SOHO SPWG Minutes
SPWG FINAL MINUTES
Friday 26 August 2005
1. Boundary conditions
- SOHO is upside down until the next manoeuvre, which is scheduled for
- The September 2005 keyhole plans are at
Expect losses during gaps, except for VIRGO, GOLF, MDI, CELIAS and
LASCO, within these time periods:
2005/09/07 12:40 - 2005/09/08 12:45
2005/09/14 05:35 - 2005/09/16 16:00
2005/09/19 14:00 - 2005/09/23 03:20
- Scheduling windows for keyhole periods through 2005 are listed on
the SOHO calendar. For estimated keyhole dates through 2008 see
- 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
MDI can only support requested observations with full disk, 1 minute
cadence Magnetograms and Dopplergrams through Sept 30, 2005. Due to
the 60 day Continuous Contact (June 25-August 28), MDI will be
unable to provide any high resolution observations during that time.
Due to the June 2005 and September 2005 Keyholes, MDI will be unable
to provide most high RATE observations for any requested
observations and the default program during the Keyholes will be
either full disk, 1 minute cadence Magnetograms/Dopplergrams or full
disk, 1 minute cadence Magnetograms/Continuum Images. Send email to
email@example.com to request observations. Each
request will be evaluated on an individual basis by the MDI/SOI
- 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
* Sep 2 Submode change to Submode 5, 20UT
* Aug 31-Sep 28 26m Keyhole (Sep 6-22 34m Keyhole), SM5
* Sep 23 Submode change to Submode 6, time TBD
* Oct 5 Submode change to Submode 5, ~15 UT, TBC
* Oct 6-17 Fine Scale Structures, SUMER/MDI(TBC)/CDS(TBC)/THEMIS/DOT, SM5
* Oct 18 Submode change to Submode 6, ~15 UT, TBC
* Oct 19,26 EIT Shutterless #21, SM6, TBC
* Nov 15 EUNIS launch, SM6
* Dec 2-21 26m Keyhole (Dec 6-17 34m Keyhole), SM5 or SM6(end)
* 06/05/01-06/06/15 SUMER Campaign
* 06/11/01-06/12/15 SUMER Campaign
- EIT Bakeout/Other
* Sep 2-23 EIT Bakeout
- 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)
* 2005/08/02-- JOP153/MMOP003 Future Major Flare Watch (#8003)
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
* Jun 25-Aug 28 MDI 60 Day Continuous Contact
MDI is doing full disk magnetograms and Dopplergrams.
* Aug 30-Sep 29 26m Keyhole (Sep 6-22 34m Keyhole)
* Sep 1-10 Wave Propagation from Photosphere to Corona, MDI/SST/DOT/TRACE,
POC: Bart DePontieu (firstname.lastname@example.org)
MDI will try to accommodate observations for this study, DSN
permitting. We are also supporting a request for Full Disk
observations with VTT from Aug 26 - Sept 2 (it's a Helioseismology
study called "Meridional Motions on and in the Sun"). However, Sept
7, JOP178 takes priority, assuming we have high rate data during
their observing times.
* Sep 7-21 JOP178 Filament and its Environment, MDI/CDS/TRACE/GBOs,
POC: Thierry Roudier (email@example.com)
See http://bass2000.bagn.obs-mip.fr/jop178/JOP178_2005.html for details.
CDS can support with GIS studies if NIS tests continue.
EIT cannot support this due to bakeout.
MDI will try to collaborate as much as DSN allows (during 34m keyhole) with
HR or FD Magnetograms.
TRACE will join on September 11 (when Bart DePontieu's study is
* Sep 8 Spacecraft Maneuvers and 180 Degree Roll
* Sep 22-28 Filament Observations, CDS/EIT/THEMIS,
POC: Guillaume.Pouget@ias.u-psud.fr, TBC
CDS supports as the keyhole schedule allows.
EIT will not be able to support until September 24 due to bakeout.
EIT participation beyond CME watch is dependent on contact and
ground observing schedules, since it could involve sector wheel
motions. Should be able to support on September 24 and 28, if pass
schedule is unchanged.
* Sep 23-Oct 17 Magnetic Elements and Waves in the Chromosphere,
MDI/TRACE/SST, POC: Mats.Carlsson@astro.uio.no
MDI: This begins during the 26m Keyhole and overlaps with a 5-day
continuous contact period, Oct 12-16. HR Mag/Doppler program likely for the
continuous contact period if target in the high res FOV.
* Oct 3 Annular Solar Eclipse, 08:41-12:22 UT
* Oct 6-17 Fine Scale Structures,
POC: Georgia Tsiropoula (firstname.lastname@example.org)
JOP description is being finalized.
CDS studies have been made by Peter Young, the SUMER studies are
being worked on to coincide with CDS.
MDI: We have a La Palma coordination from Sept 23 - Oct 17 and an
MDI 5 Day CC from Oct 12-16. We can only support Fine Scale
Structures with what we are providing to La Palma (which will likely
be what we do for CC). I believe both La Palma and Fine Scale
Structures has requested HR Mag/Doppler/Filt, so if they can both
pick targets close together, MDI should be able to provide support
Submode changes for this will be on October 5 and 18.
* Oct 12-16 MDI Continuous Contact
MDI: High res Mag/Doppler or 3-variable high res program likely
since there has been interest expressed by several collaborators,
provided the targets are in the MDI high res FOV.
