CHIEF OBSERVER'S REPORT for Week 38 
                       17-Sep-01 through 23-Sep-01 
 
                              L. Fletcher

GENERAL 

Solar activity was high, with the baseline flux hovering just below C2
level. There were 9 M class flares, mostly M1 class, but with one M8.1


SXT TECHNICAL 

There was a pointing anomaly reported during flare mode on
17-Sep-01. Flare pointing was not centred on the brightest
pixel. Senior COs are scratching their heads about this, but so far no
other example has been reported since, despite many flares.  We
suspect that because it was a small flare, the patrol image was faint,
and ARS might have been confused by a CR hit for example. For a report
see http://isass1.solar.isas.ac.jp/sxt_co/scratch/anomaly.html

SXT SCIENTIFIC
 
For Web material see the science nuggets:
 
Current Week: http://isass1.solar.isas.ac.jp/sxt_co/010921.html
Index:        http://isass1.solar.isas.ac.jp/sxt_co/index.html
 
This week's nugget discusses some results from `Whole Sun Month 3' run
during August of 1999. These observations were of the evolution of a
sigmoidal active region. SXT and H alpha observations are presented,
and a possible evolutionary scenario discussed.


CAMPAIGNS 

We were scheduled to support JOP 146, but because of two instances of flares 
taking place we could not upload tables on the first day, while on the 
following days there was no suitable target so the JOP was cancelled.


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

G. Slater returned to Lockheed.

SEMINARS

The seminar this week was by Boris Somov.
"Collisionless 3D Reconnection in the Structure and Dynamics of 
Solar Active Regions"


                    SXT TABLE PLAN, WEEK 39
                  (24-Sep-01 through 29-Sep-01)

We are not participating in any campaigns, so no special support
tables are planned for this week

_______________________________________________________________

JST Day         UT Start Time      Pass        Table ID

Monday AM       23-SEP-01 23:58      2    010923 P2 ARS1 DFF*
Monday AM       24-SEP-01 03:21      4    010924 P4 ARS1 STD
Tuesday AM      24-SEP-01 23:55      2    010924 P2 ARS1 DRK*
Wednesday AM    25-SEP-01 22:12      2    010925 P2 ARS1 STD*
Thursday AM     26-SEP-01 22:09      2    010926 P2 ARS1 STD*
Friday AM       27-SEP-01 22:07      2    010927 P2 ARS1 STD*
Saturday AM     28-SEP-01 22:04      2    010928 P2 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
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.