OPERATIONS
Science Operations
FINAL MINUTES FOR SOHO 24 Aug 2007 SPWG MEETING
1. Boundary conditions
a) Orbit, attitude and manoeuvres
- SOHO is in upside down roll (180 deg) position
- manoeuvres
Aug 30 stationkeeping and momentum management
Aug 31 roll
Nov 20 roll, stationkeeping and momentum management
(timing TBC)
b) Communications with the spacecraft
Graphical DSN schedule: http://soho.nascom.nasa.gov/soc/dsn/
* Aug 11-Sep 9 26 m keyhole
* Aug 19-Sep 2 34 m keyhole
* Nov 15-Dec 2 26 m keyhole
* Nov 19-Nov 28 34 m keyhole
* Feb 4-Mar 2 26 m keyhole
* Feb 11-24 34 m keyhole
- The need and approach to reduce FOT manpower requirements needed for
complex operations during the keyhole remains in effect until further
notice.
All available keyhole information is at
http://soho.nascom.nasa.gov/soc/keyholes.html
c) KNOWN submode dependent activities/submode changes:
* TOO JOP153/MMOP003 Future Major Flare Watch (SM5 if SUMER
observes target, SM6 otherwise)
* Oct 24-29 SUMER campaign preparations (SM5, timing TBC)
* Oct 30 EUNIS Sounding Rocket Launch, 18:00 UT (SM5, SUMER
supports)
* Nov 2-16 Polar Plume and Active Region Morphology Studies,
SUMER/CDS/MDI/UVCS/EIT/VTT/HINODE/TRACE/STEREO-EUVI (SM5)
* Nov 8,14 TBD EIT shutterless #29 (timing TBC) - dates will change
- 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 operations.
d) Instrument maintenance activities
EIT bakeout periods will be during keyholes. Dates and times are defined
when the DSN schedules become available.
During the Aug 2007 keyhole EIT will bakeout Aug 26-Sep 1.
e) Others
Hinode eclipse season 7 May - 10 Aug.
TRACE winter eclipse season is 13 Sep 2007 - 13 Mar 2008
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. 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.
* Aug 3-31 JOP189 Microflares and Network Dynamics (#7240),
CDS/EIT/MDI/TRACE/Hinode-EIS/Hinode-SOT/Hinode-XRT/
RHESSI/DOT/KSO, POC: Jan Rybak, Peter Gomory,
Local POC: Tero Siili, Alex Young
MDI supports JOP189 when we have high rate data.
* MDI 60 Day continuous contact has been changed to Dec 3-Feb 3
* Oct 21-Nov 16 JOP190/HOP027 Temperature, Density and 3-D Structure of
AR Loops, CDS/SUMER/MDI/Hinode-EIS/Hinode-SOT/
Hinode-XRT (TBD)/ TRACE (TBD)/STEREO/VTT/Huairou,
POC: Davina Innes
Note: this JOP run is associated with the SUMER campaign beginning on Nov
2. Due to ground-based observatory supports the run begins already on
Oct 21.
CDS will support.
Since the 60-day continuous contact is moved, MDI can provide either
full-disk or high-resolution mode observations. MDI can provide
observations to all of the requested JOPs if we have high rate data and
if the targets for each do not conflict (ie, one JOP wants
high-resolution and another wants full-disk or some other pointing in
high-resolution mode). MDI will not switch observing modes on timescales
less than 24 h.
MDI received a request for observations for a joint Hinode/MDI
high-resolution campaign. However, the dates are not firm, but were
tentatively planned for 01-15 Nov to avoid the SUMER/Hinode campaign.
Now that the dates have changed, this may cause a problem. MDI is
waiting to hear from Takashi Sekii on whether or not we will change the
dates.
* Oct 21-Nov 16 JOP191/HOP027 3-D Structure and Evolution of Filaments/
Prominences, CDS/SUMER/MDI/Hinode-EIS (TBD)/Hinode-SOT/
Hinode-XRT (TBD)/ TRACE (TBD)/STEREO/VTT/Huairou,
POC: Davina Innes
Note: this JOP run is associated with the SUMER campaign beginning on Nov
2. Due to ground-based observatory supports the run begins already on
Oct 21.
CDS will support.
Since the 60 Day CC is moved, MDI can provide either FD or HR mode
observations. See also response to JOP190 above.
* Oct 21-Nov 16 JOP192/HOP027 Chromospheric Heating - Signatures of
Waves and Reconnection, CDS/SUMER/MDI/Hinode-EIS (TBD)/
Hinode-SOT/Hinode-XRT (TBD)/TRACE (TBD)/STEREO
POC: Davina Innes
Note: this JOP run is associated with the SUMER campaign beginning on Nov
2. Due to ground-based observatory supports the run begins already on
Oct 21.
CDS will support.
Since the 60 Day CC is moved, MDI can provide either FD or HR mode
observations. See also response to JOP190 above.
