[an error occurred while processing this directive]

SPWG Minutes Friday, August 24, 2001

1. Review of action items

2. Boundary conditions

* No maneuvers for the current planning period. The ESR orbit recovery maneuver was so accurate that the driver for the next maneuver is a momentum management before some time in mid December. Only a minimal orbit would be needed if performed at that time. Next maneuver will likely be held prior to the possible roll maneuver in the beginning of December, to adjust wheel speeds. * Still no launch date for HESSI, but *tentatively* scheduled for October. * Oct 29-Nov 11 SOHO/Ulysses quadrature during north polar pass * VAULT launch scheduled for 25 October * MSSTA-III EUV rocket launch postponed (no target date - spring 2002). * Commanding outlook: See AOB section. * Submodes: Submode 5 until August 31, 15 UT Then submode 6 until MEDOC Campaign starts (October 15), or JOP104 run in October/November, in case HESSI is launched. * MDI 5-day continuous: August 29 - September 3 FD most likely September 26 - October 1 * The MDI team is on a track to reduce the MDI shutter usage to half or less of present usage, to allow the instrument to be used for another 5 or more years. We expect to have a meeting to review shutter status and plan long-term operations in a few weeks. We are still determining what changes are practical, but one of the things being considered is elimination of the nominal 8-hour campaigns as much as possible, subject to compelling science arguments. So we want to give our colleagues a heads up that MDI may not provide very good collaborative support during the late summer and fall, although we hope to return to collaborative mode in some reduced level around the first of the year. In short - if you have projects that require high-cadence MDI support, now is a good time to ask! Also, if you need MDI data, make sure you request it specifically. * Aug 31-Sep 4 EIT Bakeout * EIT shutterless observations tentatively scheduled for (1st half) October. Targeted time: August 6, 15-20 UT (TBC).

3. JOPs status

New: JOP146 Temperature/Density Structure of Loops in Bipolar Active Region, CDS/TRACE/EIT/Yohkoh, POC: Jonathan Cirtain (jcirtain@mithra.physics.montana.edu)

4. Priorities for the coming month (W36-40, September 9 - October 7)

a) Joint observing plans and campaigns Sep 11-24 JOP146 Temperature/Density Structure of Loops in Bipolar Active Region, CDS/TRACE/EIT/Yohkoh, POC: Jonathan Cirtain (jcirtain@mithra.physics.montana.edu), Jack Ireland (local) Oct 3-10 JOP017(?) Onset on flaring activity and Coronal mass ejections, POC: Brigitte Schmieder MDI has no request for this program - they will need details if support is wanted. The MMOP011 Sigmoidal active region study has been revived by the Max Millennium group (until HESSI launch). b) Individual instrument plans UVCS - see SOHO monthly calendar for weekly plans CDS - see CDS Request diary for details: http://solg2.bnsc.rl.ac.uk/scientificops/request.shtml Candidates for collaborations w/CDS: Long period oscillations in polar plumes, 10 days in Sept., 3 hrs/day, POC: D. Banerjee - dipu@wis.kuleuven.ac.be with Eoghan O'Shea. Uninterrupted CME onset watch, one 24h period late Aug. or early Sept., POC: CDS planner. Extended coronal effects of flares, in 2 weeks starting Aug. 27, POC: Carl Foley - caf@mssl.ucl.ac.uk (CDS planner for those weeks) Particle beam study, once per week, POC: Jeff Brosius/CDS Planner AR/flare diagnostics, once a week, long sequences. POC: Helen Mason - h.e.mason@damtp.cam.ac.ud, Giulio Del Zanna - gd232@damtp.cam.ac.uk c) Intercalibration activities Intercal 1 - TBD.

5. Preview of future months

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

6. AOB

* Next SPWG: Friday 28 September. * 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 These times are subject to change - more details are available if wanted: Week 36 - Sep 03: Good week for commanding except for a couple of lunchtime gaps. Week 37 - Sep 10: DSS27 on Monday afternoon, lunchtime gaps on most days so command mid-afternoon. Week 38 - Sep 17: DSS27 for several days, lunchtime gaps on several days so plan to command mid-afternoon. Week 39 - Sep 24: DSS27 for several days, lunchtime gaps on several days, and a downlink only station Friday from 16-18 UT. Week 40 - Oct 01: DSS27 on Monday and Tuesday, lunchtime gaps on several days means commanding in the mid-afternoon. Week 41 - Oct 08: DSS27 on Monday, lunchtime gaps often this week. Week 42 - Oct 15: DSS27 on Monday, lunchtime gaps often this week.