OPERATIONS
Science Operations
FINAL MINUTES FOR SOHO 28 Mar 2008 SPWG MEETING
1. Boundary conditions
a) Orbit, attitude and manoeuvres
- SOHO is in right side up roll position (0 deg).
- manoeuvres
To the degree possible, manoeuvres take place during the last days of
34-m keyholes. Currently proposed or set manoeuvre dates are:
May 19 (TBC) station-keeping, momentum management, roll
Aug 19 (TBC) station-keeping, momentum management
Aug 22 (TBC) roll
b) Communications with the spacecraft
Graphical DSN schedule: http://soho.nascom.nasa.gov/soc/dsn/
Keyhole dates for the next 6 months:
* May 7-25 26 m keyhole
* May 11-21 34 m keyhole
* Aug 01-30 26m Keyhole
* Aug 08-22 34m 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. Direct link to the list of
estimated dates for future keyholes is
http://sohowww.nascom.nasa.gov/soc/keyholes.txt.
- DSN D45 and D65 (34-m) antennae status
D45 and D65 have been and currently remain downlink/telemetry-only, but
are in the process of being upgraded with uplink/commanding capabilities.
The estimated time for the transmitters to change to operational status
is late April or early May.
c) KNOWN submode (SM) dependent activities/submode changes:
* TOO JOP153/MMOP003 Future Major Flare Watch (SM5 if SUMER
observes target, SM6 otherwise)
* Apr 3-16 SUMER support for the WHI (SM5)
* Apr 23,29 EIT Shutterless #31 (SM6)
* Jun 20-30 SUMER observing TBC (SM5)
* Jul 23,30 EIT Shutterless #32 (SM6)
* Nov SUMER campaign TBD (SM5)
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.
For details of the SUMER observations Apr 3-16, see the WHI entry in
section 2a.
The Jun 20-30 SUMER observations are in support of JOP 213 (see also
section 2a) and in coordination with UVCS.
d) Instrument maintenance activities
EIT bakeout periods will be during keyholes. Dates and times are defined
when the DSN schedules become available. EIT will provide info as soon as
possible on bakeout dates.
e) Others
Daylight Saving/Summer Time starts in the European Union on 30 Mar 2008
at 1 UT. After the change
GSFC local = UT - 4 h
= Central Europe - 6 h
= UK - 5 h
= Japan - 13 h
TRACE summer eclipse season begins on 10 May 2008.
Unattended automated night passes for SOHO began October 6 2007.
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.
* Dec 2-May 28 Exceptional Ulysses Quadrature
Observations of the Ulysses spacecraft are expected to cease soon (from
weeks to few months) --- quite possibly before the end of the quadrature
period.
* Mar 3-May 4 MDI 60-day Continuous Contact
The default observing sequence will be 1 min cadence, full disk
Magnetograms and Dopplergrams along with our usual 96 min synoptic
Magnetograms and synoptic Continuum images when in high rate.
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.
* Mar 30 Daylight Saving/Summer Time starts in the European Union
at 1 UT
See also section 1e.
* Mar 20-Apr 16 Whole Heliosphere Interval (WHI) Campaign,
CDS/CELIAS/COSTEP/EIT/LASCO/MDI/SUMER/UVCS/TRACE/
Hinode-EIS/Hinode-SOT/Hinode-XRT/STEREO-SECCHI/
STEREO-PLASTIC,
POC: Sarah Gibson, TBD
This set of campaigns (associated with the International Heliospheric
Year - IHY) will be structured as multiple JOPs, but will be centrally
coordinated in the same fashion as the Aug 2007 run of JOP194.
The targetting calendar (with the most up-to-date information) can be
found at http://ihy2007.org/WHI/WHI_targets.shtml.
As a heads-up of what to expect: due to Hinode constraints, it is
probable that JOP focus time for overlapping with Hinode observations
will be 1100-1500 UT, rather than 1600-2000 UT as previously planned.
Targetting emails/calendar for each individual JOP will be the final
authority on times.
The tentative JOP titles and timings are:
Mar 20-26 JOP 201 Linking the Corona to the Solar Wind at Ulysses,
Campaign #: 7265,
EIT/LASCO/UVCS/Hinode-EIS/Hinode-SOT/STEREO-SECCHI/
TRACE/Global Muon Detector Monitor/EISCAT/HSO/IPS/Nancay/Ooty
POC: Giannina Poletto,
URL: http://web.hao.ucar.edu/~sgibson/WHI/WHI-HOLEULYSSES.html
NOTE: Observations of the Ulysses spacecraft are expected to cease
soon. The emphasis of JOP 201 may shift to polar plumes.
