4 January 1998
                                                            Hugh Hudson 
  

              SXT CHIEF OBSERVER'S REPORT AND TABLE PLAN

                 CHIEF OBSERVER'S REPORT for Week 1 
                       29-Dec-97 to 4-Jan-98


SOLAR ACTIVITY

As far as GOES was concerned, activity remained at a medium level,
with about ten C flares and at least two M events. What Yohkoh saw,
of course, is something we won't know for a while.

SXT INSTRUMENT STATUS

Yohkoh and SXT survived holiday stresses well, but a normal-looking
error was present in SXT at the first pass on Jan. 4. This was
immediately recovered and the images look OK.

SXT WEEKLY SUMMARY ON THE WEB

Since we can't see data, there will be no "science nugget" this
week. See 

ftp://isass0.solar.isas.ac.jp/pub/yohkoh_in_1997/1997.html

for a review of some 1997 items. Or check out

ftp://isass0.solar.isas.ac.jp/pub/sxt_co/index.html.

for the entire list of nuggets thus far.

CAMPAIGNS

There were no official campaigns conducted this week. 

SEMINARS

There were no seminars this week. 

  

                      SXT TABLE PLAN FOR WEEK 2 
                       (5-jan-98 to 12-jan-98)

SXT Chief Observer: Hudson

________________________________#_______________________________

JST Day     UT Start Time      Pass    Table ID

Sunday      4-JAN-98 04:50      3      980104 P3 ARS1 DARKCAL
Monday      5-JAN-98 03:25      2      980105 P2 ARS1 STD+DIF
Tuesday     6-JAN-98 03:43      2      980106 P2 ARS1 STD
Wednesday   7-JAN-98 02:19      3      980107 P3 ARS1 STD
Thursday    8-JAN-98 04:20      3      980108 P3 ARS1 STD
Friday      9-JAN-98 01:12      2      980109 P2 ARS1 STD

Note that this plan is subject to change.

Continuing requests:

SSOC Tohban: On the weekly visible diagram, please mark the official 5
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.