ACE Weekly 01/30/03 - 02/05/04

All ACE spacecraft subsystems are performing nominally. No attitude 
maneuvers were executed this reporting period.  The next attitude maneuver 
is scheduled to occur on 02/06/04.

============================================================================
Orbit Events:

Per Craig Roberts (FDF):
The next ACE transit begins February 22 and ends March 15 (a span of 22.49 
days). This one will involve the closest angular approach to the Sun yet 
seen, i.e., 0.63 degree (deg) from solar center. (By comparison, the solar 
angular radius as seen from Earth at that epoch will be approx. 0.27 deg). 
The updated details and epochs (UTC) follow:

      22 Feb      05:22      4.75 deg inbound
      28 Feb      15:51      2.0 deg inbound
        1 Mar     17:19      1.19 deg inbound
        3 Mar     21:57      0.63 deg closest approach
        6 Mar     13:40      1.19 deg outbound
        8 Mar     17:55      2.0 deg outbound
      15 Mar     16:14      4.75 deg outbound

The 1.19 deg reference was included because that was the closest approach 
during the December transit. ACE will spend 4.85 days within the 1.19 deg zone.

=====================================================================
OCRs Executed:

None.

=====================================================================
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. The next two releases 4.2 and 4.2.1 are scheduled for 02/11/04 
and 03/03/04 respectively. Upon delivery of Release 4.2, TAPS should 
contain all functionality required to allow for TAPS transition.
- FOT currently reviewing TAPS System User's Guide.

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Automation (ROBOTT):
- Release 0.4 (HSM & OFFLINE) was installed on String 1 on 01/21/04. The 
Command & Control component was not delivered because it is NOT ready for 
operational use.
- Offline:  2 DRs have been fixed on String 3 and are ready for testing.
- HSM:  2 DRs have been fixed on String 3 and are ready for testing.
- Command & Control:  All 6 DRs opened for C&C have been fixed on String 3 
and are ready for testing.
- The RTMON subsystem is ready for testing on String 3.
- All FOT testing is slated to begin on 02/06/04.

=====================================================================
Anomalies:

DOY 04033 (02/02/04) ACE Anomaly G04-0009 - AC1WS3 Mouse Frozen
After the pass, AC1WS3 mouse stopped responding.  Keyboard and workstation 
working fine.  IMPACT:  None.  TSM replaced the mouse.

DOY 04034 (02/03/04) ACE Anomaly G04-0010 - Timezone Problem Requiring 
AC3FE1A Reboot
In Oct/Nov 2003, TSMs changed the timezone to GMT on all 3 strings.  But 
doing a remsh command generated output in EST (Eastern Standard 
Time).  Front Ends were rebooted by TSM.   IMPACT:  Automation developers 
were not able to get real-time monitor (RTMON) working due to this 
problem.  CCSA TT #2003100008


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