ACE Weekly 06/04/04 - 06/10/04

All ACE spacecraft subsystems are performing nominally.  Attitude and spin 
control maneuvers were executed successfully on 06/10/04. The next attitude 
maneuver is scheduled for 06/25/04.

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Orbit Events:

The ACE transit of the old Solar Exclusion Zone (SEZ) will continue through 
06/14/04. For the first time ever, ACE transited the solar disk on 
06/01/04. On that date, the Sun's angular radius was 0.2629 degrees (as 
seen from Earth's center). The solar transit lasted nearly 21 hours (again, 
as seen from Earth's center). The main features of this transit are given 
in the following table (times are UTC).

5/19    01:42   4.75 deg inbound
5/27    07:45   2.0 deg inbound
5/30    23:39   0.63 deg inbound
6/01    01:18   0.2629 deg (kissing solar disk inbound)
6/01    10:46   0.197 deg (radius of closest approach to solar center)
6/01    22:14   0.2629 deg (kissing solar disk outbound)
6/02    23:28   0.63 deg outbound
6/06    11:15   2.0 deg outbound
6/14    07:18   4.75 deg outbound

The 0.63 deg epochs are included because that radius represents the closest 
approach during our last transit in February/March. ACE will spend almost 
exactly 3 days within this zone.

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OCRs Executed:

NONE

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Ongoing Activities:

TAPS:
- Transition from GTAS to TAPS occurred on 03/18/04. All trending 
activities are being accomplished using TAPS.
- Installation of TAPS release 4.3 is tentatively scheduled for the first 
week of July 2004.  All open DRs will be fixed in this release.

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Automation (ROBOTT):

- Release 0.6 was installed on String 1 on 05/13/04.
   -- Release 0.6 will not be used operationally, however testing is ongoing.
- Release 0.7 is on-schedule for a 06/17/04 release to String 3.
- SUG development is ongoing.  A DRAFT version has been delivered and is 
still being reviewed by the FOT.  Comments will be provided to the developer.
- FOT training on ROBOTT began 05/05/04 and additional sessions are being 
developed.

============================================================================
Extra Spacecraft Activities:

NONE

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

DOY 04157 (06/04/04)  ACE Anomaly G04-0048 - DPS Product Generation Error
DPS Products (src2 & src3) generated errors.  FOT in response created 
No_Repeat product specs for DOY 157 products.  IMPACT:  None.

DOY 04160 (06/08/04)  ACE Anomaly G04-0049 - DPS/Oracle Problems After Tape 
Recovery
Oracle/DPS still not functioning properly after database recovery 
(string2), see AR# G04-0046.  Receiving DPS message (Note, the RM task 
deals with releasing Sessions and Products.)  IMPACT:  None, this is the 
backup string.  TT# 2004060001

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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
gamiller@pop500.gsfc.nasa.gov
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~