ACE Weekly 12/31/04 - 01/06/05 (dates corrected for 2005) All ACE spacecraft subsystems are performing nominally. ============================================================================ Orbit/Attitude: Maneuvers completed Type Attitude Date 01/04/05 DOY 004 2005 Thrusters 2R 4R+ 4R- Duration 11:40 minutes Start Time 16:16:41z Stop Time 16:28:21z Firing 59 pulses The next attitude maneuver is scheduled for 01/14/05. ============================================================================ OCRs: DOY 366 (12/31/04) SEP-071 30kV Discharge Flag Cleared The SBS30KVRESET command to clear the 30kV discharge flag was sent 17:20:52z. The flag was set on DOY 364 2004 at 06:08:32z. SSS30KV and SSS30KI, however, remained at nominal values. SWPX-037 is scheduled for 01/07/05. ============================================================================ Ongoing Activities: ROBOTT The patch to resolve the premature schedule deletion was successful. The patch will be removed 01/11/05 and included in the next release of ROBOTT. 22 DRs have been documented since delivery of v0.9. ============================================================================ Extra Activities: DOY 006 (01/06/05) DSN 26m Project Interface Test (PIT) A test of DSN's D5 26m software was completed with DSS-16 at 2315-2340z. The test was originally scheduled for 2220-2320z but was delayed due to equipment problems. The FOT is analyzing the data and will provide DSN with a summary report. ============================================================================ Anomalies: DOY 365 (12/30/04) ACE Anomaly G04-145 CMD Failure alarm not cleared ROBOTT/C&C sets the CMD Failure alarm if the station does not establish uplink within 5 minutes. ROBOTT/C&C, however, does not clear the alarm after uplink has been established. This is a known issue. CDSID#00021074 IMPACT: Manual intervention required to clear alarm and terminate beeping. DOY 366 (12/31/04) ACE Anomaly G04-0160 Post-pass activities not completed ROBOTT did not schedule post-pass activities on the last day of the year. The FOT manually completed activities. The developers have been notified and they have isolated the bug. CDSID#00021127 IMPACT: This problem will occur on 12/31 of every year. If post-pass activities are not completed, most file maintenance would be completed on the next day but the daily summary reports would need to be manually generated. DOY 004 (01/04/05) ACE Anomaly G05-0161 MOPSS failed to start properly MOPSS generated the following error messages while starting: Error while trying to retrieve text for error ORA-12154 Error accessing database. Cannot connect. MOPSS is used in processing maneuver command sheets. This is an intermittent problem that last occurred on 03/08/04. MOPSS was recycled and all processes successfully started. IMPACT: None.