ACE Weekly 06/04/2008 - 06/10/2008 All ACE spacecraft subsystems are performing nominally. ============================================================================ Orbit/Attitude: No maneuvers were completed this week. The next attitude maneuver is scheduled for Friday 06/13/2008. =========================================================================== OCRs: None ============================================================================ Activities: There have been no updates on the JPL ISO router problem that resulted in several lost ACE passes in May (DOY 124-126 and DOY 134). ============================================================================ Anomalies: DOY 156 06/04/2008 S-ACE-0327 G08-0064 AC2WS2 Workstation Problems AC2WS2 has been having intermittent problems. SysAdmins believe the problem is with the hard drive. Troubleshooting continues as resources are available. IMPACT: Hardware failures have increased in 2008 but have been manageable. DOY 157 06/05/2008 S-ACE-0328 G08-0065 DSS-27 Antenna Stopped Antenna stopped tracking at 2118z. Station performed a reset and telemetry was re-established at 2129z. Uplink was established at 2131z. DR#G108650 IMPACT: Minimal. 11 minute telemetry outage. SSR playback had already completed. Final commanding for spacecraft state-of-health checks was delayed by 7 minutes. DOY 158 06/06/2008 S-ACE-0329 G08-0066 DSN Schedule Not Downloaded The workstation used for downloading the DSN schedule for automation was rebooted for the bi-annual backup. The process for downloading the schedule did not restart after the reboot. IMPACT: Manual intervention required to restart the schedule download process and update pass times for automation.