SOHO Daily Meeting Minutes for Monday, 13 Sept. 1999 Chaired by: J. Hollis (SOC) Notes by: E. Zamkoff (MDI) DOY: 256 ANNOUNCEMENTS ------------- * Have DSS-27 Wednesday, Thursday and Sunday this week. * No schedule yet for gyroless maneuvers -- may start 3 days late. * REMINDER: This Wednesday (Sept. 15) is the deadline for Doug Biesecker's comet contest. Guess the date and time of the perihelion of the 100th comet discovered by SOHO/LASCO data. Prize award will be lunch at resaurant of choice. Mail entries to: doug@sungrazer.nascom.nasa.gov View at: http://sungrazer.nascom.nasa.gov FOT REPORT ---------- Spacecraft Status: Nominal Spacecraft Anomalies: None Accomplished Activities: 253 - VIRGO, RSL, New Guide Star (7.0 mag) 254 - VIRGO, SWAN, MDI 255 - VIRGO, MDI, NONCOHO Planned Activities: VIRGO Upcoming Operations: MDI Quasi-Continuous (10-20 Sep) Ground Anomalies: 253/0743 - TM Dropout, Low SNR; Cause unknown (1 minute, recoverable) 253/2323 - TM Dropout; D16-JPL Comm line hit (2 minutes, recoverable) 254/0028 - Commanding problems, extended handover (30 minutes, SSR in record) 254/1635 - TM Dropout; D16 antenna to brake (1 minutes, unrecoverable) 255/1627 - TM Dropout; D16 misconfiguration (3 minutes, SSR in record) 255/1943 - Degraded TM; Goldstone (D16) brownout (9 seconds, unrecoverable) SOLAR STATUS ------------ SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE AT LOW TO MODERATE LEVELS. REGION 8699 MAY PRODUCE M-CLASS FLARES, PARTICULARLY IF ITS PRESENT RATE OF GROWTH CONTINUES. THERE IS ALSO A SLIGHT CHANCE FOR A MAJOR FLARE FROM THIS REGION. GEOPHYSICAL ACTIVITY FORECAST: GEOMAGNETIC FIELD ACTIVITY IS EXPECTED TO RANGE FROM UNSETTLED TO MINOR STORM LEVELS THROUGH THE PERIOD AS CORONAL HOLE EFFECTS CONTINUE. THE GREATER THAN 2 MEV ELECTRON FLUX, CURRENTLY AT NORMAL LEVELS, IS EXPECTED TO INCREASE TO HIGH LEVELS DURING THE PERIOD. EIT daily On-Line Solar Status and observations: http://umbra.nascom.nasa.gov/eit/plan/log_form19990913.html Saturday - Faint CME at 03:24 on the west limb, slow CME at 12:24 over the northwest limb, backside CME at 21:36 over the north pole. Sunday - Large CME at 00:24 in the southwest with a filament eruption after it, C2 flare at 05:12 from AR 8699, small CME at 07:13 over northeast limb, 12:54 CME in LASCO Monday - Slow CME at 06:24 in northeast, C5 flare at 08:48 in AR 8699, eruption in north/northeast at 08:12, 02:30 CME in LASCO, 08:30 CME in LASCO. INSTRUMENT STATUS ----------------- CDS: Nominal. Today: sunspot survey, full sun full spectrum images. Tomorrow: sunspot studies, south pole observations. UVCS: Nominal. Observations on the east limb at 70 degrees at 4 Rsun and 5 Rsun for velocity measurements in conjunction with EISCAT IPS observations. LASCO: Nominal. C2/C3 synoptics. EIT: Nominal. CME watch. MDI: Nominal. Over the weekend and for the first part of this week: high resolution magnetograms and velocity for JOP097. TRACE: Nominal. Today: Continuing JOP097, flarewatch on 8693. Tomorrow: JOP097 and flarewatch.