ACE Weekly 01/16/03 - 01/22/04

All ACE spacecraft subsystems are performing nominally.  An attitude 
maneuver was successfully executed on 01/16/04.   The next attitude 
maneuver is scheduled to occur on 01/28/04.

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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.

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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.  The FOT will verify 7 DRs in this release.
- The Automation team is currently fixing and testing OPEN DRs on String 3.
- The FOT will able to begin testing new fixes on String 3 next week.

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

NONE
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~