CHIEF OBSERVER'S REPORT for Week 41
 
                         2-Oct-00 through 8-Oct-00

                      B. Handy, H. Hudson, A. Takeda


GENERAL 

The west limb of the sun produced several M-class and one X1.2 flare
this week.  As these regions faded over the limb, activity decreased
and baseline GOES level is now around B7.

SXT TECHNICAL 

No problems this week.  The COs have pushed hard on the SXT point
spread function this week, partially in response to a test run of
Akiyama's thesis defense on the topic.  T. Kosugi suggested a simple
way to use Fourier analysis to separate the main beam of the PSF from
the scattering wings.  We (the COs) have attempted a first cut at 
this, with dismal results.  We're working on it.

Right before the X-flare mode data, there's about a 7-minute gap in 
the reformatted data and that available on SIRIUS.  Hopefully one of 
the SXT Wizards can explain what happened here.

SXT SCIENTIFIC

For Web material see the science nuggets:

Current Week: http://isass1.solar.isas.ac.jp/sxt_co/001006.html
Index:        http://isass1.solar.isas.ac.jp/sxt_co/index.html

The newest nugget looks at a confined ejection from the X-class flare
this week from AR #9177.

CAMPAIGNS 

JOP 104 continues.  Next week also includes B. Schmeider's Flare campaign.

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

Nitta left.  Hudson and Handy attended the S-RAMP meeting, and Takeda
attended the ASJ meeting. Gopalswamy and Schmieder visited.

SEMINARS

None this week.

TELEMETRY DOWNLINKS

Week     Wallops  Goldstone   Canberra     Madrid       NASA      Japan
  41          26          2          1          0         29         29
  42          23          2          1          0         26         33




                     SXT TABLE PLAN, WEEK 42
                      (9-Oct-00 to 14-Oct-00)

JOP104 continues, but we may not actively cooperate with the campaign
unless there is a more promising region coming up on the east limb than
regions elsewhere.  B. Schmeider's flare/filament campaign runs this
week, and seems more compatible with SXT operations.

________________________________#_______________________________

JST Day         UT Start Time      Pass   Table ID

Tuesday PM     10-OCT-00 04:55     4      001010 P4 ARS1 DIF
Wednesday AM   10-OCT-00 23:56     1      001010 P1 ARS1 DARK*
Wednesday PM   11-OCT-00 05:02     4      001010 P4 ARS1 STD*
Thursday AM    12-OCT-00 01:44     3      001011 P2 ARS1 STD*
Friday AM      13-OCT-00 01:50     3      001012 P2 ARS1 STD* 
Saturday AM    14-OCT-00 01:56     3      001013 P3 ARS1 STD*

* means that the UT date of pass 1 differs from the JST date
of the pass in question 

This table plan is subject to change. 

Continuing requests:

KSC & SSOC Tohbans: If any KSC passes are likely to be cancelled (for
example due to heavy snowfall) 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, 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.