ACE Weekly 06/04/2014 - 06/10/2014 All ACE spacecraft subsystems are performing as expected. ======================================================================== Orbit/Attitude: Type Attitude Date 06/10/2014 DOY 161 2014 Thrusters 2R 4R+ 4R- Duration 8:09 min Start 16:26:48z Stop 16:34:57z ra,decStart 81.86,39.22 ra,decStop 91.99,38.97 ra,decExpect 91.84,39.06 Deviation 0.15 deg HGAStart -10.87 deg HGAStop +11.06 deg SunStart 16.51 deg SunStop 19.69 deg SpinStart 4.9954 rpm SpinStop 4.9974 rpm Nutation 0.13 deg Firing 41 pulses FuelUsed 0.1314 lbm FuelRemain 106.2856 lbm FinalSCMass 1341.545 lbm The next attitude maneuver is scheduled for 06/17/2014. ======================================================================== OCRs: DOY 157 (6/6/2013) 1519-1521z SIS-063 2 cmds Noisy Matrix detector strip M1B HV #14 was disabled. This strip had been re-enabled on 01/22/2013 along with 3 other strips (M1B HV #2, #18, #33). The other 3 strips were subsequently re-disabled this past fall/winter (#2 10/29/2013, #18 11/20/2013, #33 12/30/2013). ======================================================================== Activities: Data Capture: 99.41% DOY 152-159 2014 DOY 157 07:14:47-07:14:49 3 seconds lost DOY 157 13:53:07-13:59:41 395 seconds lost 6min 35sec DOY 157 13:59:42-14:52:39 3178 seconds covered by ADC 52min 58sec DOY 159 09:49:48-09:50:18 31 seconds lost The recorder playback had been behind when DSN's DSS-54 station had transmitter problems. A short 1-hour pass was scheduled to recover most of the 7.5 hours of remaining data before the recorder failover erased it. ADC data includes: CRIS, EPAM, MAG, SIS, and SWEPAM-I but does not include: SWEPAM-E, SWICS, SWIMS and ULEIS ======================================================================== Anomalies: DOY 158 06/07/2014 S-ACE-0678 G14-0006 DSS-54 Transmitter Problem The DSS-54 transmitter was unavailable for the complete pass, "Unable to Cal XMTR. Alarm; Cal error cannot set Drive power". Since pass activities are initiated from ground command, no recorded data was recovered. DR#M108022 IMPACT: The recorder playback had been behind due to short passes over the previous 3 days. A short 1-hour pass was scheduled to recover most of the 7.5 hours of remaining data. 7.2 minutes of data was lost from all instruments, another 43 minutes lost from SWEPAM-E, SWICS, SWIMS and ULEIS.