DRAFT MINUTES FOR SOHO SPWG MEETING ON 20080502 Latest Update: $Date: 2008/05/02 13:57:41 $ $Author: tsiili $ $Revision: 1.8 $ Change log is at the end of the document. 1. Boundary conditions a) Orbit, attitude and manoeuvres - SOHO is in right side up roll position (0 deg). - manoeuvres To the degree possible, manoeuvres take place during the last days of 34-m keyholes. Currently proposed or set manoeuvre dates are: May 19 (TBC) station-keeping, momentum management, roll Aug 19 (TBC) station-keeping, momentum management Aug 22 (TBC) roll b) Communications with the spacecraft Graphical DSN schedule: http://soho.nascom.nasa.gov/soc/dsn/ Keyhole dates for the next 6 months: * May 7-25 26 m keyhole * May 11-21 34 m keyhole * Aug 01-30 26m Keyhole * Aug 08-22 34m Keyhole - The need and approach to reduce FOT manpower requirements needed for complex operations during the keyhole remains in effect until further notice. - All available keyhole information is at http://soho.nascom.nasa.gov/soc/keyholes.html. Direct link to the list of estimated dates for future keyholes is http://sohowww.nascom.nasa.gov/soc/keyholes.txt. - DSN D45 and D65 (34-m) antennae status D45 and D65 have been and currently remain downlink/telemetry-only, but are in the process of being upgraded with uplink/commanding capabilities. The estimated time for the transmitters to change to operational status is end of May. c) KNOWN submode (SM) dependent activities/submode changes: * TOO JOP153/MMOP003 Future Major Flare Watch (SM5 if SUMER observes target, SM6 otherwise) * Jun 23-Jul 3 SUMER observing TBC (SM5) * Jul 23,30 EIT Shutterless #32 TBC (SM6) * Nov SUMER campaign TBD (SM5) Some of the default SUMER campaign dates overlap with keyholes - which is not a problem in itself (submode 5 will often be needed for keyholes anyhow) as long as potential periods of no SUMER data between passes can be accepted. Except for Major Flare Watches, TRACE will be doing full disk mosaics if/when EIT is not able to do synoptic sets due to keyhole operations. The Jun 23 to Jul 3 SUMER observations are in support of JOP 213 (see also section 2a) and in coordination with UVCS. d) Instrument maintenance activities EIT bakeout periods will be during keyholes. Next bakeout dates are: Friday 5/16 pass #29 EIT in bake ~18:00 UT. If problems with that pass we will fall back to pass #30 and bake will begin ~00:00 UT. Thursday 5/22 CCD bake ends from plan at 05:00 UT. EIT resumes observing on pass #48 ~16:00. If problems with post cals or the pass, fall back to pass #49 and EIT will resume ~00:00 UT. e) Others TRACE summer eclipse season begins on 10 May 2008. According to latest predicts TRACE summer eclipse season will end on 22 Jul 2008. The next eclipse season will begin on 10 Sep 2008. There is no predicted end for that eclipse season Unattended automated night passes for SOHO began October 6 2007. 2. Priorities for the coming month and more a) Joint observing plans and campaigns Continuing campaigns: * 2002/02/25-- JOP136 Default RHESSI Collaborations (#6850), POC: Tero Siili * 2003/05/13-- Default CDS Co-observations with TRACE (#6950) * 2005/09/20-- JOP153/MMOP003 Future Major Flare Watch (#8008) * 2007/03/20-- Default CDS/Hinode-EIS co-observations (#7200) Campaign #6850 is for "individual instrument studies" selecting an active region target [partially] influenced by the Max Millennium target selection to maximise chances of serendipitous co-observations. EIT supports all with half/full-res 195 A CME watch in submode 5/6. It is clear that STEREO-EUVI provides adequate "context" information for RHESSI flare observations. Routine EIT submode and resolution switches are probably no longer needed. * Dec 2-May 28 Exceptional Ulysses Quadrature Observations of the Ulysses spacecraft are expected to cease