CHIEF OBSERVER'S REPORT for Week 32 
                      5-Aug-01 through 12-Aug-01 

                              A. Takeda

GENERAL 

Solar activity was moderate during the week. The GOES background was at
around the C1 level, and SXT recorded more than 10 runs of the flare table. 

SXT TECHNICAL 

No problems for the S/C. Since 9-Aug., however, we have had trouble with 
the operation supporting system at Kagoshima Space Center. Unfortunately,
it is currently summer holidays in Japan, staff are not available until 
16-Aug. This trouble has forced us to use the 34m-antenna instead of the
usual 20m antenna, with only high-priority commands like OP/OG write and 
STT timer set. As the result, SXT table uploads will be cancelled at 
least until 16-Aug. Moreover, the arrival of daily data from KSC to the 
Sirius database will be delayed by at least one day.

SXT SCIENTIFIC
 
For Web material see the science nuggets:
 
Current Week: http://isass1.solar.isas.ac.jp/sxt_co/010810.html
Index:        http://isass1.solar.isas.ac.jp/sxt_co/index.html
 
This week's nugget looks back at the actvity shown by NOAA active region 9544, 
during its disk passage on 10-23 July, 2001. Although it produced no large 
flares as recorded in the event reports from NOAA, SXT observed at least four 
erupted events which were followed by a significant CME and/or structural 
change of the nearby helmet streamers.  

CAMPAIGNS 

No official campaigns.

For SXT plans, see:
http://isass1.solar.isas.ac.jp/sxt_co/sxt_future.html

For SXT completed campaigns, see:
http://isass1.solar.isas.ac.jp/sxt_co/sxt_catalog.html


PERSONNEL

No change.

SEMINARS

No seminar this week



                     SXT TABLE PLAN, WEEK 33
                  (13-Aug-01 through 19-Aug-01)

Due to the trouble in ground-based system at KSC, described above, 
no new table will be uploaded at least until 16th.

_______________________________________________________________

JST Day         UT Start Time      Pass        Table ID

Friday AM       16-Aug-01 16:16      1    010816 P1 ARS1 DIFF*
Friday AM       16-Aug-01 21:17      4    010816 P4 ARS1 DARK*
Saturday AM     17-Aug-01 16:12      1    010817 P1 ARS1 STD* 
-----------------------

Friday tables are cancelled. Tables actually uploaded are....

Saturday AM     17-Aug-01 16:12      1    010817 P1 ARS1 DARK* 
Saturday AM     17-Aug-01 21:16      4    010817 P4 ARS1 STD* 

The date part of a table ID reflects the UT date of pass 1.
A '*' means that the UT date of pass 1 differs from the JST date
of the pass in question.
 
This table plan is likely to change.  Prepare for last minute changes.


Continuing requests:

KSC & SSOC Tohbans: If any KSC passes are likely to be cancelled (for
example due to typhoons) or an SXT table cannot be uploaded for any 
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, i.e. 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.