15 June 2024 - Mission Day: 10424 - DOY: 167
Science Operations


1. Boundary conditions

a) Orbit, attitude and manoeuvres

- SOHO is in upside down roll position (180 deg).

- manoeuvres

  To the degree possible, manoeuvres take place during the last days of
  34-m keyholes.  Currently proposed or set manoeuvre dates are:

  Aug 19 (TBC)  station-keeping, momentum management
  Aug 22 (TBC)	roll

  Nov DD (TBC)  station-keeping, momentum management, roll; tentative dates are 
                 Nov 11, 18 or 19

b) Communications with the spacecraft

  Graphical DSN schedule: http://soho.nascom.nasa.gov/soc/dsn/

  Keyhole dates for the next 6 months (All available keyhole information is
  at or via http://soho.nascom.nasa.gov/soc/keyholes.html):

* Aug 01-30     26m Keyhole
* Aug 08-22     34m Keyhole

* Nov 05-22     26m Keyhole
* Nov 09-18     34m Keyhole

- DSN D45 and D65 (34-m) antennae status

  D45 and D65 are currently down-link/telemetry-only, but are being
  upgraded with up-link/commanding capabilities.  The estimated time for
  the upgrade to be operational is during the first half of July.

- End-of-pass handling during MDI continuous contact periods

  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.

c) KNOWN submode (SM) dependent activities/submode changes:

* TOO           JOP153/MMOP003 Future Major Flare Watch (SM5 if SUMER
                observes target, SM6 otherwise)
* Jun 19-Jul 3  SUMER observing (SM5)
* Jul 23,30     EIT Shutterless #32 TBC (SM6)
* Nov           SUMER campaign TBD (SM5)

  The next submode change 5->6 is scheduled for Jun 19, 2008 at 15 UT. The
  next change 6->5 is scheduled for Jul 3 (TBC). For details on the Jun 23
  to Jul 3 SUMER observations, see section 2a.

  SUMER campaign dates may overlap with keyholes. Such overlaps shall be
  scheduled only if periods of no SUMER data between passes are acceptable.

  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.

  SUMER says there is no decision yet, but November campaign is unlikely to happen

  EIT Shutterless #32 times as follows:
  July 23, 2008: DSS-27 19:50-02:30 UT, runtime 21:00-23:50 UT (automation)
  July 30, 2008  DSS-27 14:40-21:40 UT, runtime 17:00-19:50 UT

d) Instrument maintenance activities

  EIT bake-out periods will be during keyholes.  

  Dates depend on August keyhole schedule.

e) Others

  TRACE summer eclipse season began on 10 May 2008 and according to latest
  predicts 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.

  Attended automated daytime passes will begin during the week starting Mon
  16 Jun. Unattended daytime automation will begin 1 October.

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.

--> #Hinode-EIS, #RHESSI: changes, comments?

* Jun 22-Jul 03	Polar Plume Observations (#7276), UVCS/SUMER, 
                  POC: Giannina Poletto

  SUMER campaign begins officially on June 23, but the detector will be
  powered on on June 19 after the submode change.  The objective of the
  polar plume observations is twofold:

  1) infer the outflow speed wind profile in plume/interplume regions, 
  2) characterize the evolution in time of the morphological/physical
     properties of plumes.

* Jun 23-Jul 3  JOP 213 Chromospheric network structure and dynamics,
                  SUMER/MDI/Hinode-SOT/SST/TIP II/ZIMPOL II,
                  POC: Anna Pietarila

  For details see the JOP 213 description at URL

  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.

  CDS is interested in participating --- requests to be informed of targets
  & times

--> #Hinode-SOT: changes, comments?

* Jun 23-Jul 3  SUMER observing

  See also section 1c.

  The June 2008 SUMER observation period will be of limited scale and
  scope, not a full-fledged campaign. SUMER will support or carry out the
  following observations:

  - Polar Plume observations with UVCS (see above)
  - JOP 213 (see above)
  - JOP 207 (see below)
  - JOP 208 (see below)
  - Lyman-alpha profile and center-to-limb variation (see below)

  Running of the other proposed JOPs (JOPs 210-212; see, e.g.,
  http://sohowww.nascom.nasa.gov/operations/SPWG/spwg-20080523.html) in
  full remains TBD.

  Jun 23-Jul 3  JOP 207 Eruptive and quiescent prominences Atlas with 
  		  SOHO and Hinode,
                  POC: Susanna Parenti.
                  Timing TBD.

  Jun 23-Jul 3  JOP 208 Relationship between movements of magnetic 
  		  features and mass outflow in funnels, 
                  POC: Hui Tian.

