SOHO SPWG Minutes
FRIDAY 21 FEBRUARY 1997, SOHO EAF, GSFC
Chair: Piet Martens (SOC)
Minutes: Laura Allen (SOC), Robert Doney (SOC)
Present: Philippe Lemaire (SUMER), John Kohl (UVCS), Angela Ciaravella (UVCS),
John Raymond (UVCS), Phil Scherrer (MDI), Rock Bush (MDI),
Julia Saba (MDI), Craig DeForest (MDI), Andrzej Fludra(CDS),
Reiner Schwenn (LASCO), Clarence Korendyke (LASCO),
Jean-Pierre DelaBoudiniere (EIT), Jef Newmark (EIT),
Vicente Domingo (ESA Project Scientist), Art Poland
(NASA Project Scientist), Bernhard Fleck (ESA)
1. Review of action items
97_1.1: On SOC's to append appropriate JOP version to record of
each executed JOP in campaign catalog. Implemented
97_1.2: On ESA SOC to investigate whether previous JOP versions
-- if run -- can be restored. Can be done, requires searching
email files of Piet Martens and Bernhard Fleck. To be
carried out when time available.
NEW ACTION ITEM:
97_2.1 Working group to be formed for the SOHO archive, in
particular the issue of linking the campaign database to
the experiment catalogs:
a congnoscent from each instrument team, SOC, Luis, Macwan, Liyun.
CDS -- Bill Thompson
SUMER -- TBD
UVCS -- TBD
EIT -- Joe Gurman, Jeff Newmark
LASCO -- TBC, Russ Howard
MDI -- Phil Scherrer or Rock Bush
Luis Sanchez will be in charge and call meetings.
97_2.2 Action on EIT to provide SOC information concerning desired
EIT offpointing in the next 6 months.
Summary data: Meeting agrees it is cheaper to forego cdrom
distribution, and use Web server instead. No action required -- US Project
Scientist can cancel cdrom distribution.
Campaign Catalog: Urgent request to JOP leaders and other coordinators
to complete their campaign entries in the campaign database. Web access via:
2. Boundary conditions for the coming month
- MDI Continuous: Starts March 12 at 12:00 UT to March 16 at 02:00 UT
- March 18-21: Reaction Wheel 4 Maintenance, Momentum Management(s), Roll
There has been some changes to the March roll maneuver. The Flight Dynamics
Facility did some computing and the initial request by MDI to have stops
at 22.5 degree increments was not feasible because at some stops the
reaction wheel speeds would violate various minimum and maximum speed
constraints. To make a long story short, the roll maneuver has been modified.
Here is the new plan:
o Perform one roll all the way around in increments of 30 degrees
with a 25 minute dwell at each 30 degree delta stop.
o Then roll from nominal to +270, +180, then +90 (dwell for an
estimated 2 hours for SWAN).. then back to nominal position
EIT would like to do an offpoint in the next 6 months, perhaps in conjunction
with the next time we roll. Action on EIT to provide information to the SOC
as soon as possible as to the duration and extent of the off-point, dwell times,
etc. SOC pointed out that anyone planning or wanting to plan activities such as
an off-point, roll, or special spacecraft activity such as these... should
contact the SOC with information as soon as possible.
3. Preview of future months
(See SOHO Calendar for more recent updates)
* Target of Opportunity April 3 - May 1, JOP059, Structure and Variability of Loops,
CDS/EIT/MDI/SUMER/Yohkoh-SXT, EOF: Robert Walsh and Jack Ireland
* April 11: Possible Momentum Management
* April 13 - July 13: MDI Continuous. MDI focus on helioseismology;
MDI will provide full disk magnetogram every 96 minutes, but no
other campaign support
* April 19: Woods/Hassler sounding rocket, launch ~18:00 UT
* 29-30 April: Filament Observations, Nobeyama/Siberian Solar Obs./CDS/SUMER
Coordinator: Ed Schmahl
* 28 April - 18 May: UVCS CME Search with LASCO Flag, Daily 15:00 - 20:00 UT
* May/June: JOP049 with SUMER near polar crown
* 2 June - 15 June: UVCS CME Search with LASCO Flag, Daily 15:00 - 20:00 UT
* mid-June: EIT calibration rocket, from White Sands
* May 26: Ulysses-Sun-Earth at 90 Degrees, Joint CME Observations, 2 week span
* 27 May - 5 June: JOP012 and 017, Pic-du-Midi/SUMER/CDS/EIT, 7:00-11:00 UT
* SERTS Rocket Flight, July 29
4. Priorities for the coming month
a) Individual instrument plans
SUMER: Equatorial coronal holes.