soon (from weeks to few months) --- quite possibly before the end of the quadrature period. * Mar 3-May 4 MDI 60-day Continuous Contact The default observing sequence will be 1 min cadence, full disk Magnetograms and Dopplergrams along with our usual 96 min synoptic Magnetograms and synoptic Continuum images when in high rate. To avoid problems with transmitter masks at the end of passes during MDI continuous, DSN has requested we bring the carrier down 30 min before the end of pass. As a result, the last 30 min of all MDI continuous contacts will be TM only. For ranging passes, the spacecraft will be transitioned to record ~1 h before the end of the pass. The station will drop the carrier and re-sweep into receiver 2. The spacecraft will then be transitioned back to VC2 and VC3. * May 10-25 JOP 157 emerging flux in active region (BP) or in coronal hole (jet), CDS(TBD)/EIT(TBD)/MDI(TBD)/Hinode/TRACE/THEMIS-MSDP/MTR, POC: Brigitte Schmieder EIT supports both JOP157/178. TBC if 304A is filter of choice. MDI will support JOP157 with as many full disk magnetograms as possible during the keyhole. May 16, 19, 20 and 21 are particularly bad days --- we might only get 2 synoptic magnetograms. Daily information on magnetograms obtained can be found here: http://mdisas.nascom.nasa.gov/coordination.txt CDS will support JOP 157 as the keyhole schedule allows. --> #Hinode - changes, comments? * May 10-25 JOP 178 Filament and its environment, CDS(TBD)/EIT(TBD)/MDI(TBD)/Hinode/TRACE/THEMIS-MSDP/MTR, POC: Sanjay Gosain Target-of-opportunity JOP in conjunction with the JOP 157; primarily for May 20-25. EIT supports both JOP157/178. TBC if 304A is filter of choice. MDI: same as above for JOP157. CDS will support JOP 178 as the keyhole schedule allows. --> #Hinode - changes, comments? * Jun 11-15 MDI Continuous Contact MDI is willing to do high resolution observations during this CC period. Specifically, doing another Helioseismology study with Hinode would be ideal. Observing campaigns suggested for HR Helioseismology studies are hr_ve_fe_me (620"x310" FOV) or hr_t2_ve_fe_me (420"x420" FOV) in non-track mode. Those interested, please request specific observations about 1 month ahead of time. Due to commanding constraints for MDI, we'd like to plan our observations ASAP. MDI still plans on reserving the June and July 5-day Continuous Contacts for HR observations, but no specific requests for collaborations have been received. The default plan for June will be high resolution, 1 min cadence filtergrams, dopplergrams and magnetograms. To avoid problems with transmitter masks at the end of passes during MDI continuous, DSN has requested we bring the carrier down 30 min before the end of pass. As a result, the last 30 min of all MDI continuous contacts will be TM only. For ranging passes, the spacecraft will be transitioned to record ~1 h before the end of the pass. The station will drop the carrier and re-sweep into receiver 2. The spacecraft will then be transitioned back to VC2 and VC3. MDI has not gotten any specific requests for this particular 5 day CC, so, we may just revert to full disk magnetograms and dopplergrams unless there are good active regions in the MDI HRFOV during that 5 day period. * Jun 23-Jul 3 JOP 213 Chromospheric network structure and dynamics, SUMER/Hinode-SOT/SST/TIP II/ZIMPOL II, POC: Anna Pietarila For details see the JOP 213 description at URL http://sohowww.nascom.nasa.gov/soc/JOPs/jop213.txt. SUMER will support. See also below "SUMER observing". MDI has been asked to support JOP213 with HR magnetograms. MDI will support this JOP as well as possible with the available high rate data. MDI has been informed of the change in dates. --> #Hinode-SOT - changes, comments? * Jun 23-Jul 3 SUMER observing In addition to supporting JOP 213, SUMER