SOHO Daily Meeting Minutes for 21 May 1999 DOY: 141 FOT Report ---------- Spacecraft Status: Nominal Spacecraft Anomalies: 140/1707 - SSU SEU 18:30 UT Normal Mode Recovery procedure complete by 18:48 UT, 960 arcseconds roll trim Accomplished Activities: VIRGO, Nominal HGA Table, Extra 2 hrs VC2 Planned Activities: VIRGO, RSL, Extra 2 hrs VC2, New guide star (5.9 mag, slot 2) Upcoming Operations: Jun 15-18 (Dates TBD) - Stationkeeping, Momentum Mgt Ground Anomalies: None SOHO daily meeting at MEDOC --------------------------- Very complex mass ejection event in AR 8545. Two 'EIT waves' producing dimmings at 0824 UT and 1348 UT, Filament eruptions in both cases. North coronal hole disturbance Associated ?!? S/C disturbance: Roll jitter around 1724 UT. Huge CME (multiple) seen by C2 including pieces of filament. Backside CME in the SE seen by LASCO this early morning. CDS GIs performed a 9h long study of a plume ! SUMER did jops 102,101 OK Transition region structure OK Solar Wind (Shaddia Habbal) beautiful data in FeX ,FeXI, 1463-67 A Solar limb observations had some technical problems. Plans for the weekend are being updated CDS JOP 101 disk center Saturday -370 -390 Sunday South pole Monday JOPs 038-101 Will continue tracking CH which just passed sun center. JPD (SOL)