SXT REPORT FOR WEEKS 2-3

                          5-16 January 1994               
                                                              16 January 1994
                                                                Nariaki Nitta


GENERAL STATUS
     
     The SXT and the Yohkoh spacecraft are working well.

PERSONNEL

     Hugh Hudson left for Washington DC to attend the AAS meeting, leaving 
Greg Slater and Nariaki Nitta, as the US SXT personnel at ISAS, with Nitta
serving as Chief Observer.  Bob Bentley returned to Japan for a four-week
stay.  Hudson will come back early next week, together with two other 
scientists from Hawaii, Dick Canfield and Barry LaBonte.

SOLAR ACTIVITY

     The solar activity was still relatively high until 11 January, with 
3 M class flares and several microflares in this time frame.  As AR 7645-8 
went behind the western limb, solar X-ray brightness decreased by a factor 
of two.  However, with AR 7640 returning, the GOES background is already 
approaching the C level.

SCIENCE PROGRESS

     There were not many people at ISAS, either from the US or UK or from 
Japan.  Perhaps it is still a holiday season.  The Yohkoh seminar will not 
be held until 20 January.  Another factor that fewer Japanese scientists 
were present at ISAS may be that at NAOJ they started serious discussion 
about Solar-B.

     Not much science progress was attained to report here, mainly because
of fewer people.  Slater worked chiefly on synoptic maps.  Nitta continued 
his study of AR 7260 flares.  Shibata and Nitta studied X-ray jets in 
association with active region development.  Kurokawa and his students at 
Kyoto visited, analyzing the data that was taken during the Hida campaigns.  
Outside ISAS, there were several correspondences among different people,
trying to identify the problem that present alignment software locates
an SXT whitelight flare a few SXT pixels away from the peak hard X-ray 
source.  Discussion will continue.

SXT OPERATIONS

     A bakeout of the CCD was carried out without problem (10-12 Jan). 
The EW weekly offpoints were executed on schedule.  A campaign to 
observe bright points are planned for next week in coordination with 
Kitt Peak.  Without much preparation or warning, a table for bright 
points was uploaded for short time as a test, and we obtained partial
frame images of 2.6' (NS) x 10.4' (EW), in which a bright point was 
observed to emerge and brighten.