ACE Weekly 02/05/2015 - 02/10/2015 ACE spacecraft subsystems are performing as expected. ======================================================================== Orbit/Attitude: Type Attitude Date 02/10/2015 DOY 041 2015 Thrusters 2R 4R+ 4R- Duration 10:05 min Start 16:02:38z Stop 16:12:43z ra,decStart 311.75,-11.03 ra,decStop 315.16,-19.25 ra,decExpect 315.53,-19.86 Deviation 0.70 deg (-7% short) HGAStart -8.14 deg HGAStop +0.94 deg SunStart 12.28 deg SunStop 9.66 deg SpinStart 5.0003 rpm SpinStop 5.0016 rpm Nutation 0.12 deg Firing 51 pulses FuelUsed 0.1558 lbm FuelRemain 101.0744 lbm FinalSCMass 1335.336 lbm The next attitude maneuver and station-keeping maneuver will be Tuesday 2/17/2015. ======================================================================== OCRs: None ======================================================================== Activities: Data Capture: 100% DOY 032-039 2015 Santiago (Near Earth Network) continues their ranging tests while ACE is in the low downlink rate. The data will be used in preparing for the DSCOVR mission. No tests have been scheduled for the upcoming week. 02/04/2015 DOY 035 1900-2000z (originally 1845-1945z) 02/04/2015 DOY 035 2020-2130z (originally 2000-2100z) 02/05/2015 DOY 036 1905-2000z (originally 1845-1945z) 02/05/2015 DOY 036 2020-2120z (originally 2000-2100z) 02/06/2015 DOY 037 1530-1630z (originally 1510-1610z) 02/06/2015 DOY 037 1705-1750z (originally 1630-1730z) 02/10/2015 DOY 041 1957-2052z (originally 1915-2015z) The DSCOVR launch has slipped several times. Because pass activities are initiated via ground command, ACE is very flexible in inserting passes when previously occupied antenna time becomes available. 2/5/2015 DOY 036 - NASA/NISN has 2 SCDs (Small Conversion Device) at VAFB for routing data from AFSCN. These SCDs also route ACE data from AFSCN to NOAA SWPC via the GSFC MMOC when the usual SWPC antennas are not available. The second SCD has been transitioned to be solely for DSCOVR data. ======================================================================== Anomalies: None