SOHO Daily Meeting Minutes for Monday 19 April 2004 ANNOUNCEMENTS ------------- * The current RHESSI default target is AR10596. When selecting this target to maximize coordination w/others, use campaign number 6850. * Solar Science Seminar on Tuesday, April 20 at 3:30 p.m., Bldg 26, Rm G-10. Valery Nakariakov (Univ. Warwick) will speak on "Short Period MHD Waves in the Corona." FOT REPORT ---------- Spacecraft Status: Nominal Spacecraft Anomalies: 107/1924 Star 3 not eligible without commanding - only 4 stars eligible for 41 minutes. Accomplished Activities: DOY 107 RSL Table, Uplinked delayed load: VIRA40417, Acquired new tracking star, Executed CS-27: Emergency Record, CDMU RAM Memory Dump DOY 108 Uplinked delayed load: SWA040416081, FSM Collection DOY 109 Uplinked delayed load: NONCOHO_04109 Planned Activities: Nominal daily activities Upcoming Operations: None Ground Anomalies: DOY 107 1500 Incorrect data in RSL Table - FDF had to regenerate and retranmit the table. 1541 Loss of telemetry (DSS16) - autotrack problem - 1 minute of telemetry loss - nonrecoverable. 2003 Three Extraneous Commands (DSS16) - cause unknown - delayed SUMER NRT for 21 minutes, 3 extra commands sent to spacecraft and rejected. DOY 108 1430 Extraneous Command (DSS66) - cause unknown - 1 extra command sent to the spacecraft & rejected. 2054 Extraneous Command (DSS16) - cause unknown - 1 extra command sent to the spacecraft and rejected, delayed LASCO NRT 30 seconds. 2325 Ranging Not Performed due to DSS46 unable to maintain lock on receiver 1 - unable to collect 385 minutes of ranging data, 32 minute command outage, delayed MDI transition for 16 minutes. DOY 109 1647 Telemetry outage due to antenna (DSS16) auto track - lost 1.5 minutes of telemetry - unrecoverable. Other: None SOLAR STATUS ------------ 04/16 DOY 107 - 04/19 DOY 110 EIT daily On-Line Solar Status and observations: http://umbra.nascom.nasa.gov/eit/plan/log_form20040419.html LASCO daily On-Line Solar Status and observations: http://lasco-www.nrl.navy.mil/observations/Todays_obs.html Web Page for Planning: http://www.bbso.njit.edu/arm Magnetic Maps and Heliospheric Forecasts: http://www.lmsal.com/forecast/ INSTRUMENT STATUS ----------------- CDS: Nominal. Full spectral full sun scan. Tomorrow: polarity reversal monitoring at the north and south poles, GIS spectral atlas. SUMER: Nominal. JOP104. Tomorrow: JOP104, dynamics of chromospheric spicules study. UVCS: Nominal. Streamer study and synoptics. LASCO: Nominal. Modified C2/C3 synoptics, comet observations. Observing comet Bradfield in C3 subfields, in all colors with a cycled pattern and reduced exposure times. C2 cadence drops to 2 per hour, EIT cadence drops to 4 per hour. Only 1 full field C3 per hour. EIT: Nominal. Half resolution 195 CME watch, synoptics, JOP104. MDI: Nominal. Full disk magnetograms and dopplergrams. TRACE: Nominal. JOP104 support. Tomorrow: dynamics of chromospheric spicules study.