  SUMER also has plans for a dedicated observation "Lyman-alpha profile and
  center-to-limb variation".  The aperture door will be used to partially
  vignette the incoming photon flux, thus avoiding detector saturation.
  This has never been tried before. MDI and TRACE have been contacted to
  support this special observation.  The timing depends critically on the
  availability of NRT, since the operation (about 1 hour) has to be carried
  out interactively. Preferred dates would be 25 or 26 June.

  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.

  At MDI's request the SOCs inquired about additional DSN coverage for Jun
  25-26 (and possibly also for Jun 23 -- Jul 3). There is, however, no
  flexibility due to Phoenix along with three other Mars missions being in
  90-day continuous coverage.

  CDS requests to be added to the mailing list, as all JOPs of interest to
  CDS, particularly to co-observe with Hinode.

  EIT is waiting for JOP requests.

  TRACE has received a request for JOP 208/209 and plans to support

  CDS has begun participating in JOP 207.

  SUMER says JOP207 is a TOO.

  No support requested for EIT.

--> #Hinode-EIS, #Hinode-SOT, #Hinode-XRT: changes, comments?

* Jul 9-13      MDI Continuous Contact

  Note "End-of-pass handling during MDI continuous contact periods" in
  section 1b.
  MDI has not gotten specific requests for this time period. MDI will do
  full disk, 1-min cadence magnetograms and dopplergrams unless there is an
  interesting target in the HRFOV.

* Jul 23,30     EIT Shutterless #32

  The DSN schedule for the shutterless dates is confirmed.

  EIT Shutterless #32 times as follows:
  July 23, 2008: DSS-27 19:50-02:30 UT, runtime 21:00-23:50 UT (automation)
  July 30, 2008  DSS-27 14:40-21:40 UT, runtime 17:00-19:50 UT

* Sep 24-28     MDI Continuous Contact

  Note "End-of-pass handling during MDI continuous contact periods" in
  section 1b.
  We may do high resolution observations for Helioseismology.  Observables
  will be high resolution magnetograms, dopplergrams and filtergrams at
  1-min cadence.  FOV is TBD.

* Oct 15-19     MDI Continuous Contact

  Note "End-of-pass handling during MDI continuous contact periods" in
  section 1b.
  We may do high resolution observations for Helioseismology.  Observables
  will be high resolution magnetograms, dopplergrams and filtergrams at
  1-min cadence.  FOV is TBD.

* Nov TBD       SUMER/Hinode campaign

--> #Hinode: changes, comments?

  SUMER says there is no decision yet, but November campaign is unlikely to happen

* Dec 10-14     MDI Continuous Contact

  Note "End-of-pass handling during MDI continuous contact periods" in
  section 1b.
  Standard full disk, 1-min cadence magnetograms and dopplergrams.

b) Intercalibration activities

  Last ICAL was: Jun 9

  ICALs are normally performed monthly. Below is a SOC proposal for ICAL
  weeks for the next six months.

* 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

* Oct 6-10      ICAL01 (#7113), CDS/EIT/Hinode-EIS/STEREO

* Nov 3-7       ICAL01 (#7113), CDS/EIT/Hinode-EIS/STEREO

* Dec 1-5       ICAL01 (#7113), CDS/EIT/Hinode-EIS/STEREO

  Proposed compiled ICAL scheduling criteria, constraints and guidelines
  (see also campaign #7113):

  1) EIT/CDS are the primary participating instruments

  2) CDS: Hinode-EIS participation is extremely important and participation
     is to be attempted within the limitations of the constrained Hinode
     operations (see "FYI items" in section 3)

  3) STEREO-EUVI observations are included when possible. ICALs are
     attempted to be scheduled not to coincide with STEREO manoeuvres or
     other interruptions in observations (see

  4) EIT: ICALs OK at all other times except the weeks of shutterless

  5) Dates, details and confirmation will be determined by the planners
     with support from the SOHO SOCs.

--> #Hinode-EIS, #STEREO: changes, comments?

  CDS okay. If Hinode-EIS can suggest convenient date & time, CDS can usually

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 down-link 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.


  For weekly plans, see the SOHO calendar and the UVCS planning page:


  For details see http://solar.bnsc.rl.ac.uk/scientificops/request.shtml.


  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.


  Next SUMER observation periods:

  June 22-July 3
  Nov (timing TBD)

  See section 2a for details.


  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

* Tentative SPWG meeting times for next six months (only the next one will
  be decided in this meeting). Meetings take place as a baseline on Fridays
  after the daily and weekly meetings.

  Jul 25
  Aug 29
  Sep 26
  Oct 24
  Nov 21
  Dec 19

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

* 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

* 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

* 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

* 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

* SOHO calendar email notifications: no change, see URL


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