ACE Weekly 02/04/2009 - 02/09/2009

All ACE spacecraft subsystems are performing nominally.

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Orbit/Attitude:

No maneuvers were performed this week.  The next attitude maneuver is
scheduled for Monday 02/16/2009.

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OCRs:

None

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Activities:

Data Capture:  100%  DOY 033-039 2009

An ACE Multi-Mission Ops Center (MMOC) test is scheduled for Friday
02/20/2009.  This will test DSN configuration changes that should allow VC1
(realtime) and VC2 (playback) data to be saved to separate CDR files after
the transition to SLE.

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Anomalies:

DOY 035  02/04/2009  S-ACE-0414  G09-0010  DSS-27 Antenna Stop
The ground antenna stopped tracking unexpectedly.  The antenna was reset and
tracking again within 13 minutes
IMPACT:  Minimal.  The playback had already completed and no commanding was
necessary during this time.

DOY 040  02/09/2009  S-ACE-0415  G09-0011  AC1WS3 Frozen
The ACE MOC computer used for operations (ac1ws3) was frozen.  The
automation software notified the FOT at 30 minutes before Beginning Of Track
(BOT-30min).  SysAdmins were available and the computer was rebooted
(BOT-10min).  The automation software did not successfully initialize and
manual intervention was required.  The automation software successfully
started at BOT+15min and pass activities started at BOT+30min.
IMPACT:  Manual intervention was required.  The pass was during staffed
hours and the pass was not lost.  Due to activities delayed 30 minutes, the
playback was completed on the following pass.