NOTE: JOP 201 is essentially the same as HOP 0064.
Objective 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.
The UVCS target for JOP 201 is polar plumes in the south coronal
hole. UVCS is supporting JOP 201 for the whole duration.
Mar 27- Apr 2 JOP 202 Origin of the Slow Solar Wind/Streamer Study,
Campaign #: 7266,
CDS/EIT/LASCO/UVCS/ACE/Geotail/Hinode-XRT/
STEREO-SECCHI/TRACE/Ulysses/EISCAT/MLSO/Nagoya/Nancay/
OOTY/SMEI
POC: Leonard Strachan
URL: http://web.hao.ucar.edu/~sgibson/WHI/WHI_Slow_Wind.html)
JOP 202 is primarily for off-limb streamer observations above closed
loops/filament cavities. When using the on-disk observing instruments, it
is part of SOHO Campaign 7266 for Activity in Filament Cavities.
UVCS will support JOP 202 for the whole duration.
Apr 3-9 JOP 206/203 Low-latitude Coronal Holes & Coronal Hole Boundary,
Campaign #: 7267,
UVCS/CELIAS/LASCO/SUMER/CEPAC-EPHIN/
ACE-SWICS/Hinode-EIS/Hinode-SOT/Hinode-XRT/
STEREO-PLASTIC/STEREO-SECCHI/STEREO-SEPT/TRACE/
Ooty/STELAB-IPS/Nancay/NSO-SOLIS/NSO-DST-IBIS
POC: Mari Paz Miralles and Craig DeForest,
URL: sohowww.nascom.nasa.gov/soc/JOPs/jop206.html
A low-latitude coronal hole coming around the East limb has been selected
as the target. Then JOP 206 (The Target of Opportunity 2; see below) will
supersede JOP 203.
UVCS will support JOP 206/203 during April 3 - 17.
Apr 10-16 JOP 204 Characterizing the energetics and dynamics of
the quiet Sun,
Campaign #: 7268,
CDS/EIT/MDI/SUMER/Hinode-EIS/Hinode-SOT/Hinode-XRT/
STEREO-SECCHI/TRACE/HSO-COMP/HSO-MOTH/NSO-IBIS/
NSO-SPINOR
POC: Scott McIntosh
URL: web.hao.ucar.edu/~sgibson/WHI/WHI-QS.html
Targets of Opportunity (ToO) JOPs are:
ToO-1
Mar 20-Apr 16 JOP 205 Active Regions,
Campaign #: 7269,
EIT/MDI/Hinode-EIS/Hinode-SOT/Hinode-XRT/RHESSI/
STEREO-SECCHI/TRACE/Nancay/SMEI
POC: Robert Leamon
URL: web.hao.ucar.edu/~sgibson/WHI/WHI-TOO_AR.html
ToO-2
Mar 29-30 JOP 206 Low-latitude Coronal Holes,
Campaign #: 7270,
UVCS/CELIAS/CEPAC-EPHIN/LASCO/SUMER/ACE-SWICS/Hinode-EIS/
Hinode-SOT/Hinode-XRT/STEREO-PLASTIC/STEREO-SECCHI/
STEREO-SEPT/TRACE/Ooty/STELAB-IPS/Nancay/NSO-SOLIS/
NSO-DST-IBIS
POC: Mari Paz Miralles,
URL: sohowww.nascom.nasa.gov/soc/JOPs/jop206.html
UVCS will support this JOP when the selected low-latitude coronal hole
target reaches the West limb during the 3 April - 17 April period.
ToO-3
Mar 20-Apr 16 JOP 194 Activity in filaments and filament channels,
Campaign #: 7271,
CDS/UVCS/EIT/LASCO/TRACE/Hinode-EIS/Hinode-XRT/STEREO/
Hinode-SOT/BBSO/ISOON/MLSO/SMEI/ProMag(TBD)/CoMP(TBD)/
HELIO(TBD)
POC: Therese Kucera, Sarah Gibson
URL: web.hao.ucar.edu/~sgibson/CIP21/topcampaign.html
UVCS will observe at 1.7 solar radii from Sun-center above the selected
filament cavity at the base of a streamer. UVCS will participate in this
JOP between 29 March and 2 April if a suitable target is chosen.
If a ToO JOP is run, the week's regularly scheduled JOP would also be
run, but for a reduced time.
UVCS will support.
TRACE has received a request to support.
