ACE Weekly 04/01/2015 - 04/08/2015 ACE spacecraft subsystems are performing as expected. This weekly covers 8 days in order to include the maneuver performed on Wednesday. ======================================================================== Orbit/Attitude: Type Attitude Date 04/09/2015 DOY 099 2015 Thrusters 2R 4R+ 4R- Duration 9:50 minutes Start 00:07:14z Stop 00:17:04z ra,decStart 21.61,-2.91 ra,decStop 30.15,0.72 ra,decExpect 30.38,0.61 Deviation 0.25deg (-1.8%) HGAStart -8.64 deg HGAStop +7.96 deg SunStart 11.16 deg SunStop 14.58 deg SpinStart 5.0080 rpm SpinStop 5.0110 rpm Nutation 0.16 deg Firing 50 pulses FuelUsed 0.1558 lbm FuelRemain 99.2696 lbm FinalSCMass 1333.529 lbm The maneuver was delayed to early Thursday morning (4/9 0007z) due to DSN station problems (see anomalies below). The next maneuver is scheduled for Tuesday 4/14/2015. ======================================================================== OCRs: None ======================================================================== Activities: Data Capture: 100% DOY 088-095 2015 Science data playback will be behind due to two lost passes (see anomalies below). Playback will be caught up next week (Tuesday 04/14/2015). 04/08/2015 DOY 098 2250-0135 DSN SOE Software Test -- DSN's Sequence Of Events (SOE) file which provides the timeline for DSN equipment configuration was generated by the new 0211 interface. ======================================================================== Anomalies: DOY 097 04/08/2015 S-ACE-0697 G15-0006 DSN Madrid Site-wide Problem The ACE pass (1445-1730z) was lost due to a problem with DSN Madrid's Support Data Loader (SDL). The problem was resolved 11 minutes before EOT, which was insufficient for any activities. DR#M108688 IMPACT: The attitude maneuver was delayed to Thursday 4/9/2015. Playback of recorded data delayed and an additional pass was scheduled for DOY 098 (see below). No impact to NOAA SWPC since the spacecraft was in RTSW during this time. DOY 098 04/09/2015 S-ACE-0698 G15-0007 DSS-54 Antenna Motor The additional ACE pass (0600-0724z) was lost due to a problem with the antenna's elevation motor DR#C111058 IMPACT: Playback of recorded data delayed. SSR B full at 0824z. No impact to NOAA SWPC since the spacecraft was in RTSW during this time.