19 January 1997 
                                                          Serge Savy

              SXT CHIEF OBSERVER'S REPORT AND TABLE PLAN

                  CHIEF OBSERVER'S REPORT for Week 03
			13-Jan-97 to 19-Jan-97
                         

SOLAR ACTIVITY

The Sun was very quiet last week with only a few small regions visible. 
There was one B-class flare on 16 January.

SXT INSTRUMENT STATUS

The SXT instrument remains in fine working order.

CAMPAIGNS

Last week there was a campaign to observe streamers in collaboration with
the SoHO spacecraft.  For this campaign Yohkoh was offpointed 5' East from
17 to 19 January, and then 5' West on the 19th (until the 22nd) and a long
exposure FFI table was uploaded.  The bases of streamers were clearly
observed with this table. 

The long CCD bakeout ended on successfully 14 January, and it appears that
SXT images are cleaner following the bakeout.

SEMINARS

There were no Yohkoh seminars in Week 3.





                      SXT TABLE PLAN FOR WEEK 04
                       (19-Jan-97 to 26-Jan-97)

This week we are continuing with the streamers campaign in collaboration
with SoHO. Yohkoh was offpointed 5' West on 19 January for this campaign
and we will return to normal pointing at the end of the campaign on 22
January. No other campaigns this week.

The dark calibration table will be uploaded on Wednesday, and the weekly
diffusers included as part of a standard table on Friday. (There are no KSC
contacts on Thursday because of the launch of MUSES-B.) 

Tohbans: Please issue the OG to return Yohkoh to normal pointing in the OP
on 22-Jan-97.


    KSC Time (start) in JST     Pass          Table ID
_____________(= UT + 9 hrs)______#_______________________________

Monday       20-JAN-97                      (Week 3 Holiday)

Tuesday      21-JAN-97                      (No table load)

Wednesday    22-JAN-97 08:57     1          970121 P1 DKCAL

Thursday     23-JAN-97                      (No KSC contacts)

Friday       24-JAN-97 13:00     4          970124 P4 STD+DIFF

Saturday     25-JAN-97 09:53     2          970125 P2 STD

 *** Please note that this table plan may change during the week. ***


Continuing requests:

We request that KSC tohbans continue to dump a patrol image each time an
SXT table is loaded to facilitate the study of optimizing ARS parameters
during quiet times. 

SSOC TOHBAN, please e-mail any terminator schedule to the chief observer
(sxt_co@isass0) so that he can decide about filters and offpoints.