SOHO SPWG Minutes



SPWG FINAL MINUTES
Friday 19 November 2004

1. Boundary conditions


- SOHO is right side up, until the the next manoeuvre, scheduled for 21
  December. The manoeuvre will consist of a momentum management, station
  keeping, and a 180 degree roll. Total fuel estimate: 0.1388 kg.

- No precautions are recommended for this year's Leonids.

- A test of a modified telemetry acquisition procedure for 34m stations
  while on the Low Gain Antenna will be scheduled between the MDI
  continuous ending December 5 and the winter keyhole.

- Using the intermittent (SSR) recording patch, we expect to be able to
  get continuous data for GOLF, VIRGO, and MDI for the winter keyhole.
  The DSN times for the keyhole can be found at:
  http://sohowww.nascom.nasa.gov/soc/keyhole.dec04

- The scheduling windows for the following 2 keyhole periods are given
  below.  Note: Some tentative changes (expanding the 26m keyholes)
  have been done based on historical performance and taking the
  varying SOHO-Earth distance into account. For estimated keyhole
  dates through 2007 see http://soho.nascom.nasa.gov/soc/keyholes.txt

* Mar 02        High Rate on 26m stations ends, TBC
* Mar 10        High Rate on 34m stations ends, TBC
* Mar 24        High Rate on 34m stations resumes, TBC
* Apr 01        High Rate on 26m stations resumes, TBC

* Jun 05        High Rate on 26m stations ends, TBC
* Jun 10        High Rate on 34m stations ends, TBC
* Jun 20        High Rate on 34m stations resumes, TBC
* Jun 25        High Rate on 26m stations resumes, TBC

- Long-term DSN outlook: Although substantial losses of normal VC0/1 are
  expected during 2005/2006 keyholes, we have good hope that GOLF, VIRGO
  and MDI will be continuous thanks to the recording patch.

- TRACE is in eclipse season - estimated to end around February 4.
  Eclipse operations will be simple as usual and no JOPS other than
  those already agreed to will be supported, unless unusual
  circumstances occur. Time may be set aside for engineering during
  eclipse season.

- Unless a Major Flare Watch is in progress, TRACE will be doing full
  disk mosaics if/when EIT is not able to do synoptic sets due to
  keyhole operations.

- MDI continuous contacts

* Dec 2-5       MDI Continuous Contact (reserved for helioseismology only)

  Final decision on modes will be made closer to the scheduled time.

  As usual, 96 minute magnetograms will be available.

- ALL KNOWN submode dependent activities & submode schedule:

  NOTE ADDED AFTER MEETING: With the intermittent recording patch, it
  may be possible to record LASCO/EIT and/or CELIAS during
  keyholes. In many cases, recording LASCO/EIT will require submode 5
  to reduce the bandwidth, so we now list keyholes as a submode
  dependent activity. We have also been informed of tentative plans
  for default SUMER operations periods: May 1-June 15 and November
  1-December 15. There were already DSN requests made for EIT
  shutterless observations for next year during both of these periods,
  and these are conflicts that have to be worked out. Suggested MEDOC
  dates have also been modified.

* TOO           JOP153/MMOP003 Future Major Flare Watch (Submode 5 if SUMER 
                  observes target, submode 6 otherwise), TBC
* TOO           JOP175 Extended Filaments at the Limb (see sect. 2a)
* Nov 22-30     SUMER mini-campaign
* Nov 30        EIT Shutterless, 17:00-19:40 UT
* Dec 1         SUMER campaign extension (as long as detector A is working)
* Feb 16,23     EIT Shutterless
* May 1-Jun 15  SUMER Campaign, TBC
* May 4,11      EIT Shutterless
* Jun 5-25      26m Keyhole (Jun 10-20 34m Keyhole)
* Aug 24, 31    EIT Shutterless
* Aug 29-Sep 29 26m Keyhole (Sep 7-21 34m Keyhole)
* Nov 1-Dec 15  SUMER Campaign, TBC
* Nov 23,30     EIT Shutterless
* May 16-Jun 5  MEDOC campaign #15, TBC

  Submodes: 
  Submode 5: Monday November 8, 17 UT - Thursday November 30, 14 UT
  Submode 6: Thursday November 30, 14 UT - December 1, 19 UT
  Submode 5: December 1, 19 UT - until further notice

- EIT Bakeout/Other

* During winter keyhole, times TBD

- Commanding outlook: See AOB section.