* Oct 17-21 JOP179 Energy Propagation in XBPs, CDS/EIT/MDI/Hida, 21-06 UT,
POC: Tetsuya Watanabe (WATANABE@uvlab.mtk.nao.ac.jp)
NOTE: Dates shifted 1 day earlier after meeting.
CDS will support, but needs more details. CDS support for JOP179 and
JOP182 can be run at different times.
MDI: We have a conflict with JOP182 now. JOP182 has asked for Full
HR FOV observations from MDI for Oct 20-24. MDI will be happy to
support JOP179 from Oct 18-20, but will have to switch to HR Oct 20
if requested to do so by JOP182. Unfortunately, JOP179 was planned
a year ago and JOP182 cannot move their timing since TRACE will be
approaching eclipse season, so MDI will have to split JOP179's time
(unless, of course, they both want FD or HR at the same time)!
EIT support is 195 Å CME watch (submode 6)
* Oct 18-31 JOP171 Solar Network Variability and Dynamics,
CDS/SST/DOT, POC: Peter Gomory (email@example.com)
* Oct 18-31 Spectroscopy and Imaging Tomography of Solar Fibrils,
EIT/MDI/SST/DOT, POC: Jan Rybak (firstname.lastname@example.org), TBC
NOTE: Jan Rybak's program added after meeting.
EIT 195 Å CME watch should meet requests for both JOPs 179 and 171,
except during shutterless campaign periods, as soon as we're in
MDI doesn't seem to have received a request for this. However, MDI
will be supporting JOP179 and JOP182 Oct 18-24. JOP179 and JOP171
both want HR extracted observations, so it's possible MDI could
accommodate both Oct 18-20. JOP182 will then start Oct 20 and has
completely different observational requests until Oct 24. MDI can
probably support JOP171 after Oct24, but we will likely also be
running some MDI specific Line Profile campaigns that will take
priority over JOP171.
TRACE has also not received any request - and it would be in
conflict with JOP182 October 20-24, below.
* Oct 19, 26 EIT Shutterless #21, 17:00-19:40 UT
The submode change on October 18 to submode 6 is needed for this.
* Oct 20-24 JOP182 Structure and Dynamics of Coronal XRBPs, CDS/MDI/TRACE,
Daniel Brown (email@example.com)
We have requested extra DSN coverage for this period. The current
schedule can be found at http://soho.nascom.nasa.gov/soc/dsn/42.html
(and the following week). October 24 has large gaps, the other days
look fairly good.
MDI: See above comment to JOP179. JOP182 wants HR Full FOV
Mag/Doppler from MDI and JOP179 wants FD Mag/Doppler from MDI. I
believe MDI may have to cut the JOP179 support short. Details can
be worked out closer to the observing times.
* Nov 9-13 MDI Continuous Contact, TBC
Default plan is FD Mag/Doppler.
* Nov 15 Sounding Rocket Launch, MOSES/CDS/EIT/MDI/TRACE, POC: Charles
Kankelborg (firstname.lastname@example.org), TBC
* Nov 15 Sounding Rocket Launch, EUNIS/EIT/CDS/TRACE/VLA,
POC: Jeffrey.W.Brosius.email@example.com, TBC
* Nov 16 Backup Launch Day for MOSES and EUNIS
We seem to have D27 for both days - we have asked whether a backup
station is available for 15-21 UT. High rate data for MDI has been
requested, so we will not be in record, at least for some part of
the applicable time interval. The MOSES & EUNIS launches will take
place about 30 minutes apart (or more).
Exact EIT details TBD.
b) Intercalibration activities
Last Intercal 1: August 4, August 25 (both GIS only)
* Week 39/40 ICAL01 (#7113), CDS/EIT
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 firstname.lastname@example.org. 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 turned on its LyA detector earlier in August. Recommissioning
and calibrations have been performed to characterize the detector
and associated mechanisms. The detector is performing well. We have
been making observations using the LyA detector for measurements of
suprathermal seed particle populations in the extended corona. Good
data have been obtained and are being analyzed. We plan to use the
LyA detector for special observations in the future when
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):
* Aug 30-Sep 05 UVCS Observations of polar coronal holes
UVCS will be in a safe configuration for the keyhole during
See their request diary for details:
EIT bakeout September 2-23. Improved LASCO C2/C3 synoptic during
JOP 175 should remain a priority when we're not supporting JOPs that
require 195 Å and a suitable target is available. We hope TRACE will
be able to make this a priority also. Note that an AR is not
required (indeed, not wanted) for this JOP.
SOC note from meeting: It would probably increase the chances of
success if, during periods when TRACE is not fully committed to
other collaborations, someone (JOP leader or EIT planner?) could be
on the lookout for a suitable target. TRACE is pretty tied up until
their eclipse season. It will be possible to do it during eclipse
season, but beware of reduced number of loads per week.
The SUMER campaign will be reduced to October 6 to 18 with the
A-Detector (if it is still usable). During this period SUMER will
support the JOP "Fine Scale Structures" and JOP161 if that is
rescheduled. In addition, there will be high cadence maps of quiet
Sun in Lyman-Alpha and velocity maps of Ne VIII and O IV.
The TRACE Mission will not be terminated on 1 October. NASA has
decided to have a Senior Review of all Sun-Solar System missions this
fall, the outcome of which will determine the level of support (or no
support) for each mission in the future. TRACE operations will
therefore continue through at least the rest of the year, especially
through the summer observing season in the northern hemisphere.
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.
* Next SPWG:
F Sep 30 SPWG Meeting
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.