SOHO Daily Meeting Minutes for Monday, 12 March 2001 FOT REPORT ---------- Spacecraft Status: Nominal Spacecraft Anomalies: 069/0720 Hung EIT Sector Wheel Motor. Power to the LEB was cycled, per Contingency Script L-03, 18 minutes after initial detection as an uplink had to be established using D46. Other impacts unknown at this time. 069/0739 ETE1 and ETE4 violated red high limits. These violations occurred just after the power to the LEB was cycled (see previous anomaly). As a result, the LEB was reset, per Contingency Script L-02. Other impacts unknown at this time. NOTE FROM SOCs: The indication seen was that the EIT Sector Wheel -------------- Motor had hung. However, this indicator can be triggered by other EIT mechanism anomalies. In this case, it was the shutter that was stuck. The action taken by the FOT was correct for either case. 071/0411 CEPAC ESU Data Request Error. CEPAC's onboard software autonomously recovered after 4 minutes. Accomplished Activities: 068: VIRGO, SWAN, RSL New control star, mag = 7.1 New tracking star, mag = 4.9 069: VIRGO 070: VIRGO Planned Activities: VIRGO, CELIAS Upcoming Operations: None Ground Anomalies: 068/1742 Late AOS as D27 had difficulty acquiring the downlink. AOS was 2 minutes late. No data loss as D65 was still up in support. 070/0900 Late AOS from D66 due to TGC failure. AOS was 4 minutes 25 seconds late. No data loss as the spacecraft was in record at the time. SOLAR STATUS ------------ 03/09 DOY 068 - 03/12 DOY 071 EIT daily On-Line Solar Status and observations: http://umbra.nascom.nasa.gov/eit/plan/log_form20010312.html LASCO daily On-Line Solar Status and observations: http://lasco-www.nrl.navy.mil/observations/2001/obs20010312.html HESSI default target for test run: AR 9368 ---------------------------------(mis-identified as 9238 in HESSI announcement) JOP137 Target: AR 9368 ------------- INSTRUMENT STATUS ----------------- CDS: Nominal. JOP137 on AR 9368 today. Tuesday CDS will do synoptics and instrument monitoring studies. SUMER: Nominal. JOP137 on AR 9368. Tomorrow starting Super-Refspecs off south west limb, not changing until Thursday. UVCS: Nominal. Streamer observations and synoptic. LASCO: Nominal. C2 and C3 synoptics. EIT: Nominal. Half resolution 195 Angstrom CME watch and synoptics. MDI: Nominal. Cropped full disk magnetograms and dopplergrams in best focus for continuous contact. TRACE: Nominal. Active region belt observations (AR 9373 today).