SOHO Daily Meeting Minutes for Wednesday, 15 Sept. 1999 Chaired by: J. Hollis (SOC) Notes by: K. Schenk (LASCO) DOY: 258 ANNOUNCEMENTS ------------- * Today at 24:00 UT is the deadline for entries in Doug Biesecker's SOHO "100th" comet contest. Send your guess to: doug@sungrazer.nascom.nasa.gov * Beware of "Downlink Only" DSN contact tomorrow (18:25-22:45 UT) when scheduling your instrument commanding. FOT REPORT ---------- Spacecraft Status: Nominal Spacecraft Anomalies: 257/1627 - CEPAC ESU data request error; recovered by on-board software Accomplished Activities: VIRGO, SWAN, CELIAS, RSL Table, Guide star swap (4.95 mag) Planned Activities: VIRGO, CELIAS Upcoming Operations: MDI Quasi-Continuous (10-20 Sep) Ground Anomalies: 257/1437 - Block TC Sequence Error at D16 during RSL upload (6 min delay) 258/0440 - Weak signal on RCVR1; D46 frequency drift (10 min delay) SOLAR STATUS ------------ SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO CONTINUE AT LOW LEVELS. REGIONS 8690, 8692 (S27W14), 8699 (N21W11), AND 8700 (N14E59), ALL HAVE POTENTIAL FOR C-CLASS X-RAY ACTIVITY AND A SMALL CHANCE FOR AN M-CLASS EVENT. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD WILL CONTINUE AT QUIET TO ACTIVE LEVELS DURING LOCAL DAYLIGHT HOURS AND UNSETTLED TO MINOR STORM DURING LOCAL NIGHTTIME. EFFECTS FROM THE HIGH-SPEED CORONAL HOLE WIND STREAM WILL BEGIN TO DIMINISH TOMORROW; HOWEVER, WE MAY EXPERIENCE ACTIVE TO MINOR STORM CONDITIONS ON DAY TWO FROM CME'S OBSERVED DURING THE PAST TWO DAYS. 9/14 DOY 257 - 9/15 DOY 258 EIT daily On-Line Solar Status and observations: http://umbra.nascom.nasa.gov/eit/plan/log_form19990915.html LASCO 9/14: 20:30 UT Large CME seen in C2 in NE. Jetting continued thereafter. INSTRUMENT STATUS ----------------- CDS: Nominal. Intercal 001, then sunspots study of AR 8690. Tomorrow Sunspots again but change coords to AR 8692. UVCS: Nominal. IPS Campaign looking at 6 solar radii and synoptics. LASCO: Nominal. C2 and C3 synoptics while CME watching. Mercury in C3. EIT: Nominal. 195A CME Watch in full resolution. Intercal 001 MDI: Nominal. Full disk magnetograms and velocities TRACE: Nominal. Flarewatch of AR8693. Intercal 001 today then JOP097. Tomorrow flarewatch and JOP097 again.