FINAL MINUTES FOR SOHO 18 Jan 2008 SPWG MEETING
1. Boundary conditions
a) Orbit, attitude and manoeuvres - SOHO is in upside down roll (180 deg) position - manoeuvres To the degree possible, manoeuvres take place during the last days of 34-m keyholes. Currently set manoeuvre dates are: Feb 19 station-keeping and momentum management Feb 22 roll May 20 (TBC) station-keeping, momentum management, roll b) Communications with the spacecraft Graphical DSN schedule: http://soho.nascom.nasa.gov/soc/dsn/ Keyhole dates for the next 6 months: * Feb 4-Mar 2 26 m keyhole * Feb 11-24 34 m keyhole * May 7-25 26 m keyhole * May 11-21 34 m 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 upgrade-to-uplink reviews are scheduled for 29-30 Jan. - D45 and D65 comprise approximately third of the passes during the Feb 4-Mar 2 keyhole period The capabilities and the timing of the uplink availability of D45 and D65 remain hence TBD up to few days prior to the beginning of the keyhole. The keyhole will as a baseline be planned based on neither of the two being uplink-capable at any time during the keyhole. Alternative plans will be made and the keyhole pass schedule adjusted, if possible. c) KNOWN submode (SM) dependent activities/submode changes: * TOO JOP153/MMOP003 Future Major Flare Watch (SM5 if SUMER observes target, SM6 otherwise) * Jan 23, 30 EIT shutterless #30 (SM6) * Apr 9,16 EIT Shutterless #31 (SM6) * Apr 21-May 8 SUMER Campaign, TBD (SM5) * Jul 23,30 EIT Shutterless #32 (SM6) - 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. - There may be a submode-related timing conflict between EIT shutterless 31 (Apr 9, 16) and the TBD SUMER support of Whole Heliospheric Interval (WHI) campaign (Mar 20 - Apr 16; see section 2b for WHI details). d) Instrument maintenance activities EIT bakeout periods will be during keyholes. Dates and times are defined when the DSN schedules become available. TRACE annealing is scheduled for the week starting 25 Feb 2008. e) Others TRACE winter eclipse season is 13 Sep 2007 - 13 Mar 2008. Hard eclipses started on 23 Sep 2007 and will end on 2 Mar 2008. 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 * Dec 3-Feb 3 MDI 60-day Continuous Contact * Jan 23,30 EIT Shutterless #30. POC: S. Parenti Run times: Jan 23, 2008 DSS-66 13:00-15:50 UT Jan 30, 2008 DSS-66 13:00-15:50 UT * Mar 3-May 4 MDI 60-day Continuous Contact This will not be rescheduled. * Mar 20-Apr 16 Whole Heliosphere Interval (WHI) Campaign, CDS/CELIAS/COSTEP/EIT/LASCO/MDI/UVCS/TRACE(TBC)/ Hinode-EIS/Hinode-SOT/Hinode-XRT/STEREO-SECCHI/ STEREO-EUVI/STEREO-HI/STEREO-PLASTIC, POC: Sarah Gibson, TBD The current thinking is that this set of campaigns (associated with the International Heliospheric Year - IHY) will be structured as multiple JOPs, but be centrally coordinated in the same fashion as the Aug 2007 run of JOP194. The tentative JOP titles and timings are: Mar 20-26: JOP 201 Linking the Corona to the Solar Wind at Ulysses, LASCO/UVCS/Hinode-EIS/Hinode-SOT/Hinode-XRT/ TRACE/EISCAT/HSO/IPS/Ooty (POC: G. Poletto, URL http://web.hao.ucar.edu/~sgibson/WHI/WHI-HOLEULYSSES.html) Mar 27-Apr 2: JOP 202 Origin of the Slow Solar Wind/Streamer Study CDS/LASCO/UVCS/Geotail/Hinode-XRT/TRACE/Ulysses/EISCAT/ Nagoya/Nancay/OOTY (POC: Strachan, URL http://web.hao.ucar.edu/~sgibson/WHI/WHI_Slow_Wind.html) Apr 3-9: JOP 203 Coronal Hole Boundary & Low-latitude Coronal Holes, CELIAS(TBD)/COSTEP/LASCO(TBD)/MDI(TBD)/SUMER/UVCS/ ACE-SWICS/Hinode-EIS/Hinode-SOT(TBD)/Hinode-XRT/ STEREO-PLASTIC/STEREO-SECCHI(TBD)/STEREO-SEPT/TRACE/ Ulysses-KET/Ulysses-SWICS/MLSO-MK4(TBD)/NSO-SOLIS(TBD)/ Ooty/STELAB-IPS/Nancay (POCs: M. Miralles and C. DeForest, URLs http://web.hao.ucar.edu/~sgibson/WHI/WHI-TOO_EQHOLE.html and http://sohowww.nascom.nasa.gov/soc/JOPs/jop203.html). As default a polar hole from the north and on the east limb (due to Ulysses) will be selected as target. If an equatorial coronal hole is present (as is likely at this point), the Target of Opportunity 2 (JOP 206; see below) will be run. Apr 10-16: JOP 204 Characterizing the energetics and dynamics of the quiet Sun, CDS/EIT/MDI/SUMER(TBD)/UVCS/Hinode-EIS/ Hinode-SOT/Hinode-XRT/STEREO-SECCHI/STEREO-EUVI/TRACE/ HSO-COMP/HSO-MOTH/NSO-IBIS/NSO-SPINOR (POC: S. McIntosh, URL http://web.hao.ucar.edu/~sgibson/WHI/WHI-QS.html) Targets of Opportunity (ToO) JOPs are: ToO-1: JOP 205 Active Regions, EIT/MDI/Hinode-EIS/Hinode-SOT/ Hinode-XRT/STEREO-COR1/STEREO-COR2/STEREO-EUVI/RHESSI/STEREO-HI/ STEREO-SECCHI/TRACE/Nancay/SMEI (POC: Leamon, URL http://web.hao.ucar.edu/~sgibson/WHI/WHI-TOO_AR.html) ToO-2: JOP 206 Low-latitude Coronal Holes, CELIAS(TBD)/ COSTEP/LASCO(TBD)/SUMER/UVCS/ACE-SWICS/Hinode-EIS/ Hinode-SOT(TBD)/Hinode-XRT/STEREO-PLASTIC/STEREO-SECCHI(TBD)/ STEREO-SEPT/TRACE/Ulysses-KET/Ulysses-SWICS/MLSO-MK4(TBD)/ NSO-SOLIS(TBD)/Ooty/STELAB-IPS/Nancay (POC: M. Miralles, URL http://web.hao.ucar.edu/~sgibson/WHI/WHI-TOO_EQHOLE.html and http://sohowww.nascom.nasa.gov/soc/JOPs/jop206.html) ToO-3: JOP 194 Activity in filaments and filament channels (POC: Gibson, URL http://web.hao.ucar.edu/~sgibson/CIP21/topcampaign.html) If a ToO JOP is run, the week's regularly scheduled JOP would also be run, but for a reduced time. UVCS will support. TRACE has received a request to support. MDI can support all JOPs with full disk, 1 minute cadence, magnetograms and dopplergrams in addition to the 96 minute synoptic magnetograms and continuum images (when in high rate). According to a 15 Jan 2008 e-mail from S. Gibson, high-resolution MDI observations will not be needed for this campaign. CDS will participate. As requested, the relevant JOP descriptions have been forwarded to the CDS team. SUMER has plans to (partly) participate in the WHI activities (SUMER campaign dates remain TBD and MAY overlap with the WHI). SUMER has been contacted to participate in JOP 204. We plan to do so, but need further information. There may be a submode-related timing conflict between EIT shutterless 31 (Apr 9, 16) and the TBD SUMER support of WHI observations. SUMER is requested to confirm WHI participation dates and times. See also section 1c. * Apr 9,16 EIT Shutterless #31 * Apr 21-May 8 SUMER Campaign, TBC There are plans to (partly) participate in the WHI activities. See also section 2c. Dates remain TBC. The campaign will be structured as multiple JOPs in the same fashion as the 2006 SUMER campaigns have been. Currently submitted JOP/HOP proposals are (timings remain TBD): 1) JOP 207 Eruptive and quiescent prominences Atlas with SOHO and Hinode, CDS/SUMER/Hinode-EIS/Hinode-SOT/Hinode-XRT, POC: Susanna Parenti. 2) Relationship between movements of magnetic features and mass outflow in funnels, MDI/SUMER/Hinode-EIS/Hinode-SOT/Hinode-XRT/TRACE, POC: Hui Tian 3) Coronal bright points in quiet Sun and coronal hole, MDI/SUMER/Hinode-EIS/Hinode-SOT/Hinode-XRT/TRACE, POC: Hui Tian 4) Checking the possible drives of solar wind origin in the coronal hole, SUMER/Hinode-EIS/Hinode-SOT/Hinode-XRT, POC: Hui Tian 5) How does the solar wind originate from the quiet-Sun region? SUMER/Hinode-EIS/Hinode-SOT/Hinode-XRT, POC: Hui Tian 6) Connection between UV explosive event and magnetic cancellation, SUMER/Hinode-EIS/Hinode-SOT/Hinode-XRT, POC: Hui Tian * Jun 11-15 MDI Continuous Contact The default campaign will be full disk Magnetograms and Dopplergrams. 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. * Jul 9-13 MDI Continuous Contact The default campaign will be full disk Magnetograms and Dopplergrams. 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. * Jul 23,30 EIT Shutterless #32 b) Intercalibration activities Last Intercal 1s: Dec 5, 2007 and Jan 16, 2008 * Feb 4-8 ICAL01 (#7113), CDS/EIT/Hinode-EIS ICALs are normally performed monthly. Possible EIS collaboration. CDS views Hinode-EIS participation as extremely important. EIS and Stereo have been added to the Campaign #7113 description. Details and confirmation will be determined by the planners. EIT: ICALs are OK except (usually) during the weeks of shutterless --- whenever CDS prefers. ICAL 1 on the week Feb 4-8 is OK. 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 back in Focus 5 for best focus for FD observing and will stay there at least until May 2008. UVCS: We have been using the LyA detector for some observations and will keep planning so when appropriate. For weekly plans, see the SOHO calendar and the UVCS planning page: http://www.cfa.harvard.edu/uvcs/observations/obst.html. CDS: For details see http://solar.bnsc.rl.ac.uk/scientificops/request.shtml. 