SOHO Daily Meeting Minutes for Thursday, 12 August 1999 Chaired by: L. Roberts (SOC) Notes by: R. Wu (UVCS) DOY: 224 FOT REPORT ---------- Spacecraft Status: Nominal Spacecraft Anomalies: None Accomplished Activities: DOY 222: VIRGO, CEPAC, RSL DOY 223: VIRGO, SWAN, Eclipse support Planned Activities: VIRGO, NOM HGA Table Upcoming Operations: N/A Ground Anomalies: 222/1458 - 15 minutes lost telemetry/ D61 delay in reacquiring D/L. Recoverable from SSR. SOLAR STATUS ------------ SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO REMAIN LOW. REGION 8662 IS THE ONLY REGION LIKELY TO PRODUCE C-CLASS FLARES AND HAS A SLIGHT CHANCE OF AN M-CLASS EVENT. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO REMAIN AT QUIET TO UNSETTLED LEVELS. EIT: CME in SW, material moving northward C2 Flare in 8662 CME from 8657 LASCO: 2 CMEs in NW Saw Comet SOHO-79 around 0500 UT in C3 INSTRUMENT REPORTS ------------------ CDS Northern hemisphere limb scan, Synoptics, Oslo Active Region Campaign (AR 8657). UVCS Continuation of Eclipse support, Extended Synoptic, Synoptic. LASCO Synoptics, extra polarized brightness images for the eclipse EIT Full-disk CME watch in 195 Angstroms and synoptics, planning to do streamer study for Whole Sun month with emphasis on 284 Angstoms. MDI Full Disk magnetograms and dopplergrams TRACE Observing AR 8662, coordination with La Palma Solar Eclipse Report from Ted Tarbell ------------------------------------- TRACE Observes the August 11 Total Eclipse of the Sun The TRACE satellite passed through the moon's shadow twice and had a third grazing encounter with it, during the "last eclipse of the millenium" which was seen in Europe and Western Asia. In between these eclipses on orbit, it observed coronal loops and streamers in coordination with ground-based expeditions in Hungary, Romania, and Iran. The first report from a Williams College experiment in Romania told of clear skies and completely successful observations of the same active region loop complex which TRACE observed. A first image may be seen at http://umbra.nascom.nasa.gov/eit/eclipse_composite.html. During the satellite eclipses, which took place well-separated in time from the ground observations, TRACE took images of the moon's edge to measure the image quality and scattered light of the TRACE telescope: see the short movie at http://chippewa/~dcm/eclipse/eclipse.html. Early and late in the day, TRACE made mosaics of the full disk of the sun and of the coronal "ring," to provide context for the eclipse observations. Some of these may be seen at http://sohowww.nascom.nasa.gov/cgi-bin/synop_image/990811.