SOHO Daily Meeting Minuges for Wednesday, 15 March 2000 Chaired by: J. Hollis (SOC) Notes by: K. Schenk (EIT) DOY: 075 ANNOUNCEMENTS ------------- * SOHO Science club today 3:30 pm, GSFC Bldg 26, room G-10 Scheduled Speaker: Engvold Oddbjorn (Univ. of Oslo), "Support of prominence plasma in highly inclined magnetic fields" FOT REPORT ---------- Spacecraft Status: Nominal Spacecraft Anomalies: 074/2117 CEPAC ESU Data Request Error. On-board software recovered autonomously. Accomplished Activities: VIRGO,RSL,CELIAS Planned Activities: VIRGO,SWAN,CELIAS Upcoming Operations: 3/23,24 Maneuver Operations, SK,MM,RW 4 Maintenance. Ground Anomalies: 074/1855 Spurious DSN Monitor Data from JPL. 30 Min NRT delay for troubleshooting. 074/2130 ECS Hung-Commands stuck in Queue. 28 minute NRT lost. 20 minute TM outage in EOF. SOLAR STATUS ------------ SOLAR ACTIVITY FORECAST (UPDATED MARCH 14 AT 22 UT): SOLAR ACTIVITY IS EXPECTED TO REACH MODERATE TO HIGH LEVELS. COMPLEX REGION 8906 WILL LIKELY PRODUCE OCCASIONAL M-CLASS ACTIVITY, AND HAS POTENTIAL FOR A MAJOR FLARE. REGION 8910 WILL CONTINUE PRODUCING C-CLASS X-RAY ACTIVITY WITH THE SMALL CHANCE OF AN M-CLASS EVENT. GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO CONTINUE AT QUIET LEVELS. 03/14 DOY 074 - 03/15 DOY 075 EIT daily On-Line Solar Status and observations: http://umbra.nascom.nasa.gov/eit/plan/log_form20000315.html CAMPAIGNS --------- Email from Lyndsay Fletcher, Yohkoh: The target for Max Millenium Campaign #6 on 16-Mar-00 will be again be AR 8906. The co-ordinates are as follows. Target AR: 8906 on 16-Mar-00 at Yohkoh Pass 3 07:24 UT Heliographic Coordinates : S 15.7 W 29.5 SoHO X-Y : (x,y) = (457", -159") Yohkoh SXT will track the brightest pixel in the AR, with a (5.'2 x 5.'2) field of view. INSTRUMENT STATUS ----------------- CDS: Nominal. Jop121 Filaments Study, then synoptics. Return to the JOP121 during EIT synoptic times. Will begin InterPlume Oscilations Program near South Pole. Later ICALL001 then Max Millenium observations. SUMER: Nominal. ICAL 001 today and JOP 121. Will be powering down detectors tomorrow. UVCS: Nominal. Skipped synoptics for North Pole CME watch and participation with Lasco C3 in outflow studies. LASCO: Nominal. Observations with C2 and C3 while CME watching. High cadence C3 over North Pole for outflow studies. EIT: Nominal. CME Watch, binned 195A images at 12 minute cadence. ICAL 001 today and tomorrow with TRACE,SUMER, CDS. MDI: Nominal. Full disk Mags and Dopplergrams. TRACE: Nominal. Later ICAL 001 then return to flare watch of AR8906. Times are UT and positions are in arc seconds W/E, N/S. TRACE continues with Max Millenium Campaign # 6, almost all day. Our sequence test the morning of the 14th produced a nice flare response to a small subflare at 01:42. Several corrections/ improvements to the sequence were made and uplinked this afternoon. From now on, we will run the dedicated 1600 A high cadence sequence for this campaign. An additional test from 00:04 to 04:24 on the 15th will try fixed 80 ms exposures, rather than the default automatic exposure control, which is used the rest of the day. There is a short break in the morning during an SAA to do a 4-limb pointing calibration; and 2 breaks in the PM for the SOHO intercalibration. The target region 8906 shows a lot of polarity mixing, including a sliver of white flux pressed between the two black sunspots. We noticed this in the MDI high res magnetogram this morning and the CDS planner agreed to place his slit there.