Friday 15 December 2006

1. Boundary conditions

a) Orbit, attitude and manoeuvres

- SOHO is currently upside down

- manoeuvres

  Feb 27        stationkeeping and momentum management (timing TBC); roll
                date TBD

  May 29        roll, stationkeeping and momentum management (timing TBC)

b) Communications with the spacecraft

  Graphical DSN schedule:

  Madrid 70 m antenna is scheduled to be operational again as of 
  2 Jan 2007, possibly even earlier.

* Feb 13-Mar 12 26 m keyhole
* Feb 20-Mar 5  34 m keyhole

* May 18-Jun 5  26 m keyhole
* May 22-May 31 34 m keyhole

- The need and approach to reduce FOT manpower requirements needed for
  complex operations during the keyhole remains in effect until further 

  All available keyhole information is at

c) KNOWN submode dependent activities/submode changes:

* TOO           JOP153/MMOP003 Future Major Flare Watch (SM5 if SUMER
                observes target, SM6 otherwise)
* TOO           JOP175 Extended Filaments at the Limb (see sect. 2a), SM6
* Jan 17,24     EIT Shutterless #26, TBC
* Mar 13-Apr 30 SUMER/Hinode campaign, SUMER/EIS, TBC by Hinode team
* May 1-14      SOHO/STEREO campaign, EIT/SECCHI (dates TBC after Hinode 
* May 9,16      EIT Shutterless #27, TBC

- 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

d) Instrument maintenance activities

   EIT bakeout periods will be during keyholes.  Dates and times are
   defined when the DSN schedules become available.

e) Others

- TRACE eclipses

* Oct 5-Mar 1   TRACE winter (hard) eclipse season

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)
* 2004/02/19--  JOP175 Extended Filaments at the Limb (#7135), 
                POC: Chris St Cyr
* 2005/09/20--  JOP153/MMOP003 Future Major Flare Watch (#8007)

  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.

  EIT supports all with half/full-res 195 A CME watch in submode 5/6,
  except JOP175 getting half/full-res 304 A CME watch in submode 5/6. As
  long as the spacecraft is in submode 6, all EIT CME watch will be in full
  res.  Major Flare Watches will be in full-res even if it requires a
  submode change, unless the target is observed by SUMER.

  The relevance and continuation (whether the originators have
  enough/alternate data) of these campaigns (except perhaps for RHESSI) is
  under review.

* Dec 21-27    Ulysses-SOHO Quadrature Observations,
                 UVCS/CDS(TBC)/LASCO/Ulysses/STELKab, POC: Giannina Poletto

  The quadrature period extends until May 19, 2007.

  UVCS will encourage the lead observers to take advantage of the
  Ulysses-SOHO quadrature beginning this December when planning observation
  programs.  UVCS will schedule extra observation time devoted to this
  quadrature and said schedule will be made available to the SOHO SOCs.  A
  document from Steve Suess and Giannina Poletto discussing the
  Ulysses-SOHO quadrature geometry is available from Michael Uzzo and also

  The quadrature angle will be P.A.=196 during that time (SW limb; the
  position angle corresponds to 74 degrees south of the equator at the west

  LASCO will support with 4 C2 pB (orange filter, LEB binned) per day for
  the dates Dec 21-27 2006, unless a Major Flare Watch is declared.

  Given the extended duration of the quadrature, CDS will carry out several
  observations at a convenient date selected at a relatively short notice.

* Jan 6-8       MDI Continuous Contact

  Current default plan is full-disk magnetograms and dopplergrams.

* Jan 8-21      Polar Coronal Hole Study,
                 TRACE(TBC), POC: Mari Paz Miralles

  The POC is in the process of contacting these intruments about specific
  requests for the collaboration and will contact all relevant parties as
  soon as updates are available.

* Jan 17, 24    EIT Shutterless #26, TBC

* Feb 2-4       MDI Continuous Contact

  Current default plan is full-disk magnetograms and dopplergrams.

* Mar 13-Apr 30 SOHO/Hinode campaign, SUMER/CDS/EIS, POC: Werner Curdt

  Dates will be confirmed after Hinode commissioning.  SUMER starts
  collecting proposals. CDS will also support (see also section 2c).

* Mar 28-Apr 1  MDI Continuous Contact

  Current default plan is full-disk magnetograms and dopplergrams.  Timing

* Apr 25-29     MDI Continuous Contact

  Current default plan is full disk magnetograms and dopplergrams.  Timing

* May 1-14      SOHO/STEREO campaign, EIT/SECCHI, POC: William Thompson

  STEREO SECCHI prefers EIT to be obtaining full-resolution images, hence
  the SUMER/EIS campaign will take place already in March to avoid
  EIT/SUMER submode conflict.

  EIT science planner for that period still TBD (for some months).  Simon
  can contact Kevin and Joe in the meantime.

  Still TBD, if the shutterless run #27 on May 9 will be included.

* May 9, 16     EIT Shutterless #27, EIT/SECCHI (TBD)

* Jun 13-17     MDI Continuous Contact

  Current default plan is full disk magnetograms and dopplergrams.  Timing

* Jul 18-22     MDI Continuous Contact

  Timing TBC.

b) Intercalibration activities

  Last Intercal 1: 06 November 2006

* Dec 20        ICAL01 (#7113), CDS/EIT, TBC

* Jan 8-12      ICAL01 (#7113), CDS/EIT, TBC

  Details and confirmation will be determined by the planners.

  Future ICALs are TBD, although the week beginning 18 Dec should be OK.
  EIT: ICALs are OK except during the weeks of shutterless.

c) Individual instrument plans


  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)  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
  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
  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

  MDI is back in focus 5, best focus for full-disk observing.


  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:

  See also the Exceptional Ulysses Quadrature (19-25 Dec 2006 and onwards
  to May 2007) and the Polar Coronal Hole Study (8-21 Jan 2007) in section


  For details see

  Joint observations with EIS and other Hinode instruments are top priority
  for CDS for the next several months, including through the period of
  SUMER/EIS campaign in Mar-Apr 2007.  Detailed plan TBD.

  Detailed plans of Hinode instruments are made available to CDS at a short
  notice, usually one day in advance.  This is not fully satisfactory but
  we understand that the Hinode team are very busy at this stage.  CDS
  planners respond as appropriate.  If SOHO SOCs have access to Hinode
  weekly plans, forwarding them to us would be appreciated.


  For information: on Dec 13 first light image support for STEREO,


  The first SUMER/EIS collaboration was apparently very successful;
  scientific evaluation ongoing.  No SUMER operations before the SUMER/EIS
  campaign starting mid-March 2007.  Observational details and SUMER
  science planners for the campaign are TBD.


  NASA has announced that it plans to continue funding of TRACE operations
  at close to the FY06 level through FY08, followed by a significant
  ramping down of operations into FY09.

  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. Any other business

* Next SPWG:

  Friday 26 January after the daily and weekly meetings.

The rest are FYI items:

* If anyone has projects that require high rate (i.e. 1 minute 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.

* 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

* STEREO operational and planning information can be found via, more specifically from