will carry out coordinated observations with UVCS. SUMER proposes 19 Jun and 4 Jul as submode change dates. The SUMER/Hinode campaign originally scheduled for Apr 2008 is postponed until further notice. The campaign will be structured as multiple JOPs in the same fashion as the 2006 SUMER campaigns have been. The June 2008 SUMER observation period will be of limited scale and scope, not a full-fledged campaign. Some of the JOPs outlined below may also be tested during the June observation period, but running them "in full" remains TBD. Currently submitted JOP/HOP proposals are (timings remain TBD): Timing TBD JOP 207 Eruptive and quiescent prominences Atlas with SOHO and Hinode, CDS/SUMER/Hinode-EIS/Hinode-SOT/Hinode-XRT , POC: Susanna Parenti. Timing TBD. Jun 23-Jul 3 JOP 208 Relationship between movements of magnetic features and mass outflow in funnels, MDI/SUMER/Hinode-EIS/Hinode-SOT/Hinode-XRT/TRACE, POC: Hui Tian. Timing TBD JOP 210 Checking the possible drives of solar wind origin in the coronal hole, SUMER/Hinode-EIS/Hinode-SOT/Hinode-XRT (all TBC), POC: Hui Tian. Timing TBD. Timing TBD JOP 211 How does the solar wind originate from the quiet-Sun region, SUMER/Hinode-EIS/Hinode-SOT/Hinode-XRT (all TBC), POC: Hui Tian. Timing TBD. Timing TBD JOP 212 Connection between UV explosive event and magnetic cancellation, SUMER/Hinode-EIS/Hinode-SOT/Hinode-XRT, POC: Hui Tian. Timing TBD. Only JOP confimed to run is JOP 208, JOP 209 will not be run during this period. Confirmations on the running of the other JOPs (207, 210-212) have been requested by the SOCs. MDI can support JOPs 208 and 209 to as well as it is able depending on high rate telemetry availability. Probable forms of support are high resolution magnetograms with full disk as an alternative. MDI has contacted the JOP leaders about the need to coordinate MDI observations for each day. TRACE had not been contacted for support requests for the original campaign timing and asks to be contacted as soon as the new timing is being narrowed down. --> #CDS, #SUMER, #Hinode-EIS, #Hinode-SOT, #Hinode-XRT - changes, comments? * Jul 9-13 MDI Continuous Contact MDI is willing to do high resolution observations during this CC period. Specifically, doing another Helioseismology study with Hinode would be ideal. Observing campaigns suggested for HR Helioseismology studies are hr_ve_fe_me (620"x310" FOV) or hr_t2_ve_fe_me (420"x420" FOV) in non-track mode. Those interested, please request specific observations about 1 month ahead of time. Due to commanding constraints for MDI, we'd like to plan our observations ASAP. MDI still plans on reserving the June and July 5-day Continuous Contacts for HR observations, but no specific requests for collaborations have been received. The default plan for June will be high resolution, 1 min cadence filtergrams, dopplergrams and magnetograms. To avoid problems with transmitter masks at the end of passes during MDI continuous, DSN has requested we bring the carrier down 30 min before the end of pass. As a result, the last 30 min of all MDI continuous contacts will be TM only. For ranging passes, the spacecraft will be transitioned to record ~1 h before the end of the pass. The station will drop the carrier and re-sweep into receiver 2. The spacecraft will then be transitioned back to VC2 and VC3. MDI has not gotten specific requests for this time period, so we might just do full disk magnetograms and dopplergrams unless there are active regions in the HRFOV. * Jul 23,30 EIT Shutterless #32 Times remain TBD. * Sep 24-28 MDI Continuous Contact The default observing sequence will be full disk, 1 min cadence Magnetograms and Dopplergrams in addition to our 96 min synoptic Magnetograms and Continuum images (when in high rate). To avoid problems with transmitter masks at the