* Oct 24-29 SUMER campaign preparations (timing TBC)
* Oct 30 EUNIS Sounding Rocket Launch, 18:00 UT,
CDS/MDI/SUMER/EIT (all TBC), POC: Jeff Brosius,
Douglas Rabin, Andrew Thomas
CDS will support, need more details.
Jeff Brosius had inquired about the possibility of MDI being in high-rate
during the flight, which would require a backup DSN station. Backup DSN
coverage request has been submitted to the scheduler, but availability
information is not yet available. That time frame is, however,
contentious due to Phoenix, Dawn and Selene. If a backup station turns
out not to be available, we need to find out if SOHO will need to be in
record and if that will be OK with the EUNIS people (in that case MDI
will not get high rate data other than 96 minute Synoptic Magnetograms).
From D. Rabin: Key timing goals are coincidence with Hinode observations
and proximity (slighly before) local noon. The launch time is flexible
approximately within 1700-2000 UTC to accommodate DSN availability. More
detailed information on the launch time is forthcoming. Flight duration
is approx. 10 min. Launch schedule solidifies in early October, but the
launch may be delayed on about a week's notice. A likely backup launch
date would be 2-3 days after the baseline date.
* Oct 30-Nov 5 Polar Plumes, UVCS/SUMER/CDS/Hinode. POC: Giulio Del Zanna
A Hinode HOP (entitled "Multi-wavelength observation of coronal hole
plumes at solar minimum") has been proposed by Giulio Del Zanna asking an
observing period 30 Oct - 4 Nov.
MDI hasn't gotten a request for this. Maybe they don't need MDI support?
Is this part of the other polar plume and AR study that will happen 2-16
Nov?
The POC has been e-mailed to request clarification on the dates and the
SOHO/TRACE supports desired.
* Nov 2-16 Polar Plume and Active Region Morphology Studies,
SUMER/CDS/MDI/UVCS/EIT/VTT/HINODE/TRACE/STEREO-EUVI
Note that these dates have changed. JOP leaders are being contacted
to see what they will change their dates to be.
Submode change and SUMER door opening will be on Oct 26 or Oct 29, TBD.
CDS will join the campaign - please add CDS Planner e-mail address to the
mailing list. All Hinode and SUMER users are invited to submit requests
for complementary CDS observations. Send requests to
A.Fludra (at) rl.ac.uk and P.R.Young (at) rl.ac.uk.
There are several JOPs associated with this campaign, some of which begin
already before this time frame due to ground-based observatory
supports. These are listed separately on the calendar (see above and
below) and will have separate campaign numbers when the time gets closer.
Werner Curdt writes that observers are requested to contact all
instrument teams involved and to timely submit JOP/HOP descriptions with
all the observational details approved. The responsibility for the
proposed studies rests with the observers. Note, that TRACE will be in
eclipse at that time, and EUV observations will be constrained.
Several teams requested a POC for this entire time instead of individual
JOP leaders.
POC in ISAS: Enrico Landi (TBC)
POC in MPS: Davina Innes
SUMER planner in GSFC: Udo Schuehle
MDI apparently has not gotten a formal request for this. See above
comment about a possible collaboration between MDI and Hinode 1-15 Nov
that may now conflict with the SUMER/Hinode studies including this Polar
Plume Study.
The TRACE team was not informed of this change in dates for the SUMER
campaign and we have not heard any details about what will be run. I have
changed the dates on our calendar, but it is still not clear what is
running when. Also TRACE will likely decide on the level of support on a
day to day basis. Also please be advised that we will be further into our
eclipse season.
* Nov 2-16 JOP193/HOP031 Coronal Holes Boundaries Evolution, CDS/SUMER/
MDI/Hinode-EIS/Hinode-SOT/Hinode-XRT/TRACE/STEREO/VTT,
POC: Maria Madjarska
CDS will support.
Since the 60 Day CC is moved, MDI can provide either FD or HR mode
observations. See also response to JOP190 above.
Dates of this JOP were specified on Nov 23. That information has been
e-mailed to instrument planners.
TRACE had this running from 22 Oct - 2 Nov with specifics to be
defined. Again this was with the original SUMER campaign timeframe.
* Nov 6-17 Characterization of Fast and Slow Solar Wind Source
Regions, SUMER/UVCS/Hinode-EIS, POC: Enrico Landi,
Mari Paz Miralles
A Hinode HOP has been proposed by Mari-Paz Miralles and Enrico Landi for
an observation period Nov 6-17.
The POC has been e-mailed to request clarification on the dates and the
SOHO/TRACE supports desired.
* Nov TBD HOP032 Magnetic Structure of Macrospicules, SUMER,
POC: Gerry Doyle
The POC has been e-mailed to request clarification on the dates and the
SOHO/TRACE supports desired.
* Nov TBD HOP003/Velocity Field in a Coronal Hole HOP003 Study #32,
SUMER, POC: Suguru Kamio
Re-run.