2. Priorities for the coming month & more


a) Joint observing plans and campaigns

Continuing campaigns:

* 2002/02/25--  JOP136 Default RHESSI Collaborations (#6850), POC:Stein Haugan
* 2003/05/13--  Default CDS Co-observations with TRACE (#6950)
* 2004/11/15--  JOP153/MMOP003 Future Major Flare Watch (#8001)
* 2002/04/25--  JOP159 CMEs in Lyman-alpha (#6870), SWAN/LASCO/EIT/UVCS,
                  POC: Chris St Cyr, Eric Quemerais
* Feb-Sep 2004  Quiescent AR Loop Diagnostics (#7019), CDS/TRACE/EIT/SUMER,
                  POC: Helen Mason (h.e.mason@damtp.cam.ac.uk),
                  Local POC: CDS Planner
* 2004/02/19--  JOP175 Extended Filaments at the Limb, EIT/TRACE/LASCO/UVCS,
                  POC: Chris St Cyr (Chris.StCyr@nasa.gov)
* 2003/07/01--  Network-Internetwork Oscillations (#7033), EIT/TRACE,
                  POC: Scott McIntosh

  Campaign #6850 is for "individual instrument studies" selecting an AR
  target [partially] influenced by the Max Millennium target selection
  to maximise chances of serendipitous co-observations.

  The running of the Quiescent AR Loops is left to the decision of the
  CDS planner.

  EIT supports all with half/full-res 195  CME watch in submode 5/6,
  except JOP175 getting half/full-res 304  CME watch in submode 5/6,
  and Network-Internetwork Oscillations which is TBD by Scott McIntosh.
  As long as the S/C is in submode 6, all EIT CME watch will be in full
  res.

  An extension of the Quiescent AR Loop Diagnostics campaign is being
  discussed by the CDS team.

  Campaign 7033 is probably on hold until after the TRACE eclipse
  season?

* Nov 22-30     SUMER mini-campaign

  See note under Section 2c for details. Note though, that with
  the detector A problems, plans are likely to change.

  This campaign will be extended, assuming detector A is still working.

* Nov 23-Dec 2  JOP173 3D Structure and Dynamics of Sunspots, 07:00-18:00 UT,
                  CDS/TRACE/MDI/VTT/THEMIS/SST/DOT/MST,
                  POC: Karin Muglach (muglach@nrl.navy.mil)/Bernhard Fleck

  Note: A new JOP description including CDS details has been submitted.

  MDI confirms support of JOP173.  We will provide 1 minute, High
  Resolution Magnetograms, Dopplergrams and Filtergrams if the JOP173
  target is within the HR FOV and will provide 1 minute Full Disk
  Magnetograms and Dopplergrams if the target is not within the MDI
  HR FOV. Support may be cut short by the MDI CC starting December 2.

  See also http://www.aip.de/~hoba/observing2004.html for more details.

* Nov 27-Dec 10 Ulysses Quadrature, UVCS/SUMER/Ulysses, POC: Giannina Poletto

  SUMER will support until November 30 (but may also continue during
  the campaign extension after that).

* Nov 30        EIT Shutterless #17, EIT/MDI/CDS/TRACE/SPIRIT, 
                  POC: Gareth Lawrence (gareth.lawrence@oma.be)

  NOTE ADDED AFTER MEETING: JOP173 will be paused at 16 UT, allowing
  CDS and TRACE to support the shutterless without a conflict.

  EIT thanks SUMER and CDS for supporting the submode change on this
  date.

  CDS will join.

  TRACE will support when not in eclipse.

  MDI can support with whatever is done for JOP173 (will likely be in
  the HRFOV), if acceptable.  We can also provide 96 min. synoptic
  Mags.

