ACE Weekly 11/10/2006 - 11/16/2006 All ACE spacecraft subsystems are performing nominally. ============================================================================ Orbit/Attitude: No attitude maneuvers were completed this week. The next attitude maneuver is scheduled for Friday, 11/17/2006. ============================================================================ OCRs: OCR GND-170 will be executed on 11/21/2006 (DOY 325). This will reset the epoch to the original value calculated after launch which is 1997 237 15:48:24.604. This epoch will be used starting with the clock calibration report for DOY 324 2006. Over the years, the epoch has been incorrectly redefined while trying to troubleshoot clock calibration problems. This has caused different epochs to be used over the years. The ACE Science Center has been correcting the epoch while it has been incorrectly defined. UTC Clock Epoch Defined during 1997 237 15:48:24.6040 237/1997-223/1998 1997 237 15:47:44.4111 224/1998-365/1999 1997 237 15:46:42.9892 001/2000-122/2000 1997 237 15:46:28.0491 123/2000-323/2006 1997 237 15:48:24.6040 324/2006-rest of mission life OCR GND-174 TPOCC r5.3 String 3 testing is being completed. Installation on String 2 is being scheduled for next week. ============================================================================ Activities: Automation - A ROBOTT SPS patch has been generated to provide the SPS password in the SOAP request. DSN recently upgraded to SPS V1.0.5b which requires this password. Delivery and installation of the ROBOTT SPS patch is being scheduled. DSN has currently scheduled their DDR for 11/20/2006 and the elimination of the current NSS server for 11/27/2006. RIONET - String 3 IP addresses will be configured for the RIONet 11/28/2006 through 11/30/2006 (DOY 332-334). The next RIONet meeting is scheduled for 11/21/2006. Space Link Extension (SLE) - ACE SLE version 2.1 was delivered to the Library on April 28, 2006. Installation in the ACE MOC will not occur until after the MOC is converted to the RIONET. DSN's available time continues to be limited. SSR playback is increasingly not completed until subsequent supports. While trying to catch up, no redumps of data gaps are performed. Data loss has been minimal so far. ============================================================================ Anomalies: DOY 314 (11/10/2006) S-ACE-0101 (G06-0104) - ROBOTT/C&C Froze ROBOTT froze after procedure S_OPS_PLBK_COMPLETE completed (EOT-5minutes). RTMON restart not performed since 5 minutes before End of Track. CDSID#00021192 IMPACT: This is a recurring issue that the ROBOTT developers are aware of. Procedure G_ACEDOWN not performed. DOY 318 (11/14/2006) S-ACE-0113 (G06-0105) - DSS-46 Incorrectly Configured DSS-46 was incorrectly configured for a ranging only pass instead of the requested full tracking pass. FOT notified Ops Chief from home at 1:40am EST. DSS-46 was reconfigured by 1:55am. IMPACT: Activities delayed 30 minutes. SSR playback completed on the following support. DOY 319 (11/15/2006) S-ACE-0114 (S06-0012) - S3DPU_CONV_SEC_I RH Limit S3DPU_CONV_SEC_I had 1 brief red high limit violation (RH > 480 mV). 2006-319 18:29:36 - 18:29:37 482.406-490.25 mV Mark Popecki was notified. IMPACT: The last S3DPU_CONV_SEC_I red high limit violation was DOY 223 2006.