ACE Weekly 09/01/06 - 09/07/06 All ACE spacecraft subsystems are performing nominally. ============================================================================ Orbit/Attitude: Type Attitude Attitude Date 08/30/2006 09/07/2006 DOY 242 2006 250 2006 Thrusters 2R 4R- 4R+ 2R 4R- 4R+ Duration 8:19 min 10:54 min Start 15:26:30z 15:23:02z Stop 15:34:49z 15:33:56z StartHGA 5.40 deg 5.87 deg StopHGA 6.34 deg 6.55 deg Firing 42 pulses 55 pulses FinalSCMass 1395.615lbs 1395.430lbs *****Correction for final s/c mass from 8/30/06. The next attitude and station keeping (#41) maneuvers are scheduled for Tuesday, 09/19/06. ============================================================================ OCRs: GRD-166 - 09/01/06 - OpenSSL and new Perl libraries were installed on the ACEDDS for the upcoming DSN SPS Transition. ============================================================================ Ongoing Activities: Attitude Training - The OE's will begin training the remainder of the FOT on attitude determination, maneuver planning, and maneuver execution beginning September 11. RIONET - The transition to the RIONET on String 3 will tentatively occur around mid-September. Space Link Extension (SLE) - ACE SLE version 2.1 was delivered to the Library on April 28, 2006. The delivery to the ACE MOC will not occur until after the MOC is converted to the RIONET. Multi-Mission MOC - The FOT has begun supporting the effort to determine the feasibility of transferring to a multi-mission MOC. Automation - Development for the next ROBOTT automation release in ongoing on String 3 and the ACEDDS. A ROBOTT SPS release is expected no later than September 18. ============================================================================ Extra Activities: The FOT transitioned to the online Goddard SOARS database for anomaly reporting on September 1, 2006. The kickoff Configuration Control Board (CCB) Meeting was held September 6. ============================================================================ Anomalies: DOY 250 (09/07/06) S-ACE-0001(G06-0081) Thruster Setup Procedure Ver. 2 The thruster setup procedure was exported a second time while waiting for the MOPSS box to turn yellow. This changed the version from a2006250_01cmds to a2006250_02cmds. IMPACT: None. The procedure was valid and the FOT used it. DOY 250 (09/07/06) S-ACE-0002(G06-0082) Incorrect Maneuver Summary Report The maneuver summary for DOY 250 2006 did not include the spacecraft weight (field was blank). Investigation found that the maneuver summary report for DOY 242 2006 did not have the correct spacecraft weight (incorrect: 1395.266lbs, correct: 1395.615lbs). IMPACT: The corrected information was sent to FD.