ACE Weekly 11/05/2008 - 11/11/2008

All ACE spacecraft subsystems are performing nominally.

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Orbit/Attitude:

No maneuvers were completed this week.  The next attitude maneuver is
scheduled for Friday 11/14/2008.

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OCRs:

None

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Activities:

Data Capture:  100%  DOY 307-314 2008

There is a higher than normal risk of data loss from October 2008 through
February 2009.  If there are problems with the passes, it may not be
possible to acquire additional DSN time.  This higher-risk period has been
occurring every winter for the past couple of years.  For more information
refer to 10/14/2008 weekly.


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Anomalies:

DOY 310  11/05/2008  S-ACE-0376  G08-0111  DSS-46 Brief TLM Outage
The receiver at the station lost lock for unknown reasons.  The station
increased the RF loop bandwidth.  DR#C106618
IMPACT:  Minimal.  9 minutes of intermittent telemetry and 3 minutes of no
telemetry were redumped at the end of the pass.

DOY 313  11/08/2008  S-ACE-0377  G08-0112  DSS-46 SLE Problems
The ACE MOC software was unable to successfully BIND to the station.  The
station toggled the command status between Halt and Operate several times
without success.  The FOT was troubleshooting from home with the station via
the Ops Chief.  The station reloaded the desktop, but commands were still
unsuccessful.  The station performed one more toggle to Halt and back to
Operate and the SLE bind was then successful.  The FOT was travelling to the
MOC when the station successfully resolved the problem.  DR#C106622
IMPACT:  Activities delayed 47 minutes.

DOY 316  11/11/2008  S-ACE-0377  G08-0112  DSS-27 Commanding Problems
Commands were not being transmitted to the spacecraft.  DR Pending.
IMPACT:  Minimal.  Activities delayed 7 minutes.