, 22 April 1998 SOHO Daily Meeting Minutes Chairs: J. Hollis (SOC)/ A. Vourlidas (SOL) Notes: S. Stezelberger (LASCO) ANNOUNCEMENT ------------ George Simnett will speak on "CME Onsets, Prominence Eruptions and the Global Coronal Magnetic Field" at the Science Club meeting today at 3:30 in Building 26, Room G10. FOT BRIEFING ------------ Spacecraft Status: NOMINAL Spacecraft Anomalies: 111/1959 CDS NOT ACKNOWLEDGING OBDH BLOCK COMMMANDS Accomplished Activities: RSL,VIRGO, SUBMODE 5 @ 1956 Planned Activities: RSL,VIRGO, EXTRA VC2 2355 - 0255 Upcoming Operations: NONE Ground Anomalies: 111/1912 SUBSETTING TASK CRASH ON PRIME STRING. SWAPPED TO BACKUP. 8 MIN NRT PAUSE 111/2215 TC BLOCK SEQUENCE ERRORS D24 LOST I/F W/XMITTER AND EXCITOR 15 MIN NRT PAUSE 112/0129 30 SEC TM DROPOUT D27 REASON UNKNOWN INSTRUMENT STATUS: ------------------ CDS: Nominal. Yesterday: abundances JOP (E. limb) Tomorrow: run of Sunday's global solar irradiance study, 7:00-12:00 UT. SUMER: Commanding from MEDOC. EIT: Nominal. Switched CME Watch to 2x2 resolution after 20:00 yesterday. Executed TRACE support images late yesterday. Filament eruption on NW limb yesterday, 14:00-18:00 UT. LASCO: Nominal. Using "lossy" compression on most C2 images during Submode 5 period. SPE proton flux still visible in synoptic images. Saw CMEs on E and NW limb on 21 April. Synoptic program continues. MDI: Nominal. Today: testing extract from high-res field of view for TRACE. No new evolution in new disk-center EFR. UVCS: Nominal. Yesterday: at 1.3-1.5, 1.3-1.6 Rsun, abundances JOP. Saw enhancement over W limb, ~19:00 UT. Today: at 3-4 Rsun at high latitudes (no hot lines expected). TRACE: Not completely nominal. EUV first light was obtained, but no data received during last ~20 hours due to a chain of ground-segment failures. Today: CCD will cool from -8 deg. C to -50-55 deg. C to reduce dark current.