ACE Weekly 10/10/03 - 10/16/03 All ACE spacecraft subsystems are performing nominally. An attitude maneuver was successfully executed on 10/13/03. The next attitude maneuver is scheduled for 10/24/03. ============================================================================ Orbit Events: The next SEV transit will occur November 26th through December 20th. The minimum SEV angle expected will be approximately 1.19 degrees. ===================================================================== OCRs Executed: NONE ===================================================================== Ongoing Activities: TAPS: Release 4.1.8 was delivered on 10/07/03. The FOT is currently testing this final release to ensure all DRs flagged as "essential to transition" have been fixed. ---------------------------------------------------------------------------- Automation (ROBOTT): - ROBOTT version 0.2 (OFFLINE) is operational on String 1. - Automation Team testing of HSM and Command & Control on String 3 continues. C&C is currently shadowing passes and an expected delivery date to the FOT is mid-to-late October. - The first draft of the SUG is expected soon. ===================================================================== Anomalies: DOY 03285 (10/12/2003) ACE Anomaly G03-0099 - GDS 34m (DSS-24) Telemetry Processor 5 Problem Telemetry was offline from DSS-24 for 37min. IMPACT: Delayed pass activities. All data subsequently recovered. DR# G103488. DOY 03286 (10/13/2003) ACE Anomaly G03-0100 - MAD 26m (DSS-66) Degraded Telemetry Degraded telemetry received from DSS-66 from 13:00:00 to 15:32:00. Reed-Solomon errors noticed by FOT. Cause Unknown. IMPACT: Degraded data. DR# N101486. DOY 03287 (10/14/2003) ACE Anomaly S03-0021 - S3DPU_CONV_SEC_I Red Limit Violation At 15:38:03, S3DPU_CONV_SEC_I violated the Red High limit at a value of 443.186 mA. It returned within the limit of 440 mA at 15:38:05. IMPACT: Unknown. Mark Popecki notified. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~