ACE Weekly 10/22/04 - 10/28/04 All ACE spacecraft subsystems are performing nominally. No maneuvers executed this reporting period. The next attitude maneuver is scheduled for 11/05/04. ============================================================================ Orbit Events: Next SEZ transit will run from 11/14/04 to 12/09/04. - Minimum SEV angle of approximately 0.83 deg. Minimum SEV angles of 2005 transits will be greater with each event. ===================================================================== OCRs Executed: None ===================================================================== Ongoing Activities: TAPS: - TAPS Release 4.3 was installed on the Prime System on 10/13/04. -- FOT regression testing is in progress. --- No problems to report. ---------------------------------------------------------------------------- Automation (ROBOTT): - ROBOTTv0.9 delivered to String 1 on 09/27/03 (OCR GND_145). -- Performing operations in "Auto" mode on String 1. -- 13 DR fixes in this release. --- 12 DRs have been verified by the FOT to date. --- The last DR to be verified will require ROBOTT to be observed over a period of time to ensure no reoccurrence of the problem. -- 10 DRs have been written against this release. - Lights-out testing of the ROBOTT system without immediate FOT intervention continues. ============================================================================ Extra Spacecraft Activities: None ===================================================================== Anomalies: DOY 04295 (10/22/04) ACE Anomaly G04-0123 - GDS 34m (DSS-27) Telemetry Dropped FOT initiated a schedule change during pass to change EOT time. Email was sent to OPS Chief changing EOT time from 22:25Z to 23:00Z. DSS-27 operator was unaware of change and dropped telemetry at original EOT time. Upon being advised of change DSS-27 operator put telemetry back on-line. IMPACT: None. All telemetry subsequently retrieved via SSR. DOY 04302 (10/28/04) ACE Anomaly G04-0124 - ADS Display Froze FDF personnel attempted to run ADS software and display froze. The process was killed and software was rebooted. IMPACT: None. FDF obtained attitude solution at end of pass. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~