JANUARY 17, 1997 SPWG MEETING MINUTES Chair: Piet Martens (SOC) Minutes: Laura Allen (SOC) Attendees: Ken Dere (EIT), Philippe Lemaire (SUMER), Don Hassler (SUMER), Ray O'Neal (UVCS), Silvano Fineschi (UVCS), Dermott Mullan (COSTEP/ERNE), Andrzej Fludra (CDS), Joe Covington (MDI), Julia Saba (MDI), Craig DeForest (MDI), Simon Plunkett (LASCO), Brigitte Schmieder (Meudon), Udo Schuehle (SUMER), Doug Biesecker (LASCO) New Action Items: 97_1.1: On SOC's to append appropriate JOP version to record of each executed JOP in campaign catalog. 97_1.2: On ESA SOC to investigate whether previous JOP versions -- if run -- can be restored. 1 Review of action items ---------------------- - All previous action items closed 2 Boundary conditions for the coming month ---------------------------------------- - January 31: Deadline for input to script of March roll maneuver - February 1: SVM Memory Dump (6 hours, no experiment commanding) - February 7: OCD deadline for MDI continuous at noon local - MDI Continuous: 2/13 7:55 UT - 2/17 5:30 UT 3 Priorities for the coming month ------------------------------- a) Individual instrument plans ------------------------------ SUMER - Targets of opportunity, statistics program of bright points. not a lot of collaborations planned. In May SUMER plans to move their slit West to intercept polar crown, near limb. Dermott Mullan points out this will be an ideal time for a JOP049 with SUMER in that position (May and June) SUMER will be testing a rotation compensation mode next week -- for an active region at central meridan may be helpful, only want to use it when really needed CDS -- 1) Abundances (JOP021) - would like to do this in the next two months with SUMER in current position. MDI submitted SOI proposal use high resolution field-of-view to do abundance studies and would also be interested in participating 2) Filling factors in loops (Klimchuck JOP-leader). CDS/EIT/Yohkoh MDI if on disk. 3) Resuming GIS operations, this Monday loading a new GIS patch quiet sun, active region studies -- as a precaution they loaded a patch to prevent slit motor from overheating just being cautious. 4) Coronal hole studies (target of opportunity) 5) Request to run filament movies with the wide slit to supplement JOP009. Probably have other instrument teams consider running similar movies. EIT's participation with filament observations/movies would depend on the filament's location -- unless close to the limb, they do not see much. Proposal to make this a joint effort, also involving Yohkoh/SXT MDI at brought up the idea of a joint program to track photospheric oscillation up into the chromosphere. However, one would need to observe every minute or two.. MDI and CDS to talk off-line about resolution considerations for such a study. 6) New synoptic program which would use the wider slit, and take half the time of regular synoptic to run. 7) Quiet sun studies with MDI (high cadence, end of February) EIT -- First priority is more telemetry. No Jops have been submitted this month so will depend on EIT planners: Ken Dere for next two weeks then Simon Plunkett. Trying to coordinate with MDI Hi-Res. LASCO - similar priorities to EIT (more telemetry). Working on a reduced synoptic program and experimenting with partial frame images. LASCO is trying to do more specialized observations while continuing more or less with the same synoptic program. UVCS -- involved in coronal hole and streamer studies throughout Feb and March as far as they know mostly UVCS only. Week 9 starting, February 24 good for joint UVCS/LASCO studies. From March 24 to 30 would like to schedule EIT/UVCS collaborations. MDI -- in the next two months MDI wants to emphasize collaborations because starting April 13 will begin the long 3 month continuous contact which will be reserved for helioseismology. Displayed a viewgraph of some types of data products they can provide: MDI Mode FOV Notes -------- ----------- ------ FD_m1_f1 full disk filtergrams compress well can get two down in one minute FD_me_ve 3/4 full disk partial disk, can choose N, S pointing FD_m1_v2 full disk HR_m1_v2 MHR priority mode for extra-long DSN contacts HR_ve_fe_me 1/2 MHR 10.5 arcmin E--W X 5 arcmin N--S can choose N, S pointing HR_t_ve_fe_me 1/2 MHR 5 arcmin E--W X 10.5 arcmin N--S tracking mode possible can choose E, W pointing FD_HR_rocket alternate @ active sun magnetograms 2 minutes: alternates full disk and high res full disk/MHR m - magnetogram v - velocity / dopplergram f - filtergram MHR - MDI high resolution field-of-view MDI would like to come up with a version of the blinkers (aka a possible new JOP059) that doesn't involve SUMER scanning and would like to have a longer duration. MDI would like to emphasize quiet sun studies for the next 2 months, except when a good active region target is in the high