ACE Weekly 03/12/2008 - 03/18/2008

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 Wednesday 03/26/2008.

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OCRs:

DOY 077 (03/17/2008)  GND-192  Single Person Commanding
The requirement for two-person commanding has been waived.  Command approval
will still be performed in compliance with ACE Escalation Procedures.

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Activities:

The precal test commands were reinstated on Thursday 03/13/2008.

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Anomalies:

DOY 071  03/11/2008  S-ACE-0291  G08-0031  DSS-34 Antenna Stop
The ground antenna stopped tracking for unknown reasons at 2346z.  The
station was eventually able to restart tracking at 0003z.  Uplink
re-established at 0005z.  DR#C106245.
IMPACT:  20 minute telemetry outage automatically redumped on following
support.

DOY 076  03/16/2008  S-ACE-0292  G08-0032  DSS-46 SLE CMDs
On Saturday, ACE MOC could not BIND to DSS-46 and SLE commands were not
reaching the station.  The ACEFOT was contacted at home and recommended the
station perform a TCP reboot and reload the service instance configuration
file.  The station successfully resolved the problem.  The ACE MOC binded to
the station (via automatic retries) and commanding was successful.  Side
note, the new BlackBerries simplified the resolution as compared with the
old pagers and calling cards that the FOT previously had.  DR#C106257.
IMPACT:  Activities delayed 30 minutes.