EOF/MEDOC SOHO Daily Meeting Minutes
May 22, 1997


Notes: 
Rai Wu (UVCS/EOF) and 
Ester Antonucci (MEDOC)



ANNOUNCEMENTS:
~~~~~~~~~~~~~
Tomorrow's meetings: 
	Daily  - 13:00 UT
	Weekly - 13:30 UT
	SPWG   - 14:00 UT in EAF

FOT BRIEFING:
~~~~~~~~~~~~
S/C Status:             Nominal except RCVR 1
Anomaly Summary:        None
Accomplished Activities: RSL, VIRGO, VC 2 TT, RCVR 1 used on D27
Planned Activities:     RSL, Virgo, SWAN, Nom HGA, VC 2 via TT,
                        LGA for D27

 Tesing HGA w/ D27 inconclusive.  Future D27 passes on LGA unless request
 by EXP Teams 

Ground System Anomaly Summary:

 141/2325 Trouble locking HGA RCVR 1 D27, 43 min no cmding

DSS-27 and instrument commanding:
DSS-27 only has 200 W of uplink power.  This in combination with commanding
on receiver #2 (coupled to the low-gain antenna) has resulted in instruments
having problems getting their commands uplinked.
The FOT can acquire receiver #1 and the high gain antenna for instrument
commanding; however, this takes time (~40 minutes) and involves other
technical issues.  In short, instrument teams must tell the SOC 3 hours
prior to DSS-27 AOS if they want to command on that DSS-27 pass so that
the FOT can schedule the extended sweep.


SOLAR STATUS:
~~~~~~~~~~~~
Extended prominence at Eastern limb, in the southern hemisphere, several
present, large active regions likely to flare on disk.

  - CME at approximately 2100 UT last night on the West limb
  - AR 8402 flare (M0) at ~2200 UT
  - Darkening south of that region maybe indicative of another CME
  - Loop structures connecting AR 8402 and small dipole trailing it.
  - Geomagnetic storm conditions forecast 
  - Type 2 radio bursts
  - Possible halo event?


Status GBO (JOP 9)
~~~~~~~~~~~~~~~~~~
THEMIS : supposed to run normally tomorrow
PIC-DU-MDI : ready to support JOP 09 with high cadency coronal images


INSTRUMENT STATUS:
~~~~~~~~~~~~~~~~~
CDS: 	Nominal, nice observations of the AR at Western limb in several 
	lines; data from network boundary observations, run on May 21,
	look very satisfactory.

SUMER: 	Nominal, supported JOP 9 observations

EIT: 	Nominal, activity in the AR on disk.  Tomorrow EIT will run its
	'shutterless mode' program from 15-16 UT and will submit an OCD to
        move the normal SVM time from 14:30-15 to 14:00-14:30 so they can
        use from 14:30-15 to prepare for the shutterless mode.  Study also 
        involves SUMER and CDS who wish to avoid flaring regions

UVCS    Nominal
        Streamer Abundance study: PA 80 @ 3.5 Rsun for ~3 hours with
        UVCS/Ulysses coordinated pB measurements only during last hour
        Observation                     
          PA 80 @ 4.5 Rsun for ~6 hours with pB measurements only during
          last 4 hours
        Synoptic
        
LASCO   Nominal. Saw CME on W Linmb at ~ 2100 UT

MDI     Nominal
        Continuous contact
        Observed mixed flux in AR the crossed central meridian 
        Trailing dipole beginning to grow



May 23 Planning :

JOP 9 :

- Target selected for JOP 09 :
 South-East prominence ; coordinates (-683, - 678),
 position angle 135 degrees, S45, E85.


CDS :
- JOP 9
- Network boundary observations near disk center (12 h - 15 h)
- Joint Active Region Observation. (15 h - 18 h)
- Sunspot observations leading sunspot of the same AR (18h - 18:30)
- Active network observations at South of the same AR
- Active network observations at South of AR jointly with SUMER

SUMER :

Slit repositioning on AR :

- AR boundary study (7 h - 12 h)
- Joint AR observations. (15 h - 18 h) (560, 110 SUMER slit)
- Sunspot observations leading sunspot in the same AR
- Active network observations South of AR jointly with CDS

EIT:
- AR joint observation
- (possibly sunspot joint observation)