ACE Weekly 06/06/03 - 06/12/03

All ACE spacecraft subsystems are performing nominally. An attitude 
maneuver was successfully executed on 06/06/03. The next attitude maneuver 
is schedule for 06/23/03.

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Orbit Events:

Currently in SEV transit:

Entry: 06/01/03 at 1442Z
Minimum angle: 2.18 degrees on 06/13/03 at 1618Z
Exit: 06/25/03 at 1652Z

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OCRs Executed:

Day 03160 (6/09/2003) - Executed EPAM-004 to reset the F-Strobe command to 
return the threshold to its original design.

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Ongoing Activities:

TAPS:
Trending, Analysis and Plotting System (TAPS) development continues with 
emphasis being placed on fixing the DRs attributed to the current release. 
Testing is progressing on both TAPS#1 and TAPS#2.

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Automation (ROBOTT):
Testing of the Offline and HSM systems is progressing. Testing by the 
Automation team for Command and Control is still paused due to testing at 
WIND. The first release of Command and Control to the FOT is still TBD.

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Anomalies:

Day 03162 (6/11/2003) ACE Anomaly Report #G03-0049 GDS 26m (DSS-66) Late 
AOS/Degraded Data
At 15:18, DSS-66 reported problems with TCP1.  D66 stated they would swap 
from TCP1 to TCP2.  After swapping to TCP2, telemetry was put online and 
received.  At 15:33, the FOT informed DSS-66 of VC2 errors.  DSS-66 
reported seeing similar problems along with low SNR's.  At 15:36, DSS-66 
reported possible problems with TCP2.  DSS-66 stated they would be 
switching back to TCP1.  At 15:37, the TCP swap was complete.  Data from 
TCP1 looking good.  At 16:00, the FOT informed DSS-66 that data was still 
clean.    IMPACT:  Delayed pass activities. All data was recovered.  DR# 
M101661

Day 03162 (6/11/2003) ACE Anomaly Report #G03-0050 GDS JPL COMM - Network 
Data Hits
At 17:51, the FOT reported degraded data to JPL COMM (possible network 
hits).  At 18:07, after checking into the problem, JPL COMM confirmed the 
problems with the network.  The hits started at 17:42:30 and ended at 
17:43:20. JPL COMM confirmed network problems during the pass. 
IMPACT:  None.  All data was recovered from CDR.  DR# N101082





~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Glen A. Miller
ACE Flight Operations Observatory Engineer
Honeywell Technology Solutions Inc.
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
Email: gamiller@pop500.gsfc.nasa.gov
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~