ACE Weekly 01/09/03 - 01/15/04

All ACE spacecraft subsystems are performing nominally. No maneuvers were 
executed this reporting period.  The next attitude maneuver will occur on 
01/16/04.

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Orbit Events:

The next SEZ event will start around 02/22/04 and the minimum angle will be 
approximately 0.645 degrees.

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OCRs Executed:

None.

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Ongoing Activities:

TAPS:
Release 4.1.13 was delivered on 01/06/04 and is currently being tested by 
the FOT. Open DRs have been prioritized by the FOT in preparation for 
transition.

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Automation (ROBOTT):

- ROBOTT version 0.3 (Offline) is operational on String 1.
- ROBOTT Version 0.4 has been installed on String 2 and is currently being 
tested by the FOT. This release included HSM, Offline, and Command & 
Control. Testing of DRs fixed in Release 0.4 is progressing well. There is 
only 1 more DR to be tested. CRON testing of Release 0.4 began 
1/13/04.  Both advisory and auto modes of C&C have been tested by the FOT. 
There seems to be some problems running C&C in auto mode, but this was 
expected.
- The only component not delivered to the FOT for testing is the Real-time 
Monitor.

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Anomalies:

DOY 04014 (01/14/04) ACE Anomaly G04-0008 - GDS 26m (DSS-16)  Incorrect 
Command Mod Index
Attempts to command spacecraft failed, no indication from spacecraft of 
receipt of command.  Notified DSS-16 of situation and requested 
verification of command mod index.  Once correct command mod index was 
verified the FOT attempted to command spacecraft with no 
success.  Requested station manually re-enter the command mod index of 
0.86dB.   Subsequent commands were successful.  See ACE Anomalies 03-0064, 
03-0074, 03-0076, and 03-0107.  IMPACT:  Delayed pass activities.  DR #G103948

DOY 04015 (01/15/04) ACE Anomaly S04-0001 - Mnemonic ULEIS_LVPS_I Yellow 
High Violation
While testing our new Trending system it was discovered that the mnemonic 
ULEIS_LVPS_I has been violating its Yellow High limit of 0.43 consistently 
since Launch.   TPOCC didn't catch the violation because the limit switch 
value is truncated during compilation of the database and thus never 
triggers limit checking.  Notified Bruce Andrews.  IMPACT:  None.  The 
current on ULEIS is as its supposed to be.  Limits are to be updated per 
Bruce Andrews email.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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
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