resolution field-of-view. MDI also would like to redo another blinkers campaign. The data from a previous blinkers campaign were largely lost due to a Goldstone antenna problem -- only got 17 minutes worth of data. Should probably write up blinkers campaign as a JOP. MDI magnetograms may get somewhat noisier in the future, due to a thermal adjustment intended to get rid of 96 minute period in helioseismology data. b) Intercalibration activities --------------------------- For SUMER will do regularly, every 3 weeks run ICAL001. One for next week, subsequent in mid-February c) Joint observing plans --------------------- See updated plans on SOHO Calendar. Summary: * Blinkers studies / a new JOP059 * MDI available for next 2 months * UVCS/LASCO on streamers * UVCS/EIT may collaborate at end of March * Filament movies * Filling factors * Abundances - JOP021 * Explosive events * Coronal Hole Studies * EIT participates in MDI Hi-Res runs 4 JOPs status ------------ Campaign Catalog: SOC demonstrates Web-page that JOP and campaign leaders can use to update/complete the information on their campaign in the campaign data- base. This page is now accessible from everywhere, but the input to the data- base is screened by the SOC's (to avoid hoaxes). JOP leaders will receive reminders to update from Robert Doney. The same page provides also access to the database for searches. The SPWG would like to see each JOP run record accompanied by the appropriate version of the JOP -- on the Web only the latest versions of JOPs have been kept. Action on SOC's. Piet Martens will look to see if previous versions can be restored. 5 New JOPs --------- Don Hassler presented a new intercalibration JOP: ICAL011. Sounding Rocket Flight Overview: The Woods/Hassler sounding rocket payload consists of a suite of XUV and EUV full disk irradiance instruments (Tom Woods, PI) and EUV coronal imagers (Don Hassler, PI) which are radiometrically calibrated at NIST/SURF. The next flight is scheduled to be launched at 1800 UT on April 19, 1997, however, the exact launch date will depend on solar conditions. The primary objective of the irradiance instruments for this flight is to obtain a radiometrically calibrated "typical" or "characteristic" solar minimum full disk EUV solar spectrum, and provide a radiometric calibration for SOHO. The primary objective of the EUV imagers is to measure the coronal helium abundance (with respect to hydrogen), as well as provide radiometrically calibrated full disk images to compare with the irradiance observations and SOHO observations. For full details and contributions wanted from each SoHO instrument, this will be placed on the SoHO Web pages. As mentioned earlier, the scheduled for April 19th +/- 2 weeks around 18:00 UT +/- 1 hour. Would like to get EIT images as close as possible in time to the rocket flight. Would need to have trial run several weeks in advance. 6 AOB --- Ground Based Campaigns: ----------------------- Brigitte Schmieder discussed some future ground-based campaigns involving at least SUMER and CDS. She would like support from SoHO for the following dates between the hours of 7 to 11 UT: * 27 May and 5 June with Pic du Midi -- would support from EIT MDI will be in continuous contact and cannot support this. * 25 Sept to 5 October with Tenerife, German and Swedish telescopes - JOP012 for prominences/JOP017 for filaments and active regions - MDI could have high rate data perhaps to support but may need to request an additional DSN antenna in advance to support the study with high-rate data at the hours of 7 - 11 UT. Upcoming Roll Maneuver in March: -------------------------------- Since the deadline for inputs for the FOT was discovered on Tuesday of this week to be on January 31, 1997 -- Laura Allen did an overview of the e-mail that was sent out to the SoHO Community the previous day. The primary instruments driving this roll are MDI and SWAN. MDI is to check on such requirements as: is a 30 minute dwell necessary, is 25 minutes acceptable..? Also to check on contingency plans should we be running severely behind during the roll maneuver (if we lose 2 hours due to DSN antenna problem, for example...)... do we cut the dwell times or the number of slews..? CDS basically does not have any plans yet to use these dwell times at various positions. EIT does not have any special plans to use the existing dwells either at this point. After the SPWG meeting, SUMER expressed interest in doing a short reference spectrum at each of the MDI dwell positions, and then a long scan at the SWAN dwell at +90 degrees. Instrument teams may want to take note of the fact that the FOT may be desiring a lot of activity input earlier than usual in the future. Primarily, a few FOT people will be required to spend more time with re-engineering tasks. Adjourned: 12:00 PM