SOHO SPWG Minutes - November 1996

Attendees

Action items: 11.1:

On LASCO to propose the earliest possible date for a Submode 2 and 3 test before/for the Christmas holidays

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.

MDI

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.

SUMER

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).

Telemetry suggestion:
• 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 telemetry rate.
Action 11.1 on LASCO to pick a day(s) to do a long submode test.

CDS

More or less usual staffing.

UVCS

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.

LASCO/EIT

Will be at the EOF during the holidays.

SWAN

Starting Dec 21 for a week's time, backup people (in case of emergency) will be in Finland.

FOT

Normal operational staffing of Observatory Engineers and console crew.

SOC

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

SWAN

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 region

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 ecliptic longitude
looking at geometry, the gravitational focusing effect

CELIAS

Their priority is restarting CTOF in the next month.

CDS

Priority for Sami Solanki's JOP053 and JOP054.

UVCS

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.

EIT

On December 10, 13 and 16 will be doing observations of Polar Jets.

MDI

Would like to eliminate SPWG on December 20. Show of hands shows quorum for December 20 -- no change.

2b) Calibration Plans

2c) Joint Plans

3. JOP status

4. New JOPs

JOP056 and JOP057 are new JOPs, see Web pages for details.

5. AOB

Celias --->
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