SOHO SPWG Minutes - November 1996
Chair: Piet Martens (SOC)
Notes: Laura Allen (SOC) and Piet Martens
Harold Benefield (FOT), Bernhard Fleck (ESA), Helmut Schweitzer
(ESA), Sylvaine Turck-Chieze (GOLF), Jacques Charra (GOLF), Claus
Froehlich (VIRGO), Rock Bush (SOI/MDI), Richard Harrison (CDS),
Stein Vidar Haugan (CDS), Philippe Lemaire (SUMER), John Kohl
(UVCS), Jean-Pierre DeLaBoudiniere (EIT), Jeff Newmark (EIT),
Walter Schmidt (SWAN), Peter Bochsler (CELIAS), Jarmo Torsti (ERNE)
Action items: 11.1:
On LASCO to propose the earliest possible date for a Submode 2 and 3 test before/for the
1. Boundary conditions for the coming month
December 1 -- Tape recorder maintenance
December 16 - 18 -- MDI continuous contact
Rest of discussion focused on what instrument teams, the FOT,
and project scientist team were doing concerning staffing
over the Christmas holidays. The consensus was there should be
no daily meetings on Thanksgiving, Christmas, and New Years day.
AGU meeting is the week before the Christmas holidays
(Julia Saba and Craig DeForest will be away at the meeting).
There will be someone around but at somewhat reduced staffing
during the holidays. Proposes not to schedule any JOPs during
Christmas period -- accepted by absence of objections.
Close doors for 2 weeks; Udo will be in the area and on call.
Offering up their telemetry for that time. Suggest perhaps
could be in one submode one week (and CDS benefit) and
another submode the next week (and LASCO benefit).
- Dec 21 - 28 --> change submodes so that EIT/LASCO
benefits with a higher rate
- Dec 28 - Jan 3 --> change submodes so that CDS will benefit
from a high telemetry rate.
LASCO/EIT expressed some concern that they haven't had much
time in the higher submode telemetry rate and would like to
perform a longer test prior to operating a week at the higher
Action 11.1 on LASCO to pick a day(s) to do a long submode test.
More or less usual staffing.
Plans to take observations over a two week period similar to
global Sun month starting 23 December. Would like to see extra
C1 data over that period of time.
Will be at the EOF during the holidays.
Starting Dec 21 for a week's time, backup people (in case of
emergency) will be in Finland.
Normal operational staffing of Observatory Engineers and console crew.
Piet Martens will be available for most of the time.
Laura Allen will take some time off prior to Christmas.
Bobby Doney will take some time off after Christmas.
2. Priorities for the coming month
On December 2nd, their priority is JOP056 (The Interstellar
Focusing Cone). SoHO passing through dust cone from roughly
November 30 - December 4. They think the particle concentration
will be higher and we should be able to observe more events this
time rather than the previous attempt.
Here is what SWAN would desire from each team for JOP056:
SWAN -- Lyman-alpha
fine scanning around Sun with SU-Z sensor down to 3 degrees
UVCS -- Lyman-alpha, O-I (?)
Maps of Lyman-alpha up to 10 solar radii in the south pole
LASCO -- dust particles,
Pictures of C1, C2, C3 twice a day in white light
SUMER -- 584 A, He I
Observation off the limb around 584 angstroms, also
Lyman-alpha is desirable
EIT -- 304 A might reveal an enhancement of He +
CDS -- 584 A, He I, potential detection of 584 A off the limb, south
CELIAS -- observation of pick-up ions. Cover +/- 15 degrees of
looking at geometry, the gravitational focusing effect
Their priority is restarting CTOF in the next month.
Priority for Sami Solanki's JOP053 and JOP054.
On November 24th Ulysses and SoHO will be exactly at 90 degree angles
to each other (this only happens twice a year). They will study
outflow from streamers, FIP effect, and welcome participation
from other teams. During week 51, UVCS will be concentrating their
efforts on detecting MHD waves.
On December 10, 13 and 16 will be doing observations of Polar Jets.
Would like to eliminate SPWG on December 20. Show of hands shows
quorum for December 20 -- no change.
2b) Calibration Plans
Want to run Intercal001 the first week of the month. Need for more
"networking" with people to be more effective.
Some discussion about SICWG meetings. Suggestion to start an "e-mail"
group and send out e-mail of meetings/agenda/calibration issues to
2c) Joint Plans
See updated calendar on Web
3. JOP status
JOP009 has been updated to adapt to the SUMER pointing situation.
4. New JOPs
JOP011 (Sun grazing comet study). CELIAS also expressed interest in this
JOP saying it is worth looking at the CTOF and MTOF data to detect ions
from the comets.
JOP056 and JOP057 are new JOPs, see Web pages for details.
Short presentation on SoHO campaign catalogue. SOC requests help from
JOP leaders in submitting final reports. A web form will be set up to
facilitate submitting information for the campaign catalogue.
Ulysess at 4.5 AU, 22 degress North heliographic latitude
Earth -- Sun probe angle at 90 degrees will take 10 - 15 days
for solar wind to get to Ulysses