ACE Weekly Report: 02-28-01 All ACE spacecraft subsystems are performing nominally. Both an attitude maneuver and a Stationkeeping maneuver were performed on 02-23-01. The next attitude maneuver is scheduled for 03-02-01. Attitude Maneuver Start Time=15:59:22 End Time=16:04:38 Stationkeeping Start Time=17:24:32 End Time=17:26:22 Pre-Maneuvers HGA = -1.64 deg. Sun Angle = 11.41 deg. Post-Maneuver HGA = 4.18 deg. Sun Angle = 6.02 deg. Current S/C range: 1520467.860 km Anomalies: G01-0017: Offline script offline.gen halted due to /trend partition being full. Files were archived to tape and the script completed without incident. G01-0018: DSN Transmitter problems resulted in temporary loss of the command carrier on 02-24-01 (DOY 55). Station D16 contacted and the problem was resolved shortly thereafter. No further problems incurred doing the support (DR #G06777). G01-0019: On 02-26-01 (DOY 57) Station D24 informed the FOT during PreCal that due to problems with the new Uplink command system, the legacy system would be used to support the pass (DR #G06781). G01-0020: The FOT had contacted the MSOCC DOC on 02-26-01 to report the failure of the MOR's 4mm tape drive. Hardware maintenance/TELOS came and removed the MOR's 4mm tape drive without first powering down the workstation it was attached to (workstation 1). In addition a replacement drive was not provided and the cabling was left hanging. The device is 'daisy-chained' to several pieces of equipment; its removal impacted the ability of the remaining devices to communicate. This occurred ~1 hour before the beginning of activities. At the beginning of the support, the MOC's data processing software was non-responsive; it runs on the workstation that was locked up due to the problem with the 4mm tape drive. Displays that are nominally run off the affected workstation during a nominal support could not be brought up. In addition the FOT experienced a TPOCC anomaly at BOT and the MOR string needed to be recycled. It is not known if this was due to the 4mm tape drive issue. Realtime activities were then transitioned to the MAR and the support continued without further incident. Product delivery was delayed ~6 hours as a result.