end of passes during MDI continuous, DSN has requested we bring the carrier down 30 min before the end of pass. As a result, the last 30 min of all MDI continuous contacts will be TM only. For ranging passes, the spacecraft will be transitioned to record ~1 h before the end of the pass. The station will drop the carrier and re-sweep into receiver 2. The spacecraft will then be transitioned back to VC2 and VC3. * Oct 15-19 MDI Continuous Contact The default observing sequence will be full disk, 1 min cadence Magnetograms and Dopplergrams in addition to our 96 min synoptic Magnetograms and Continuum images (when in high rate). To avoid problems with transmitter masks at the end of passes during MDI continuous, DSN has requested we bring the carrier down 30 min before the end of pass. As a result, the last 30 min of all MDI continuous contacts will be TM only. For ranging passes, the spacecraft will be transitioned to record ~1 h before the end of the pass. The station will drop the carrier and re-sweep into receiver 2. The spacecraft will then be transitioned back to VC2 and VC3. * Nov TBD SUMER/Hinode campaign --> #Hinode - changes, comments? b) Intercalibration activities Last Intercal was: Apr 22 ICALs are normally performed monthly. Below is a SOC proposal for ICAL weeks for the next six months. * May 5-9 ICAL01 (#7113), CDS/EIT/Hinode-EIS/STEREO * Jun 2-6 ICAL01 (#7113), CDS/EIT/Hinode-EIS/STEREO * Jun 30-Jul 3 ICAL01 (#7113), CDS/EIT/Hinode-EIS/STEREO * Aug 4-8 ICAL01 (#7113), CDS/EIT/Hinode-EIS/STEREO * Sep 1-5 ICAL01 (#7113), CDS/EIT/Hinode-EIS/STEREO CDS views Hinode-EIS participation as extremely important. STEREO-EUVI observations might also be used, but ICALs need to be scheduled not to coincide with STEREO manoeuvres or other interruptions in observations (see http://stereo-ssc.nascom.nasa.gov/plans.shtml). EIS and Stereo have been added to the Campaign #7113 description. Dates, details and confirmation will be determined by the planners. EIT: ICALs are OK except (usually) during the weeks of shutterless --- whenever CDS prefers. --> #Hinode-EIS, #STEREO - changes, comments? c) Individual instrument plans MDI: See section 2a for MDI continuous contact periods. MDI may reduce the ALT cadence during Keyholes to be less than 15 ALT magnetograms per day if the lack of high rate telemetry is such that we will lose all or almost all of the 15 ALT Magnetograms each day. The ALT cadence will be decided on an individual Keyhole basis and even a daily basis during each Keyhole depending on the 70 m antenna availability at the time. MDI may also downlink select magnetograms in the 5 kbps telemetry if no 70 m passes are available at least every 2 days for Mag dump in the 160 kbps telemetry. All requests for MDI support need to be made several months ahead of time and sent to mdi-ops(at)mdisas.nascom.nasa.gov. Even outside keyholes, MDI can only do 1-minute cadence observations when we have contact and there is no recorder dump in progress. MDI's REQUEST page is at http://mdisas.nascom.nasa.gov/coordination.txt NOTE: Listing of a study on that page means *only* that a request has been received, not that it will necessarily be supported. A description of MDI Observing Modes most used for JOPs and campaigns (FD vs. HR) can be found at http://mdisas.nascom.nasa.gov/Collaborate. Anyone requesting MDI observations is encouraged to read this page in order to have a better idea of what observing modes would be best suited for a particular study. More detailed information about how MDI operates, observational constraints and telemetry information can be found at http://mdisas.nascom.nasa.gov/MDI_Collaboration_Details. MDI is in Focus 5 for best focus for FD observing and will stay there at least until May 2008. UVCS: UVCS is scheduled to enter Keyhole