MINUTES: Daily EOF meeting, 28-May-96

ANNOUNCEMENTS:

	Chris St. Cyr talked about dust particles.  The C3 coronagraph
has been picking up more dust particles -- they see some every day.
The guess is that they're being thrown off by SOHO, but it's not clear
when or how.  He showed a picture of similar particles thrown off by
SMM, and related a scary story of a particulate event on SMM.
Apparently, the SMM fine sun sensor followed a particular cloud of
dust particles, instead of the Sun, for a while.  When it drifted far
enough off target, the SMM spacecraft underwent its equivalent of an
ESR.  He asks Matra-Marconi to consider (and let us know) what steps
(if any) they've taken to prevent the same thing from happening to the
SOHO fine pointing sun sensor (which is apparently identical in
physical design to SMM's).

FOT STATUS:

	24-May (day 145)

	* There was a Roll Anomaly flag trip.  It was minor -- RMW
mode was not tripped -- and the FOT cleared the flag.
	* 4 minutes of data were lost (unrecoverably) at 18:28

	25-May (day 146)	

	* 6 minutes of data were lost (unrecoverably) on 25-May at
the clock-sales hour (10:08).

	26-May (day 147)
	
	* A star-tracker SEU put us in RMW mode at 18:18; we went back to
"normal" mode at 18:49, and recoveruy was complete at 21:40.

	27-May (day 148)
	
	* CMS and ECS had troubles connecting around 15:01.
	* D27 lost lock on Xponder 2 for a while.  This is normal for them --
it's not as nice a station as some of the other ones.

	28-May (day 149) (today)
	
	FOT will pick up a new guide star today -- a magnitude 5.5.  

INSTRUMENT STATUS:

	GOLF:  	OK.  Team leaves today.  (Bye, folks!  Have a safe trip!)

	MDI:	OK.  Dynamics program continues.  MDI continues to 
generate synoptic full-disk magnetograms, but they are not available (yet)
to the planning tool in this mode.  Coming any day now.

	CDS:	OK.  Doing GIS engineering this afternoon.
	
	LASCO:	OK.  Synoptic program continues. Corona is "extremely quiet".
	See (above) Chris St. Cyr's discussion of dust particles.

	EIT:	OK.  Normal symoptic program continues.  High-cadence periods
	are being used to support the XBP program.

	SWAN:	OK.

	CELIAS:	OK.  Commanded the CTOF acceleration voltage up to 23 KV;
today they will be loading patches for the DPO software.



OBSERVING PROGRAMS:

	The XBP study continues.  

	Intercal 9 will be happening starting tomorrow.  It's primarily
a SUMER/UVCS operation.