The POC has been e-mailed to request clarification on the dates and the
SOHO/TRACE supports desired.
* Nov 8, 14 TBD EIT shutterless #29 - dates will change
* Dec 2--->2008 Exceptional Ulysses Quadrature (ends May 28, 2008)
* Dec 3-Feb 3 MDI 60-day Continuous Contact
The default observing campaign will be Full Disk Magnetograms and
Dopplergrams (p30vr_fd_m1 - 1100). We will not switch to high-rate
during this time.
* Dec 17-23 Ulysses-SOHO Quadrature Observations
POC: Giannina Poletto
b) Intercalibration activities
Last Intercal 1: 10 August 2007
* Sep 10-14 ICAL01 (#7113), CDS/EIT, TBC
Possible EIS collaboration. EIS and Stereo have been added to the
Campaign #7113 description.
Details and confirmation will be determined by the planners.
EIT: ICALs are OK except (usually) during the weeks of shutterless.
c) Individual instrument plans
MDI:
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)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 back in Focus 5 for best focus for FD observing and will stay
there at least until March 2008.
UVCS:
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:
http://www.cfa.harvard.edu/uvcs/observations/obst.html.
CDS:
For details see http://solar.bnsc.rl.ac.uk/scientificops/request.shtml.
LASCO/EIT:
EIT: 195 A CME watch plus synoptics at 6-hour cadence, as usual. Full-res
CME watch whenever we're in submode 6.
SUMER:
Nov 2-16 Polar plume and active region morphology studies,
SUMER/CDS/MDI/UVCS/EIT/VTT/HINODE (TBC)/TRACE/
STEREO-EUVI
See details in Section 2a for list of JOPs/HOPs to be run at this time.
There are tentative plans for another SUMER campaign from April 21 to
May 4, 2008.
TRACE:
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.
During our fall eclipse season that starts in October, we will accept
observing requests through Novemeber 1st. Any observations that are to
take place after November 1st will be evaluated in October once eclipse
season has started and then we will decide what makes sense for us
to support.
During the period of deepest eclipses (Nov. 16 - Feb. 15) of its winter
eclipse season, TRACE will be operated by three command loads per week
(Mondays, Wednesdays, and Fridays). TRACE will accept a limited number of
JOP requests, giving preference to those that involve multiple
observatories (in space and/or on the ground), provided that their
targets can be specified on a schedule that is compatible with the
reduced frequency in instrument command loads during the winter eclipse
season).
3. Any other business
* VC3 and non-ranging handovers From MDI/Gregory: for automation (actually for ops in general), I would like to suggest that we do away with VC3 (except for non-ranging) handovers. I know that during long overnight contacts, the FOT traditionally go to VC3 while still giving periodic VC2 around ALT times (refer to the "Standard Ops Policy" OCD submitted 17 Oct 2005 for details). Status: the required modifications to automation software may be extensive at this point. Feasibility as well as resource expenditure vs. benefits are being assessed. Decisions are not expected until early Sep 2007 at the earliest. * .REL files' creation interval To aid getting prompt relativistic electron information from COSTEP with which to predict solar energetic particle (SEP) events, we are wondering if all instrument teams can support changing the creation interval for .REL files to 1 minute instead of 30 minutes? This would not affect real-time telemetry streams, only the .REL files that are currently ftp'd to you every 30 minutes. Status: based on e-mail inquiry responses, this approach seems to be too much effort to too many groups. COSTEP will investigate using their realtime data stream instead. EIT team has agreed to provide assistance in implementation and testing. * Next SPWG: Friday 28 September after daily & weekly meetings The rest are FYI items: * If anyone has projects that require high rate (i.e. 1 minute cadence and anything other than 96 minute synoptic Magnetograms) 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 http://www.isas.jaxa.jp/home/solar/hinode_op/ * STEREO operational and planning information can be found via http://stereo-ssc.nascom.nasa.gov/, more specifically from http://stereo-ssc.nascom.nasa.gov/plans.shtml. * 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. * To provide more unambiguous identification, individual instruments on board spacecraft other than SOHO will be as of this SPWG be referred to with notation SPACECRAFT-INSTRUMENT, for example Hinode-EIS. * The Project Scientist has decided that submission of the Inputs to the Activity Plan (IAPs) will change to be voluntary. The PS has informed the SOHO community of the change on 22 Feb by e-mail. * The FOT will begin testing the automation procedures on the week beginning 19 March. The passes will continue to be manned until after an operational readiness review and both agencies agree to a change in the mission management plan, both of which won't be for at least a couple of months, after we have significant experience with the automation. * New JOP vs. modified existing JOP rules-of-thumb: New JOP, if/when scientifically or qualitatively new type of a coordination is set up; modified JOP, when the investigation (the foci or targets thereof) remains essentially the same but new instruments/spacecraft/GBOs/etc are brought to bear.
