SOHO Daily Science Meeting for 07-April-1999 Chaired by: J. Hollis (SOC) Notes: E. Einfalt (EIT) DOY: 097 ANNOUNCEMENTS ------------- * SCIENCE CLUB 3:30 p.m. TODAY: William Thompson (NASA GSFC/SM&A Corp.) and Paal Brekke (SOHO/ESA), "EUV Solar Irradiance and Full Disk Images using CDS" * Today at 19:00-19:30 UT global DSN downtime for Y2K testing. No realtime telemetry or commanding during that 30 minutes. Stations will go into record prior to 19:00 so that the data will be recoverable. * Bill Bast will be on leave until April 20 (getting married). Network concerns for EOF will be referred to Amy Skowronek. FOT REPORT ---------- Spacecraft Status: Nominal Spacecraft Anomalies: None Accomplished Activities: RSL, VIRGO, SWAN, CELIAS Guide star change (6.9 mag) Acquire new tracking stars (7.1, 7.2 mag) Planned Activities: VIRGO, CELIAS Upcoming Operations: Ground Anomalies: None SOLAR STATUS ------------ 14:00 - 17:24 UT interesting loop activity at SE limb 19:13 - 19:48 UT wave visible NNW of AR 8506 ~22:00 UT CME behind SE limb, wave visible in SE 00:00 UT LASCO sees SE CME 02:12 UT CME from bright point NW of 8508 03:45 UT flaring arc N of 8506, wave to NNW 05:36 UT flaring arc S of 8506, wave to S and SE INSTRUMENT STATUS ----------------- CDS: Nominal. Synoptic. JOP 083. UVCS/CDS CME watch (on NE limb today). Engineering. Tomorrow, prominance study, JOP 083 and UVCS/CDS CME watch. SUMER: Not observing. UVCS: Nominal. Synoptics and UVCS/CDS CME watch. LASCO: Nominal. C2/C3 synoptics. Thermal cycling for C1. EIT: Nominal. Synoptics and CME watch. MDI: Nominal. Continuing continuous contact. TRACE: Nominal. Emerging flux study.