== Activities: Data Capture: 100% DOY 352-359 2011 There will be two short gaps (31 seconds each) in the upcoming week as SSR failovers occur. This is due to the MUS problem on 12/25/2011 (DOY 259) and the limited antenna time while GRAIL is preparing for their Lunar Orbit Insertion (LOI). Wed 12/28/2011 DOY 362 ~1050z Fri 12/30/2011 DOY 364 ~0050z The new FDF product server stopped accepting automated logins from the MMOC on 12/22/2011. The FDF system administrator has been notified and hopefully this will be resolved next year. Currently automated login is only being used for retrieving the 28-day ephemeris for NOAA SWPC. That ephemeris is generated once every 3 weeks and won't be needed for another 2 weeks (last generated 12/21/2011). ======================================================================== Anomalies: DOY 259 12/25/2011 S-ACE-0587 G11-0015 No Telemetry from MUS The MMOC SLE software (Multi-User SLE, MUS) was not sending RT telemetry to ITOS or ace_data_fwd. This is an occasional problem (see table below). MUS was stopped and restarted, however, previous occurrences have been fixed with a simple disconnect/connect. IMPACT: This pass was short (2hrs 10min) and by the time the FOT arrived in the MMOC, there was only 40 minutes left in the pass. MUS was fixed, but the playback wasn't started to avoid a large SSR carryover. Previous occurrences of MUS RT telemetry issues. Future occurrences will be appended to the last SOAR. ACE 11/05/2010 S-ACE-0554 G10-0070 12/11/2010 S-ACE-0565 G10-0080 01/24/2011 S-ACE-0582 G11-0010 02/24/2011 S-ACE-0587 G11-0015 WIND 12/02/2011 S-WIND-0558