SOHO SPWG Minutes
SPWG FINAL MINUTES
Friday 28 October 2005
1. Boundary conditions
- SOHO is right side up until the next manoeuvre, scheduled for
- Scheduling windows for keyhole periods through 2009 are listed on
the SOHO calendar and on http://soho.nascom.nasa.gov/soc/keyholes.txt
We've been warned that the March keyhole is likely to be very tight,
with very few 70m stations. We'll be very close to the absolute
minimum requirements to get MDI, GOLF and VIRGO continuous, which
means everyone else gets very, very little.
- 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
- MDI continuous contacts are listed in Section 2 a) below and on the
- 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
* Nov 30 EUNIS/MOSES launch, SM6, Date TBC
* Dec 3-20 26m Keyhole (Dec 6-17 34m Keyhole), SM5 or SM6(end)
* Jan 18,25 EIT Shutterless #22, 14:00-16:40 UT, SM6
* Feb 22-Mar 21 26m Keyhole (Feb 28-16 34m Keyhole), SM5/6
* Mar 29 Solar Eclipse, 08:34-11:48 UT, SM5, TBC
* Apr 12,19 EIT Shutterless #23, 18:00-20:40 UT, SM6
* May 1-June 15 SUMER Campaign, SM5, TBC
* May 27-Jun 14 26m Keyhole (May 31-Jun 11 34m Keyhole), SM5/6
* Jul 26,Aug 2 EIT Shutterless #24, SM6, TBC
* Aug 21-Sep 19 26m Keyhole (Aug 28-Sep 13 34m Keyhole), SM5/6
* Oct 18,25 EIT Shutterless #25, SM6, TBC
* Nov 1-Dec 15 SUMER Campaign, SM5, TBC
* Nov 24-Dec 11 26m Keyhole (Nov 27-Dec 08 34m Keyhole), SM5/6
Some of the 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 can be
- EIT Bakeout/Other
- TRACE Eclipse period
* Oct 14-Feb 17 TRACE Hard Eclipse Season
TRACE will change to loading only 3 days a week next week (week 44).
- Commanding outlook - see http://soho.nascom.nasa.gov/soc/dsn/
2. Priorities for the coming month & more
a) Joint observing plans and campaigns
* 2002/02/25-- JOP136 Default RHESSI Collaborations (#6850), POC:Stein Haugan
* 2002/04/25-- JOP159 CMEs in Lyman-alpha (#6870), SWAN/LASCO/EIT/UVCS,
POC: Chris St Cyr, Eric Quemerais
* 2003/05/13-- Default CDS Co-observations with TRACE (#6950)
* 2003/07/01-- Network-Internetwork Oscillations (#7033), EIT/TRACE,
POC: Scott McIntosh
* 2004/02/19-- JOP175 Extended Filaments at the Limb (#7135),
POC: Chris St Cyr (Chris.StCyr@nasa.gov)
* 2005/09/20-- JOP153/MMOP003 Future Major Flare Watch (#8004)
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 Å CME watch in submode 5/6,
except JOP175 getting half/full-res 304 Å 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. Major Flare Watches will be in full-res even if
it requires a submode change, unless the target is observed by
JOP175 will be listed as a top-priority TOO for February 18-27 and
* Oct 30 Daylight Saving Time ends at 1 UT (Europe) and 6 UT (US),
then GSFC local = UT-5 hours = Central Europe-6 hours
* Nov 7-22 Streamer Study, UVCS/CDS
* Nov 9-13 MDI Continuous Contact
In light of a recent MDI focus change to better focus for high
resolution observing, we will do a high resolution Continuous
Contact run. We will take 1 minute cadence, extracted Magnetograms,
Dopplergrams and Filtergrams. The FOV is 420"x420" and we will
likely center on disk center for the entire CC period.
We are looking into having New Norcia covering gaps/dovetailing
handovers between Canberra and Madrid. This is still TBD due to
uncertainty in the Venus Express launch schedule. With the
unofficial launch date of November 9, we may get support on
November 12 and 13.
* Nov 30 Sounding Rocket Launch, MOSES/CDS/EIT/MDI/TRACE, POC: Charles
Kankelborg (email@example.com), TBC
* Nov 30 Sounding Rocket Launch, EUNIS/EIT/CDS/TRACE/VLA,
POC: Jeffrey.W.Brosius.firstname.lastname@example.org, TBC
NOTE: New launch date. We've asked for backup stations during 15-21 UT.
If we do not get a backup station, Charles & Jeff have asked to go to
record - despite the loss of MDI high rate.
MDI requests that the recording be kept as short as possible to
reduce the impact on MDI high rate times.
Exact EIT details TBD, but will probably schedule a synoptic set plus
additional full-res images.
* Nov 27-Dec 11 Ulysses Quadrature
CDS has not received any request, but will consider advantages of
UVCS will try to support the quadrature as far into the keyhole as
* Dec 3-20 26m Keyhole (Dec 6-17 34m Keyhole)
The keyhole plan will hopefully be ready early November. If you have
any special requests (i.e. planned collaborations that you'd like to
have telemetry for), please contact the SOCs.
b) Intercalibration activities
Last Intercal 1: October 7 (with SUMER)
* Week 44 ICAL01 (#7113), CDS/EIT
* Week 48 ICAL01 (#7113), CDS/EIT, TBC
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 70m antenna
availability at the time.
All requests for MDI support need to be made several months ahead of
time and sent to email@example.com. 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 currently in better focus for high resolution observing and
we plan on doing as much high resolution observing as possible until
~Jan/Feb 2006. If anyone has HR requests, send email to
We plan to use the LyA detector for special observations in the
future when appropriate.
For weekly plans, see the SOHO calendar and the UVCS planning page:
The following are listed because of NRT requirements or as candidates
for collaboration (with e.g. CDS):
* Oct 26-Nov 06 UVCS Suprathermal Seed Particle Population Measurements
* Nov 7-22 UVCS Streamer Study
* Nov 23-24 UVCS Observations of Del Sco
* Oct 31-Nov 14 CDS Off-limb Active Region Movie,
POC: Eoghan O'Shea (firstname.lastname@example.org)
CDS will also participate in the UVCS streamer study, on selected
dates 7-20 November. Dates TBD by CDS planners in consultation with
See their request diary for details:
SUMER will be observing again in the spring. A request for eclipse
observations (March 29) has been received.
The outcome of the Senior Review of all Sun-Solar System missions this
fall will determine the level of support (or no support) for each
mission in the future. TRACE operations will continue through at least
the rest of the year.
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.
The TRACE eclipse season is expected to end February 17. TRACE will
change to load plans only 3 days a week starting next week (week 44).
* Next SPWG:
F Nov 18 SPWG after Daily/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
* 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.