ACE Weekly 05/15/2013 - 05/21/2013 All ACE spacecraft subsystems are performing as expected. ======================================================================== Orbit/Attitude: Type Attitude Date 05/21/2013 DOY 141 2013 Thrusters 2R 4R+ 4R- Duration 7:43 min Start 14:23:07z Stop 14:30:50z HGAStart -8.38 deg HGAStop +9.02 deg SunStart 10.98 deg SunStop 16.27 deg SpinStart 4.9445 rpm SpinStop 4.9462 rpm Nutation 0.17 deg Firing 38 pulses FuelUsed 0.1246 lbm FuelRemain 114.0508 lbm FinalSCMass 1348.311 lbm The next attitude maneuver is scheduled for Tuesday 05/28/2013. ======================================================================== OCRs: None ======================================================================== Activities: Data Capture: 100% DOY 132-139 2013 The WS1 antenna (Near Earth Network) has requested range/uplink tests with ACE. These tests will be performed in-between DSN passes. No additional range tests with the Santiago antenna have been requested since the test completed on 4/15/2013. The only impact from the moderate long duration solar storm over the past week was the closing of the ULEIS shutter. Usually, the shutter stays closed for a day or two, but was closed for 3.5 days for this solar storm. Fri May 17 2013, DOY 137 18:06:45z closed to 25% Tue May 21 2013, DOY 141 05:42:13z opened to 100% ======================================================================== Anomalies: None