SXT REPORT FOR WEEKS 4
(This week number of consistent with the convention adopted in the 
 Yohkoh database.)
                          17-23 January 1994               
                                                              23 January 1994
                                                                Nariaki Nitta


GENERAL STATUS
     
     In spite of an SEU-induced error, the SXT and the Yohkoh spacecraft 
are working well.

PERSONNEL

     Hugh Hudson returned to ISAS together with other Hawaiians, Dick 
Canfield and Barry LaBonte.  Nariaki Nitta is going back to California.  
Greg Slater is in charge reformatting and other software issues.  Two 
BCS scientists from RAL, Jim Lang and Dave Pike are making short visits.

SOLAR ACTIVITY

     Despite the strong expectations that AR 7654 would produce large 
flares, it apparently became weaker, and the GOES background level is 
around B3.  

SCIENCE PROGRESS

     There were significant activities focusing on AR 7260 (the region of
interest at the Hawaii CDAW, Dec. 93).  Canfield worked with Shibata (NAOJ) 
and his students on moving blue-shifted features seen in the MCCD 
dopplergrams, in connection with the emerging-flux-driven reconnection model.
Shimizu (Univ of Tokyo) and Nitta had a short session on how to locate X-ray 
microflares on the MCCD continuum images.  Lidia van Driel-Gesztelyi (Univ
of Tokyo) made her monthly visit to ISAS and worked with Nitta on the draft 
of a paper on flares along the sheared inversion line, also examining flares 
in the emerging flux region in detail.  
     Apart from AR 7260, Hudson discussed hard X-ray emission above the
soft X-ray loop with its discoverer S. Masuda.  
     The Yohkoh seminar resumed on the 20th with the speaker M. Ugai (Ehime
Univ).  The topic, spontaneous reconnection, interested many people who
attended the seminar.  On the same day, we went to a Japanese-style 
shouting bar to entertain R. Fielder, a secretary of LPARL, who used to
work for SXT and was on her personal trip to Japan.  There, half of the
guests enjoyed hot debates on the importance of reconnection.

SXT OPERATIONS
      
     The bright point campaign was cancelled due to the unfulfilled 
expectations of many flares.  Hudson will take over as Chief Observer.