CE Weekly 12/06/02 - 12/12/02

All ACE spacecraft subsystems are performing nominally. No attitude 
maneuver was performed this week. The next maneuver is scheduled for 12/19/02.

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OCRs Executed:

NONE

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Ongoing Activities:

GDS(DSS-24) NSP Demo Pass
There were two realtime anomalies during the demo, covered by DRs G101976 
and G101977. However, another anomaly was detected during our post-demo 
analysis. Approximately 1% of our data received at the MOC and recorded at 
CDR was corrupted. Lastly, the FOT is awaiting further information from the 
SIMSS developers regarding the 0158 monitor data. An investigation is 
on-going to isolate the source of the corrupted 0158 monitor data.  The 
next ACE NSP D24 demo is scheduled for DOY 354 (12/20/02).

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The HGA Angle Constraint Report is still being reviewed.

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Anomalies:

DOY 02341 (12/07/2002)-ACE Anomaly #G02-0132 GDS(DSS-27) Lost AMC Interface
Antenna Monitor Control (AMC) interface lost prior to AOS.  After several 
attempts, D27 could not get the computer to reset, so a technician was sent 
to the antenna to perform the reset.  A delayed AOS of approximately 15 
minutes.  IMPACT:  None. All data was recovered during the pass.  DR#G101982

DOY 02343 (12/09/2002)-ACE Anomaly #S02-0027 SSS75I YL Limit Violation
At 17:27:18, SSS75I violated the Yellow Low limit of 11mA.  The current 
dropped to 9.8mA and then returned to 11.76mA at 17:30:20.  Mark Popecki 
notified.  IMPACT: Unknown at this time.

DOY 02344 (12/10/2002)-ACE Anomaly #G02-0133 GDS(DSS-27) Lost AMC Interface
Antenna Monitor Control (AMC) interface lost prior to BOT. The station 
dispatched an operator to DSS27 to correct the problem.  AOS was delayed 
approximately 12 minutes.  IMPACT:  None.  All data recovered during pass.








~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Glen A. Miller
Honeywell Technology Solutions Inc.

ACE Flight Operations Team
Goddard Space Flight Center
Building 14, Room W10A
Mail Stop 428.2
Greenbelt, MD 20771

Office: 301-286-7071
Pager: 800-425-3174
Fax:    301-286-1729
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~