27 June 1998
                                                        David McKenzie 

              SXT CHIEF OBSERVER'S REPORT AND TABLE PLAN

                 CHIEF OBSERVER'S REPORT for Week 26
                        21-Jun-98 to 27-Jun-98

SOLAR ACTIVITY

Activity was medium most of the week, with many "C" class events and a 
background in the middle-"B" level.  On Saturday a flare almost reached
"M" class.  

SXT INSTRUMENT STATUS

SXT has been working fine, no new problems to report.  

SXT SCIENCE 

For Web material see

Current Week: ftp://isass0.solar.isas.ac.jp/pub/sxt_co/SXTweekly.html
Index:        ftp://isass0.solar.isas.ac.jp/pub/sxt_co/index.html
There is not a new webpage this week, but please take a few minutes to
look over some of the older ones in the index.

CAMPAIGNS

There were no organized campaigns this week.

PERSONNEL

Hudson san returned at the end of the week.



                   SXT TABLE PLAN FOR WEEK 98_27
                      (28-Jun-98 - 04-Jul-98)

SXT Chief Observer: Hudson 

This week has only a few Yohkoh passes at KSC, due to preparations 
for the launch of Planet-B on Saturday.  There are no formal observing
campaigns planned for this week, and because of the short schedule it
will be difficult to support joint observations this week.  We will try 
to follow TRACE observing plans, if possible.

________________________________#_______________________________

JST Day     	UT Start Time      Pass    Table ID

Monday         	28-Jun-98 19:01     3      980628 P3 ARS1 STD    
Tuesday        	29-Jun-98 19:19     4      980629 P4 ARS1 DARKCAL    

Thursday       	01-Jul-98 18:11     3      980701 P3 ARS1 STD+DIFF    
Friday         	02-Jul-98 18:29     4      980702 P4 ARS1 STD    

Note that this plan may change during the week.


Continuing requests:

SSOC Tohban: On the weekly visible diagram, please mark the official
five passes first and then cross out those passes that will be given to
other satellites.  That way we can keep the numbering straight in the
Yohkoh software system.

SSOC Tohban: SXT operations do not currently include terminator off- 
pointing. It is unnecessary this week to ask the SXT Chief Observer
for terminator off-pointing information.

KSC & SSOC Tohbans: If any KSC passes are likely to be cancelled (for
example due to a typhoon) or an SXT table cannot be uploaded for some
reason, please telephone and e-mail the Chief Observer immediately.
(sxt_co@isass0.solar.isas.ac.jp, copy to sxt_st@flare2.solar.isas.ac.jp). 

KSC Tohbans: In general flare mode supersedes table upload, ie if a
flare is in progress please do not upload a new table, and contact the
chief observer. Normally it is OK to go ahead with the planned table
without change on the next pass, if it is available. Chief observers
should keep an eye on this.