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SPWG Minutes Friday, May 25, 2001

1. Review of action items

2. Boundary conditions

* Next maneuver is scheduled for June 28. Preliminary fuel estimate: 0.556 kg + momentum management, use 0.6 kg for planning purposes. CDS needs to do some GIS engineering (filament dumps) with doors closed. Much will be done within the 24-hour waiting period after last thruster burn, but some will have to be done the next day. LASCO will need to wait for CDS to open their doors. * Submodes: Submode 6 from Wed May 30, 14:30 UT until JOP104 run in August. * Commanding outlook: See AOB section. * Eclipse on June 21. LASCO/EIT support & JOP still TBD. See http://sohowww.nascom.nasa.gov/soc/aug1999_eclipse/support.html for a baseline of support. Deadline noon wednesday prior to eclipse for input. - We may ask to have the SSR in record. * TXI rocket launch June 21...(White Sands ~1600UT) - We may ask to have the SSR in record. * EIT bakeout weekend before eclipse, will attempt more frequent bakeouts (about every 2 months, to be revised). * HESSI launch scheduled for June 7. Up to a week of detector cooling is required before nominal observations can start. Report to SOCs if anyone needs non-working-hours notification of Major Flare Watches, and review your plans for HESSI observations.

3. JOPs status

New: * Jun 5-13 JOP144 Sources of Coronal Oscillations, CDS/MDI/TRACE/Kanzelhoehe, POC: Jack Ireland MDI not absolutely required: TRACE/Kanzehoehe is minimum. MDI will probably (barring HESSI commitments) support when telemetry is available. CDS have other commitments as well (CME Watch) which do not leave much time if they are run, but they will try. Modified: * Jun 21 JOP123 Narrow band photometry of EUV emission lines, CDS/EIT/TRACE/TXI, POC: Ed Deluca. Launch after 16 UT. June 20 may be backup date * May 14-20 JOP131 Spectro-polarimetric diagnostics of prominences and filaments with SOHO and THEMIS, POC: Brigitte Schmieder, MDI/TRACE/THEMIS/EIT/VTT/Yohkoh/GBOs MDI supported this with 96 min. magnetograms only (due to doppler campaign). * May 14-27 JOP139 A study of helium abundance from coordinated Sac Peak-SOHO-Ulysses observations, POC: Vincenzo Andretta (Andretta@na.astro.it) UVCS/LASCO/CDS/EIT/CELIAS(SEM)/ SUMER/TRACE/Ulysses/Yohkoh-SXT/Sac Peak

4. Priorities for the coming month (W23-26, June 4 - July 1)

a) Joint observing plans and campaigns * Jun 7,8,10, JOP136/MMOP009 Default HESSI collaboration, 12,13,17 UVCS/CDS/EIT/LASCO/TRACE(TBD)/MDI(TBD)/(+) * Jun 5-13 JOP144 Sources of Coronal Oscillations (TBC), CDS/MDI/TRACE/Kanzelhoehe, POC: Jack Ireland, 6-14 UT * Jun 5-13 Umbral oscillations/penumbral running waves, TRACE/SPO POC: Karin Muglach, 14-22 UT * Jun 15-21 JOP142 Motions in Filaments, TRACE/CDS/MDI(TBC)/Sac Peak, (Sac Peak: 13-24 UT; Prime observing time: 13-18 UT) POC: Terry Kucera HESSI takes precedence for TRACE (Major Flare Watches - or likely flare targets not yet triggering a MFW) and MDI (Major Flare Watch). T Jun 21 Solar eclipse. EIT/LASCO support TBC, POC: Gareth Lawrence UVCS/LASCO/GBOs Coordinated Observations for Solar Eclipse JOP123 Narrow band photometry of EUV emission lines, CDS/EIT/TRACE/TXI, POC: Ed Deluca. Launch after 16 UT. June 20 may be backup date b) Individual instrument plans Note: In general, HESSI takes precedence for TRACE (Major Flare Watches - or likely flare targets that have not yet triggered an MFW). Also see monthly calendar at: http://sohowww.nascom.nasa.gov/soc/head_calendar.html c) Intercalibration activities W Jun 6 Intercal 1, CDS/EIT, after 16 UT, POC: CDS planner

5. Preview of future months

* See the Monthly Calendar at: http://sohowww.nascom.nasa.gov/soc/head_calendar.html

6. AOB

* Next SPWG: Friday June 15, 2pm at EAF * NOTE: DSN is now accepting requests for 2002. Not a first-come-first-serve principle, but asking early won't diminish your chances. 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. * Commanding outlook Times are subject to change. More details are available if needed. Week 23 - June 04: Most of the week command early or late or on DSS27. Thursday (HESSI launch day) is good all day. Week 24 - June 11: Command after 20 UT on Monday or use DSS27. The rest of the week is good. UVCS star observations will have no problems. Week 25 - June 18: Most of the week command early or late or on DSS27. Friday and Sunday are good. EIT will have to do post-bakeout cals on DSS27. Eclipse day (June 21): command before 14 UT, after 20 UT, or on DSS27 between those times. Week 26 - June 25: Monday is DSS27 all day. The rest of the week is good. Maneuvers on Thursday. CDS dumps on Friday will have no problems. Week 27 - July 02: Monday is DSS27 all day. The rest of the week is good. Command before 17 UT on Wed and Thurs or use DSS27 later in the day. Week 28 - July 09: Most of the week will be on DSS27 each day. Wed and Sat are good days. **EIT shutterless will probably be on Wed. Week 29 - July 16: Mon-Wed on DSS27. Thu & Fri have gaps so command after 19 UT. Weekend is good. Week 30 - July 23: DSS27 all week. Afternoon gaps on Tue, Fri, Sat. Bad week. Week 31 - July 30: Mon is DSS27 all day. Tue is a gap so command after 19 UT on DSS27. Wed & Thu command early or on DSS27. Fri & Sat are good.