ACE Weekly 01/07/2009 - 01/13/2009 All ACE spacecraft subsystems are performing nominally. ============================================================================ Orbit/Attitude: Type Attitude Date 01/09/2009 DOY 009 2009 Thrusters 2R 4R+ 4R- Duration 14:43 min Start 22:22:31z Stop 22:37:14z HGAStart -6.63deg HGAStop +7.63deg SunStart 6.64deg SunStop 14.45deg SpinStart 4.9982rpm SpinStop 5.0023rpm Nutation 0.10deg Firing 74 pulses FuelUsed 0.2403lbs FuelRemain 145.2760lbs FinalSCMass 1379.536lbs The next attitude maneuver is scheduled for Wednesday 01/21/2009. =========================================================================== OCRs: None ============================================================================ Activities: Data Capture: 100% DOY 004-011 2009 There is a higher than normal risk of data loss from October 2008 through February 2009. If there are problems with the passes, it may not be possible to acquire additional DSN time. This higher-risk period has been occurring every winter for the past couple of years. For more information refer to 10/14/2008 weekly. ============================================================================ Anomalies: DOY 012 01/12/2009 S-ACE-0408 G09-0005 AC1SLE1 Reboot AC1SLE1 keyboard, mouse and monitor were not responsive. The workstation was still running and could be remotely logged into; SLE was working successfully over the weekend. SysAdmins rebooted the computer before Monday's pass and no further problems were encountered. IMPACT: Minimal.