MDI is supporting with Full Disk, 1 minute cadence Magnetograms/
Dopplergrams and 96 minute synoptic FD Magnetograms/Continuum Images.
CDS will participate. As requested, the relevant JOP descriptions have
been forwarded to the CDS team.
EIT supports for the WHI JOPs:
JOP201 Mar 20-26 195A CME Watch
JOP194 & 202 Mar 27-28, Mar 31-Apr 2 195A CME Watch and the addition of
FFFres 284A image once per hour at 12 minute mark betweek hours of
16:00-22:00 UT (this time block may shift to follow prime observation
times with Hinode as per Kucera/Gibson request).
JOP203 Apr 3-9 195A CME watch
JOP204 Apr 10-16 304A CME watch
JOP206 Mar 29, 30 195A CME watch
LASCO will participate with C2pB@ 6 h cadence with C3pB@ 12 h cadence
along with synoptics; JOP201, JOP202, and Ulysses; unless contacted for
additional support.
SUMER will be online from 3 to 16 April. Science operations will start on
5 April in support of JOPs 203/206 and JOP 204.
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
http://spd.aas.org/SolarNews/archive/news.html#section1. The WHI
coordinator has tasked the leaders of individual WHI campaigns
(JOPs/HOPs) to assess the effect of the Hinode situation on their
observation plans and revise the plans if needed.
* Apr 23,29 EIT Shutterless #31
Apr 23, 2008, runtime 15:00-17:50 UT
Apr 29, 2008, runtime 15:00-17:50 UT
* May 10-25 JOP 157 emerging flux in active region (BP) or in coronal
hole (jet),
CDS(TBD)/EIT(TBD)/MDI(TBD)/Hinode/TRACE/THEMIS-MSDP/MTR,
POC: Brigitte Schmieder
* May 10-25 JOP 178 Filament and its environment,
CDS(TBD)/EIT(TBD)/MDI(TBD)/Hinode/TRACE/THEMIS-MSDP/MTR,
POC: Sanjay Gosain
Target-of-opportunity JOP in conjunction with the JOP 157; primarily for
May 20-25.
* Jun 11-15 MDI Continuous Contact
MDI is willing to do high resolution observations during this CC period.
Specifically, doing another Helioseismology study with Hinode would be
ideal. Observing campaigns suggested for HR Helioseismology studies are
hr_ve_fe_me (620"x310" FOV) or hr_t2_ve_fe_me (420"x420" FOV) in
non-track mode. Those interested, please request specific observations
about 1 month ahead of time. Due to commanding constraints for MDI, we'd
like to plan our observations ASAP.
MDI still plans on reserving the June and July 5-day Continuous Contacts
for HR observations, but no specific requests for collaborations have
been received. The default plan for June will be high resolution, 1 min
cadence filtergrams, dopplergrams and magnetograms.
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.
* Jun 20-30 JOP 213 Chromospheric network structure and dynamics,
SUMER/Hinode-SOT/SST/TIP II/ZIMPOL II,
POC: Anna Pietarila
For details see the JOP 213 description at URL
http://sohowww.nascom.nasa.gov/soc/JOPs/jop213.txt.
SUMER will support. See also below "SUMER observing".
* Jun 20-30 SUMER observing
In addition to supporting JOP 213, SUMER may carry out coordinated
observations with UVCS.
The SUMER/Hinode campaign originally scheduled for Apr 2008 is postponed
until further notice. The campaign will be structured as multiple JOPs
in the same fashion as the 2006 SUMER campaigns have been.
The June 2008 SUMER observation period will be of limited scale and
scope, not a full-fledged campaign. Some of the JOPs outlined below may
also be tested during the June observation period, but running them "in
full" remains TBD.
Currently submitted JOP/HOP proposals are (timings remain TBD):
Timing TBD JOP 207 Eruptive and quiescent prominences Atlas with
SOHO and Hinode,
CDS/SUMER/Hinode-EIS/Hinode-SOT/Hinode-XRT,
POC: Susanna Parenti.
Timing TBD.
Timing TBD JOP 208 Relationship between movements of magnetic
features and mass outflow in funnels,
MDI/SUMER/Hinode-EIS/Hinode-SOT/Hinode-XRT/TRACE (all TBC),
POC: Hui Tian.
Timing TBD.
Timing TBD JOP 209 Coronal bright points in quiet Sun and coronal hole,
MDI/SUMER/Hinode-EIS/Hinode-SOT/Hinode-XRT/TRACE (all TBC),
POC: Hui Tian.
Timing TBD.
