ACE Weekly 05/23/03 - 05/29/03 All ACE spacecraft subsystems are performing nominally. No maneuvers were executed during this reporting period. The next attitude maneuver is scheduled 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. Release 4.1.3 was installed on 05/27/03 but it has been determined that a re-release is required because there were some installation problems on both systems (TAPS#1 and TAPS#2). The re-install should occur on 05/30/03 and will be Release 4.1.4. ---------------------------------------------------------------------------- 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 03143 (05/23/2003) ACE Anomaly Report #G03-0042 - GDS 26m (DSS-66) Equipment Problem DSS-66 servo hydraulics heat exchanger was down at AOS. DSS-54 was brought online to fill-in until DSS-66 was capable of support. DSS-66 took over the pass at 15:03 GMT. IMPACT: Delayed pass activities. All telemetry was recovered. DR# M101622 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~