CDS: 17 - 31 March, request from P. Judge to run JOP46 and
JOP20 outflows in network and internetwork, campaign of diagnostics of
loops on limb 5 - 10 March (CDS/SUMER/Sac Peak and Yohkoh) abundances
from 8-14 of March, April request to run from JOP059.
EIT: Up until roll maneuver, will be taking full disk 304 image
every 20 minutes in addition to the normal four sets of full-resolution,
full-field observations. Plans are not firm for the last week in March
UVCS: double lobe radio source and can compare Faraday rotation.
7 solar radii, PA of 110 with VLA (28 March)
The following is the revised list of UVCS Lead Observers for March through
June 1997 (in reverse order).
23 Jun - 29 Jun Luca Zangrilli Latitude dependance of solar wind parameters
16 Jun - 22 Jun TBD TBD
09 Jun - 15 Jun TBD Zeta Tau, 121 Tau, CME Watch
02 Jun - 08 Jun Giovanni Peres CME Watch and CME Onset
26 May - 01 Jun Giannina Poletto Coordinated observations with Ulysses
19 May - 25 May Steve Suess Coordinated observations with Ulysses
12 May - 18 May Daniele Spadaro Global dynamics of the extended
corona and a CME Watch with LASCO
05 May - 11 May TBD Global dynamics of the extended
corona and a CME Watch with LASCO
28 Apr - 04 May Ester Antonucci Global dynamics of the extended
corona and a CME Watch with LASCO
21 Apr - 27 Apr TBD TBD
14 Apr - 20 Apr TBD TBD
07 Apr - 13 Apr TBD TBD
31 Mar - 06 Apr Carlo Benna Polar Plume Studies and CME
Watch with LASCO
24 Mar - 30 Mar Roger Kopp Velocity structure above streamer cusp
in OVI, and coronal waves/Faraday rotation
experiment with VLA (28 March).
17 Mar - 23 Mar John Kohl Mid Lattitude Streamers, instrument
thermal model tests during S/C roll
10 Mar - 16 Mar Leonard Strachan Outflow velocities in Streamers, and
instrument flat field calibration.
03 Mar - 09 Mar Angela Ciaravella O VI Outflow velocities in coronal holes,
and CME Watch with LASCO
24 Feb - 02 Mar Marco Romoli Visble Light Channel characterization,
Streamer Studies and CME Watch with LASCO
MDI: Continuous in March, roll maneuver preparation. Three day
continuous run prior to roll maneuver. Also need to do leg motion and
flat field activity in last week of March. First two weeks in March open
for collaboration, would like high-resolution QS studies
LASCO: With improved telemetry, things going much smoother.
Planning to improve telemetry system with wavelet compression algorithm
(based on addition/subtraction): now in the optimization stage.
b) Intercalibration activities
Run Intercal 001 in the second week in March.
c) Joint observing plans
JOP022 (P. Lemaire) during MDI Continuous
5. JOPs status
- JOP-leaders' reports
Most people have not responded to requests for updating JOP information.
People pointed out that perhaps no documents exist which provide directions
or requests for the type of information to go into the database. Please refer
to the following web pages:
Urgent request to JOP leaders and other coordinators to complete their campaign
entries in the campiagn database.
Campaign #'s 1 and 2 have been freed up for general use. ECS software has been upgraded
to accept multiple campaign numbers for the same activity (in case the same observations
of one experiment support multiple joint investigations). Campaign # = 0 means experiment
does not participate, Campaign # = 1 indicates synoptic program.
6. New JOPs
- JOP059 Coronal Loop Structure and Variability, Robert Walsh, Jack Ireland
Needs to be submitted as SOI proposal.
o Rock Bush presented information about
- the thermal reconfiguration of the previous week. We refer to a memo
sent by Jean-Philippe Olive's last week, which contains the same data.
- Prediction for large solar cycle 23, peak in early 2000.
Severe geomagnetic storms.
o Vicente Domingo pointed out that the ESA SPC has allocated funds for
a mission extension until March 31, 2003. This implies for the national
delegations a commitment to support the instrument teams.
Adjourn: 12:00 pm