  Current plans for EIT is to take a 13x13 block as far into a corner
  as possible, putting the innermost corner at about N/S 18 E/W 18.
  The usual exposure times and cadence would be used, most likely
  passband is 171. The motivation is the SWAP instrument that is being
  developed in Belgium between ROB and CSL, capable of autonomous
  offpointing to track events.

* Dec 2-5       MDI Continuous Contact

  Reserved for helioseismology. Will likely run full disk AND high
  resolution Dopplergrams at 1 minute cadence. FOV size and
  orientation TBD.

* Dec 12-18     Emergence and Evolution of AFS in Solar ARs, MDI/THEMIS,
                  POC: Francesca Zuccarello (fzu@ct.astro.it) &
                  Paolo Romano (prom@ct.astro.it)

  MDI will support with some High Rate observations and 96 minute mags
  (during the keyhole mags will only be taken when telemetry schedule
  allows). The details will need to be hashed out a little bit.

  TRACE does not support this study due to the eclipse season.

* Dec 13        High Rate on 26m stations ends, TBC
* Dec 16        High Rate on 34m stations ends, TBC
* Dec 21        S/C Maneuvers
* Dec 26        High Rate on 34m stations resumes, TBC
* Dec 29        High Rate on 26m stations resumes, TBC

* Apr/May       Moving Magnetic Features around Sunspots, 
                  MDI/TRACE(TBC)/Sac Peak,
                  POC: Mandy Hagenaar, hagenaar@lmsal.com

  Sac Peak proposal deadline is December 14. MDI has no conflicting
  requests or constraints.

b) Intercalibration activities

  Last Intercal 1: October 14 (Week 42)

* Week 47/48/49 ICAL01, CDS/EIT, POC: EIT and CDS planners

  SUMER does not want to participate. Submode 5 or 6 does not
  matter for EIT.

  The next ICAL will be in early January (after the keyhole).

c) Individual instrument plans

MDI:

  See section 1 (boundary conditions) for MDI continuous contact
  periods.

  With the recording patch in place for the winter keyhole, and given
  that MDI can expect near-continuous medium-l data and some VC2
  during 70m contacts, MDI will likely take 3 magnetograms per day,
  one of which may be downlinked in VC1 and two in VC2 (TBC).

  All requests for MDI support need to be made several months ahead of
  time and sent to mdi-ops@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.

UVCS:

  For weekly plans, see the SOHO calendar and the UVCS planning page:
  http://cfa-www.harvard.edu/uvcs/observations/obst.html

  The following are listed because of NRT requirements or as candidates
  for collaboration (with e.g. CDS):

* Dec 11-12     UVCS Star Observations
* Dec 13        UVCS Observations of the He I Focusing Cone

CDS:
  See their request diary for details:
    http://solar.bnsc.rl.ac.uk/scientificops/request.shtml

LASCO/EIT:

SUMER:

  See note about MEDOC campaign in section 1 and the MEDOC page
  http://medoc-ias.u-psud.fr/operations/cmp14/calendar.html

  Plans for the mini-campaign (note that these may change due to
  the situation with detector A):

  Enrico Landi, active region diagnostic
  Luca Teriaca, SOHO-Ulysses quadrature
  Nour-Eddine Raoufi & Davina Innes; UVCS - SUMER CME campaign
  Uri Feldman & Enrico Landi; He abundance study

  SUMER plans to resume operations in spring. Details depend on the
  detector status and are still TBD.

  Note: UVCS does not have any plans for the CME campaign.

TRACE:

- TRACE is in eclipse season - estimated to end around February 4.
  Eclipse operations will be simple as usual and no JOPS
  other than those already agreed to will be supported, unless unusual
  circumstances occur. Time may be set aside for engineering during
  eclipse season.

  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.

3. AOB


* Next SPWG: Friday 17 December, right after weekly meeting in the EOF.

The rest are FYI items:

* If anyone has projects that require high-cadence 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.

* Commanding outlook:

  Normal coverage until MDI continuous December 2-5, then normal
  coverage until the keyhole, December 13-29, with limited NRT.
  Starting in early January, DSN coverage is normal, with mostly small
  afternoon gaps each week.