ACE Weekly 05/16/03 - 05/22/03 All ACE spacecraft subsystems are performing nominally. An attitude maneuver was successfully executed on 05/22/03. The next attitude maneuver is schedule for 05/30/03. ============================================================================ Orbit Events: The next expected SEV transit is to occur: Entry: 06/01/03 at 1442Z Minimum angle: 2.18 degrees on 06/13/03 at 1618Z Exit: 06/25/03 at 1652Z ============================================================================ OCRs Executed: NONE ============================================================================ 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. A new release is scheduled for installation on 05/27/03. ---------------------------------------------------------------------------- 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. ============================================================================ Anomalies: Day 03141 (05/21/2003) ACE Anomaly Report #G03-0041 - GDS 26m (DSS-66) Delayed AOS At 15:15:00 DSS-66 asked if the S/C was "ON". After FOT confirmed that S/C was "ON", DSS-66 stated they were having trouble acquiring the S/C. At 15:23:00 DSS-66 informed us that they were having difficulty with the antenna pointing equipment (MPA). At 15:33:25 DSS-66 put telemetry online. AOS was delayed for 13min 25 sec. IMPACT: Delayed pass activities. All telemetry was recovered. DR# M101617 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~