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 6hr cadence till Apr 2008. POC: Angelos Vourlidas. SUMER: A 2-week long SUMER campaign from April 21 to May 8, 2008 is being planned, but the dates are TBC. SUMER plans also to support the Whole Heliospheric Interval (WHI) activities earlier in April. See also section 2a above. SUMER has received six JOPs/HOPs for this campaign. Priority will be given to those sets of observations, which are new. Planning will be done with and details given in the planning tool http://www.mps.mpg.de/homes/theissen/scr/planning/index.cgi. The tool will be opened as soon as the dates are fixed. Observers are requested to communicate their details via this tool. 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. During our fall eclipse season that starts in October, we will accept observing requests through November 1st. Any observations that are to take place after November 1st will be evaluated in October once eclipse season has started and then we will decide what makes sense for us to support. During the period of deepest eclipses (Nov. 16 - Feb. 15) of its winter eclipse season, TRACE will be operated by three command loads per week (Mondays, Wednesdays, and Fridays). TRACE will accept a limited number of JOP requests, giving preference to those that involve multiple observatories (in space and/or on the ground), provided that their targets can be specified on a schedule that is compatible with the reduced frequency in instrument command loads during the winter eclipse season). TRACE annealing is scheduled for the week starting 25 Feb 2008.
3. Any other business
* Next SPWG: Friday 29 Feb after daily & weekly meetings. The rest are FYI items: * 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). * If anyone has projects that require high rate (i.e. 1 minute cadence and anything other than 96 minute synoptic Magnetograms) MDI support, now is a good time to ask! If you need MDI data, make sure you request it specifically. There is no significant change in the shutter performance over the last 10 months; monitoring continues, but no immediate changes in operations are planned. * DSN support should be requested 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: SOC is requesting the Flight Dynamics Facility (FDF) to provide estimates and data for not only disk, but also for coronal transits. For this purpose FDF needs a criterion (radial/angular distance from Solar disk centre) to define the coronal transits. Currently FDF has been instructed to use SOHO/Sun/[Mercury,Venus] angle of (35 arcmin (from centre of Solar disk) as criterion. Instrument teams are requested to provide the SOC with information on whether a larger angle is applicable. * Hinode operational and planning information can be found from http://www.isas.jaxa.jp/home/solar/hinode_op/. For contacts with the Hinode team(s), some guidelines... General discussion of campaign plans that are evolving and are several months away should go to the Hinode instruments' science schedule coordinators (SSCs). If a single clearly primary Hinode instrument can be identified, the campaign coordinators should contact the SSC of that instrument only. The Hinode instrument planners will not be involved until the detailed pointings and such are being discussed. The SSCs for the different Hinode instruments are: EIS: Len Culhane, John Mariska, Tetsuya Watanabe SOT: Thomas Berger, Takashi Sekii XRT: Leon Golub, Kiyoto Shibasaki * STEREO operational and planning information can be found via http://stereo-ssc.nascom.nasa.gov/, more specifically from http://stereo-ssc.nascom.nasa.gov/plans.shtml. Lead time for special requests for STEREO supports should be at least a month. * 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. * To provide more unambiguous identification, individual instruments on board spacecraft other than SOHO will be as of this SPWG be referred to with notation SPACECRAFT-INSTRUMENT, for example Hinode-EIS. * New JOP vs. modified existing JOP rules-of-thumb: New JOP, if/when scientifically or qualitatively new type of a coordination is set up; modified JOP, when the investigation (the foci or targets thereof) remains essentially the same but new instruments/spacecraft/GBOs/etc are brought to bear. * SOHO calendar email notifications: a new mailing list for notifications of changes in the SOHO calendar has been taken into use. Distributed changes are decided upon by the SOCs to be relevant (as opposed to corrections of typing errors, etc.). Examples are schedule changes, added and deleted campaigns and so forth. To join the list send e-mail to the SOCs.