Friday January 21, 2000

1. Review of action items


2. Boundary conditions

- Upcoming Maneuvers/spacecraft activities * February Feb 1: Tape recorder maintenance, a few extra NRT pauses. No maneuvers for the current planning period. * March A mini-recommissioning including more gyroless software patches is tentatively scheduled for the week of March 6 - 10. Reaction wheel 4 maintenance, station keeping, momentum managements will be performed at some time between March 6 - March 22. Details are still being determined, more information available later. - MDI Continuous * Feb 10 11:40 UT - Feb 15 07:50 UT

3. JOPs status

- NEW: * JOP119: Variability and Physical Properties of Transequatorial Interconnecting Loops EIT part unacceptable because of frequent sector wheel/shutter operations. Appendix A of the EIT User's guide found at now describes some of the operational constraints for EIT. Also, the TRACE part of the JOP should take into account that CDS's observations take ~6 hours, it would make sense to suggest a TRACE program covering the whole time frame. MDI will be in touch with JOP authors to clarify and emphasize possible conflicts with respect to switching between Full Disk/High Resolution, especially during MDI Continuous periods.

4. Priorities for the coming month (W 5 - W 9)

a) Joint observing plans - No JOPs scheduled. b) Individual instrument plans - CDS * CME onset study, 10-15 hr study to be run once per week several times during February. Coordination w/UVCS possible, TRACE not likely due to Emerging Flux studies. * GIS Large area raster (about 10hr) to be performed once. Possible coordination with EIT to be worked out [EIT observing mode yet TBD]. * Polarity reversal study, 8-10 hour program * Oslo AR/Loops on Limb study * Oslo Sunspot campaign, coordination w/TRACE and MDI possible - EIT * 195 CME Watch. Most likely, a weekend bakeout will be performed during February, date still to be determined. * May coordinate with: - CDS GIS Large area raster for cross-calibration. - TRACE/VLA observations Feb 5-8, contact Rob Wilson. * There is a calibration rocket flight within March - May time frame. - LASCO * Synoptic program - MDI * Will run in Full Disk mode unless an active region enters the High Resolution FOV. May run "Mag Movies" (alternating Full Disk/High Resolution) during TRACE Emerging Flux Studies. - UVCS * 2 Weeks of CME Watch [coordinate with CDS] * 2 Weeks of Global Dynamic Studies of the Extended Corona - TRACE * Feb 5,6,7(?),8: VLA observations [16-21UT]. Rob Wilson * Feb 8-28: Emerging Flux studies. Best effort MDI support [MagMovie] * TRACE representative will ask other TRACE members if they could do a few full disk mosaics during whichever weekend EIT will bake out there detector. c) Intercalibration activities * Feb 23: Intercal 001, CDS/EIT. TRACE participation not determined.

5. Preview of future months

* See the Monthly Calendar at: There is a Max Millenium campaign involving CDS scheduled for March:

6. AOB

* Next SPWG: - February 25, 2pm local * Discussion w/input from Hugh Hudson on how to make SOHO more accessible to "guest observers". A "SOHO cookbook" on how to write JOPs or request observations should be made. * REMINDER: DSN support should be requested at least 6 months in advance. Keep this in mind for: ground-based collaborations that require MDI support, stellar observations that require NRT, etc.