30 May 1998
                                                        David McKenzie 

              SXT CHIEF OBSERVER'S REPORT AND TABLE PLAN

                 CHIEF OBSERVER'S REPORT for Week 22
                        25-May-98 to 31-May-98

SOLAR ACTIVITY

The Sun was quiet until 27-May, when the activity suddenly began increasing
again.  We observed two M flares and a number of CMEs.

SXT INSTRUMENT STATUS

SXT has been working fine.  No problems to report.  The Chief Observers
feel that it is time for another adjustment to the normal pointing.  We
request an OP+OG upload, and an ROG #032 (decimal) for Tuesday. 

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
In this week's webpage we describe a coronal feature observed to 
connect two very distant active regions.

CAMPAIGNS

This week TRACE began a two-week campaign to follow an active region
all the way across the disk.  We made observations to help support this.

PERSONNEL

No personnel changes this week.

SEMINARS

There was no seminar this week.


                   SXT TABLE PLAN FOR WEEK 98_23
                      (01-Jun-98 - 06-Jun-98)

SXT Chief Observer: McKenzie 

This week we will try to support Karin Muglach's AR campaign; 
the TRACE AR campaign is looking at the same target.

________________________________#_______________________________

JST Day     	UT Start Time      Pass    Table ID

Monday         	01-JUN-98 05:38     2      980601 P2 ARS2 STD    
Tuesday         02-JUN-98 05:56     2      980602 P2 ARS2 DARKCAL 
Wednesday 	03-JUN-98 04:31     2      980603 P2 ARS2 STD+DIFF  
Thursday   	04-JUN-98 04:48     2      980604 P2 ARS2 STD  
Friday		05-JUN-98 03:23     2      980605 P2 ARS2 STD  
Saturday        06-JUN-98 03:41     2      980606 P2 ARS2 STD

NOTE: This plan may be changed.

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.