Safe configuration on 8 May and Keyhole Recovery is targeted for 21 - 23 May TBC. For weekly plans, see the SOHO calendar and the UVCS planning page: http://www.cfa.harvard.edu/uvcs/observations/obst.html. --> #UVCS - changes, comments? CDS: For details see http://solar.bnsc.rl.ac.uk/scientificops/request.shtml. --> #CDS - changes, comments? LASCO/EIT: EIT: 195 A CME watch plus synoptics at 6-hour cadence, as usual. Full-res CME watch whenever we're in submode 6. Hope never to change until the Bogart mission. LASCO continues the C2 pB program at 6 h cadence till Apr 2008. POC: Angelos Vourlidas. SUMER: Next SUMER observation periods: June 23-July 3 Nov (timing TBD) See section 2a for details. TRACE: NOTE that TRACE in general reserves the right to withdraw support from agreed, existing collaborations if a sufficiently "good active region" is called by the Max Millennium group. For TRACE summer eclipse season see section 1e. 3. Any other business * Next SPWG: Friday May 30 after daily & weekly meetings. MDI: OK The rest are FYI items: * Hinode is currently experiencing technical difficulties that have resulted in a reduction in the rate at which scientific data can be transmitted to the ground from the on-board recorder. According to the Hinode Science Working Group "The problem will have a significant impact on how the Hinode mission is operated." For further details see http://spd.aas.org/SolarNews/archive/news.html#section1. * In the future SOHO's DSN contacts will grow shorter as we lose 26-m antenna support and other, new missions get higher priority. The instrument teams are therefore requested to look at the NRT commanding that is done (especially for emergencies and recoveries) and see what can be converted into TSTOLs that the FOT can run (even without explicit instrument or SOC direction). * MDI high-rate support requests: no change, see URL http://sohowww.nascom.nasa.gov/operations/SPWG/spwg-20080118.html * DSN support requests: preferably at least 6 months in advance. Keep this in mind for: ground-based collaborations that require MDI support, stellar/shutterless observations that require NRT, etc. * Future Mercury and Venus transits: no change, see URL http://sohowww.nascom.nasa.gov/operations/SPWG/spwg-20080118.html * Hinode operational and planning information and guidelines: no change, see URL http://sohowww.nascom.nasa.gov/operations/SPWG/spwg-20080118.html and http://sohowww.nascom.nasa.gov/soc/JOPs/jop-submit.html * STEREO operational and planning information: no change, see URL http://sohowww.nascom.nasa.gov/operations/SPWG/spwg-20080118.html * The SOHO JOP/ICAL database and the web pages are now the Solar JOP/ICAL database and web pages. This is due to anticipated increased contributions by and collaborations as well as intercalibrations with STEREO and Hinode. * New JOP vs. modified existing JOP rules-of-thumb: no change, see URL http://sohowww.nascom.nasa.gov/operations/SPWG/spwg-20080118.html * SOHO calendar email notifications: no change, see URL http://sohowww.nascom.nasa.gov/operations/SPWG/spwg-20080118.html $Log: agenda.txt,v $ Revision 1.8 2008/05/02 13:57:41 tsiili Corrected remaining unchanged SUMER dates. Deleted JOP 209 from the SUMER observation period. Added CDS comments by Fludra. Revision 1.7 2008/05/01 23:38:05 tsiili Added TRACE comments by Myers. Revision 1.6 2008/05/01 23:32:57 tsiili Added MDI comments by Gregory. Revision 1.5 2008/05/01 23:17:18 tsiili Added comments EIT comments by Schenk. Revision 1.4 2008/05/01 23:02:33 tsiili Added SUMER comments by Curdt. Some issues remain open. Revision 1.3 2008/04/22 21:25:11 tsiili Added comment tags. Complete draft. Revision 1.2 2008/04/22 21:12:22 tsiili Almost ready draft. Revision 1.1.1.1 2008/04/22 20:03:17 tsiili Importing draft for SPWG meeting on 20080502