ACE Weekly 10/24/2012 - 10/30/2012 All ACE spacecraft subsystems are performing as expected. Hurricane Sandy impacts: The attitude maneuver was moved from Tue 10/30/2012 to Sun 10/28/2012. NOAA SWPC did not use Wallops (WCDA) for ACE RTSW. ======================================================================== Orbit/Attitude: Type Attitude Date 10/28/2012 DOY 302 2012 Thrusters 2R 4R+ 4R- Duration 8:20 min Start 16:11:41z Stop 16:20:01z HGAStart -6.81deg HGAStop +8.96deg SunStart 9.06deg SunStop 9.53deg SpinStart 5.0761rpm SpinStop 5.0777rpm Nutation 0.07deg Firing 43 pulses FuelUsed 0.1381lbs FuelRemain 118.7416lbs FinalSCMass 1353.002lbs The attitude maneuver was originally scheduled for Tuesday 10/30/2012, but performed on Sunday 10/28/2012 in preparation of Hurricane Sandy. There will be 9 days between this maneuver and the next. Adding 2 days between maneuvers will reduce the upcoming average sun angle by ~0.5 degrees. The next attitude maneuver is scheduled for Tuesday 11/06/2012. averages from 10/23/2012 to 10/28/2012 SEV Angle 3.3 deg Sun Angle 9.3 deg ======================================================================== OCRs: None ======================================================================== Activities: Data Capture: 100% DOY 295-302 2012 A second WS1 certification pass was completed on 10/25/2012. There were no problems with WS1. However, NOAA SWPC is not successfully processing the SIS data that is forwarded from WS1. NOAA is successfully processing the MAG, EPAM and SWEPAM data from WS1. The current theory is that this is a buffering problem. We hope that the changes implemented to the MMOC software before the third WS1 certification pass will resolve the issue. NOAA SWPC did not use Wallops (WCDA) for ACE RTSW during Hurricane Sandy. The gap between the antenna in Germany (DLR) and the antenna in Japan (NICT) was mostly covered by the SWPC antenna in Boulder, Colorado and the DSN passes. NICT was unavailable starting 10/31/2012 0200z, but that's unrelated to the hurricane. Note, NOAA SWPC operations are separate from the GSFC Flight Operations, but SWPC information is included in this report when it is known and interesting. ======================================================================== Anomalies: DOY 298 10/24/2012 S-ACE-0622 G11-0049 ITOS processes not finishing Starting Wednesday 10/24/2012 (DOY 298), some processes started with the ITOS "system" directive were hung and not finishing. Some processes completed successfully (e.g. ace_create_s_dumplist, ace_clock_data, pass_summary, etc) and others did not (ace_data_fwd, ace_clock_report, moving files). The WIND ITOS context was not impacted. ITOS was restarted Thursday (DOY 299). This problem last occurred on 02/24/2012 (DOY 055 2012). IMPACT: Empty clock report file sent to ASC on 10/24/2012; corrected files was resent on 10/25/2012. No data forwarding to NOAA SWPC for ~40 minutes on 10/25/2012. Other hung system processes had minimal impact.