SOHO Daily Meeting Minutes for Monday, 10 December 2001 ANNOUNCEMENTS ------------- * A rapid turn-off/turn-on sequence can be designed for use by the FOT, for instruments that may require a quick power cycling at the Local Current Limiter (LCL) level. We'd like to know if any team is interested in such a procedure being available for their instrument. Current procedures involve things that are more appropriate for intermediate-/long-term shutdowns, like substitution heater changes etc. * There are problems with DPS, so Quicklooks may be late or not coming during overnight/weekend periods. FOT REPORT ---------- Spacecraft Status: Nominal Spacecraft Anomalies: 342/0924 CDS mnemoninc, CUVMCP, violated red low limits for 1 minute 45 seconds. CDS personnel notified. Impacts TBD. Accomplished Activities: DOY 341: VIRGO, SWAN, RSL, New control star, mag = 6.5, New tracking star, mag = 7.1 DOY 342: VIRGO DOY 343: VIRGO Planned Activities: VIRGO, New tracking star, mag = 6.3 Upcoming Operations: Jan 2 ACU/CDMU Memory Dumps Ground Anomalies: 342/2020 D27 lost uplink lock on spacecraft receiver 2, cause unknown. Lost ability to command for five minutes. DR #G100592. 343/1345 Late carrier up as D24 was using an incorrect exciter frequency (receiver 1 vice receiver 2). Commanding activities delayed 5 minutes. DR #G100593. 343/1800 D46 required two sweeps in order to lock uplink on spacecraft receiver 2, reason unknown. delayed commanding activities 3 minutes. 344/0620 D66 was unable to establish a solid uplink becuase of an incorrect command modulation index value. Lost command ability for 1 hour 15 minutes. Lost 1 hour 23 minutes of potential MDI high-rate data. Lost 1 hours 54 minutes of range data. DR #M100366. 344/0626 TGC failure at D66 delayed pass activities 14 minutes. DR #M100365. SOLAR STATUS ------------ 12/07 DOY 341 - 12/10 DOY 344 EIT daily On-Line Solar Status and observations: http://umbra.nascom.nasa.gov/eit/plan/log_form20011210.html LASCO daily On-Line Solar Status and observations: http://lasco-www.nrl.navy.mil/observations/2001/Todays_obs.html Web Page for Planning: http://www.bbso.njit.edu/arm INSTRUMENT STATUS ----------------- CDS: Nominal. AR streamer study with UVCS and Yohkoh, instrument monitoring studies. Tomorrow: AR streamer study with UVCS and Yohkoh, polarity reversal monitoring study at the north pole. UVCS: Nominal. AR streamer study on AR 9718 with CDS and Yohkoh and mini-synoptic. Tomorrow: finish AR streamer study with CDS and Yohkoh, begin star observations, and long synoptic. LASCO: Nominal. C2/C3 synoptics. EIT: Nominal. 195 Angstrom CME watch and synoptics, engineering today. MDI: Nominal. Full disk magnetograms and dopplergrams. TRACE: Nominal. Observing AR 9727.