CHIEF OBSERVER'S REPORT for Week 37 
                       10-Sep-01 through 16-Sep-01 
 
                              L. Fletcher

GENERAL 

Solar activity was moderately high, with the baseline flux being
elevated by a large and complex group of active regions (9607, 9608,
9610, 9618) which transitted during the week, and were also remarkably
far south. There were 5 M-class flares, the highest being M4.5


SXT TECHNICAL 

No new problems to report. 


SXT SCIENTIFIC
 
For Web material see the science nuggets:
 
Current Week: http://isass1.solar.isas.ac.jp/sxt_co/010914.html
Index:        http://isass1.solar.isas.ac.jp/sxt_co/index.html
 
This week's nugget reports on a cusp inside a cusp which was seen this week
and discusses other instances of this configuration and their possible 
interpretation


CAMPAIGNS 

We supported JOP 146, which aims to determine `once and for all' the 
temperature structure in simple bipolar loops, using TRACE, CDS and SXT data.
It took us a day or two to work out the optimum program, but settled
on alternating cycles of 3 PFIs, one cycle exposed for the fainter loops and
the other for the AR core.

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

L. Fletcher arrived from Glasgow for 4 weeks.

SEMINARS

No seminar this week.



                     SXT TABLE PLAN, WEEK 38
                  (17-Sep-01 through 22-Sep-01)
 
We will be supporting JOP146 beginning on Tuesday. We expect two
uploads per day because of this, although this may not be necessary
depending on the region chosen by the campaign co-ordinator.
 
_______________________________________________________________
 
JST Day         UT Start Time      Pass        Table ID
 
Monday PM       17-SEP-01 05:18      3    010917 P3 ARS1 DARK
Tuesday AM      18-SEP-01 00:13      1    010918 P1 ARS0 JDFF
Tuesday PM      18-SEP-01 05:16      4    010918 P4 ARS1 STD
Wednesday AM    19-SEP-01 00:10      1    010919 P1 ARS0 J146
Wednesday PM    19-SEP-01 03:32      3    010919 P3 ARS1 STD
Thursday AM     20-SEP-01 00:07      1    010920 P1 ARSO J146
Thursday PM     20-SEP-01 05:12      4    010920 P4 ARS1 STD
Friday AM       21-SEP-01 00:05      1    010921 P1 ARS0 J146
Friday PM       21-SEP-01 05:10      4    010921 P4 ARS1 STD
Saturday AM     22-SEP-01 02:44      3    010922 P3 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.