Timing TBD JOP 210 Checking the possible drives of solar wind origin
in the coronal hole,
SUMER/Hinode-EIS/Hinode-SOT/Hinode-XRT (all TBC),
POC: Hui Tian.
Timing TBD.
Timing TBD JOP 211 How does the solar wind originate from the
quiet-Sun region,
SUMER/Hinode-EIS/Hinode-SOT/Hinode-XRT (all TBC),
POC: Hui Tian.
Timing TBD.
Timing TBD JOP 212 Connection between UV explosive event and
magnetic cancellation,
SUMER/Hinode-EIS/Hinode-SOT/Hinode-XRT,
POC: Hui Tian.
Timing TBD.
MDI will support JOPs 208 and 209 to as well as it is able depending on
high rate telemetry availability.
TRACE had not been contacted for support requests for the original
campaign timing and asks to be contacted as soon as the new timing is
being narrowed down.
* Jul 9-13 MDI Continuous Contact
MDI is willing to do high resolution observations during this CC period.
Specifically, doing another Helioseismology study with Hinode would be
ideal. Observing campaigns suggested for HR Helioseismology studies are
hr_ve_fe_me (620"x310" FOV) or hr_t2_ve_fe_me (420"x420" FOV) in
non-track mode. Those interested, please request specific observations
about 1 month ahead of time. Due to commanding constraints for MDI, we'd
like to plan our observations ASAP.
MDI still plans on reserving the June and July 5-day Continuous Contacts
for HR observations, but no specific requests for collaborations have
been received. The default plan for June will be high resolution, 1 min
cadence filtergrams, dopplergrams and magnetograms.
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.
* Jul 23,30 EIT Shutterless #32
Times remain TBD.
* Sep 24-28 MDI Continuous Contact
The default observing sequence will be full disk, 1 min cadence
Magnetograms and Dopplergrams in addition to our 96 min synoptic
Magnetograms and Continuum images (when in high rate).
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.
* Oct 15-19 MDI Continuous Contact
The default observing sequence will be full disk, 1 min cadence
Magnetograms and Dopplergrams in addition to our 96 min synoptic
Magnetograms and Continuum images (when in high rate).
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.
* Nov TBD SUMER/Hinode campaign
b) Intercalibration activities
Last Intercal was: Mar 19
* Apr 14-26 ICAL01 (#7113), CDS/EIT/Hinode-EIS/STEREO
ICALs are normally performed monthly. Below is a SOC proposal for ICAL
weeks for the next six months.
* May 5-9 ICAL01 (#7113), CDS/EIT/Hinode-EIS/STEREO
* Jun 2-6 ICAL01 (#7113), CDS/EIT/Hinode-EIS/STEREO
* 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
CDS views Hinode-EIS participation as extremely important. STEREO-EUVI
observations might also be used, but ICALs need to be scheduled not to
coincide with STEREO manoeuvres or other interruptions in observations
(see http://stereo-ssc.nascom.nasa.gov/plans.shtml). EIS and Stereo have
been added to the Campaign #7113 description.
Dates, details and confirmation will be determined by the planners.
EIT: ICALs are OK except (usually) during the weeks of shutterless ---
whenever CDS prefers.
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 in Focus 5 for best focus for FD observing and will stay there at
least until May 2008.
UVCS:
UVCS is scheduled to enter Keyhole Safe configuration on 8 May and
Keyhole Recovery is targeted for 21 - 23 May TBC.
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. Hope never to change until the
Bogart mission.
LASCO continues the C2 pB program at 6 h cadence till Apr 2008.
POC: Angelos Vourlidas.
SUMER:
Next SUMER observation periods:
Apr 3-16
June 20-30
Nov (timing TBD)
See section 2a for details.
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.
TRACE will move back to loading 5 days a week as of the week starting
3 Mar 2008.
3. Any other business
* Next SPWG: Friday May 2 after daily & weekly meetings. MDI: Either date is OK UVCS: Either date is OK 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 http://spd.aas.org/SolarNews/archive/news.html#section1. * 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 http://sohowww.nascom.nasa.gov/operations/SPWG/spwg-20080118.html * 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 http://sohowww.nascom.nasa.gov/operations/SPWG/spwg-20080118.html * 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 http://sohowww.nascom.nasa.gov/operations/SPWG/spwg-20080118.html * 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 http://sohowww.nascom.nasa.gov/operations/SPWG/spwg-20080118.html * SOHO calendar email notifications: no change, see URL http://sohowww.nascom.nasa.gov/operations/SPWG/spwg-20080118.html
