12 May 1996
                                                        Serge Savy
                                                     
                                                      
                SXT CHIEF OBSERVER REPORT AND TABLE PLAN

SXT CHIEF OBSERVER'S REPORT for Week 19:   6-MAY-96 to 12-MAY-96

SOLAR ACTIVITY

Solar activity increased last week with the appearance of AR7962.  A CME
associated with this region was observed between 17:39-19:29 UT on 5-May by
MLSO.  Two C-class flares occurred, one on 6-May, the other on 7-May.  A
tiny new cycle region appeared at the north east, AR7963. 
 
SXT INSTRUMENT STATUS

There were a couple of SXT bitmaps errors, detected and recovered without
problem, and an SEU at pass 4 on Saturday.  The SEU error was recovered at
pass 5, but it prevented us from uploading the planned table that day. 
Otherwise SXT has been operational with no problems. 

CAMPAIGNS

No campaigns last week.

SEMINARS

No regular seminar at ISAS in week 19.


                       SXT TABLE PLAN FOR WEEK 20
                        (13-May-96 to 19-May-96)

This week we will be engaged a coronal loop filling factor campaign with
Jim Klimchuk on 13 May, and in coordination with SoHO (CDS and SUMER).  The
target of the campaign will be AR7962, in 2x2 PFIs, standard setup. 

The dark calibration table will be loaded on Tuesday, and the weekly
diffuser images included as part of a standard table on Wednesday. 

The provisional SXT Table Plan for the week is as follows:

    KSC Time (start) in JST     Pass          Table ID        
_____________(= UT + 9 hrs)______#_______________________________
 
Monday	    13-MAY-96 14:50      4         960513 P4 ARS2 STD+LONG
Tuesday     14-MAY-96 10:00      2         960514 P2 ARS1 DKCAL 
Wednesday   15-MAY-96 10:19      2         960515 P2 ARS1 STD+DIFFU      
Thursday    16-MAY-96 08:55      2         960515 P2 ARS1 STD+LONG
Friday      17-MAY-96 09:14      2         960517 P2 ARS1 STD+LONG
Saturday    18-MAY-96 14:43      4         960518 P4 ARS1 STD+LONG


*** Please note that this table plan may change ***


Dumping Patrol images:
   We request that KSC tohban continue to dump a patrol image each time an
SXT table is loaded to facilitate the study of optimizing ARS parameters
for an awfully quiet period. 

  SSOC TOHBAN, please fax the preliminary OP list to D-tou when it contains
a terminator so that the Chief Observer can suggest which OG's to use. 

  PREPARATION OF OGs: No new OGs need to be made this week.