CHIEF OBSERVER'S REPORT for Week 44
 
                        23-Oct-00 through 28-Oct-00

                           A. Takeda, D. McKenzie


GENERAL 

Solar activity was gradually rising since middle of the week. GOES backround 
level and the frequency of sub-M class flares were both increasing. 
While GOES observed 3 M-class flares(M1.1 on 27th, M1.7 on 28th, and M4.4
on 29th), SXT saw the former 2 and C8.5 flare on 26th. 

SXT TECHNICAL 

No problems this week. Pointing and roll remained stable. 
We updated normal pointing on 27th Oct.

SXT SCIENTIFIC

For Web material see the science nuggets:

Current Week: http://isass1.solar.isas.ac.jp/sxt_co/001027.html
Index:        http://isass1.solar.isas.ac.jp/sxt_co/index.html

The latest nugget reviews the pointing system of Yohkoh, giving good
explanation for the bad pointing which Yohkoh underwent in week 42. 

CAMPAIGNS 

The final week cooperating with JOP 104, which ended on 27 Oct. We observed
several regions same as the JOP's target on limbs.

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. The next week(w45), we plan to have a seminar on 2 Nov.


TELEMETRY DOWNLINKS

Week  Wallops Santiago Goldstone Canberra Madrid NASA Japan
  44       28        1         5        0     10   44    35
  45       25        1         3        0     13   42    28




                     SXT TABLE PLAN, WEEK 45
                      (30-Oct-00 to 05-Nov-00)

There are no campaigns planned for this week, so we will maintain
standard operations.  There are two table uploads planned for
Wednesday morning (JST).
________________________________#_______________________________

JST Day         UT Start Time      Pass   Table ID

Tuesday AM     30-Oct-00 17:22     3      001030 P3 ARS1 DARK*
Wednesday AM   31-Oct-00 14:04     1      001031 P1 ARS1 DIFF
Wednesday AM   31-Oct-00 19:10     4      001031 P4 ARS1 STD*
Thursday AM    01-Nov-00 15:51     3      001101 P3 ARS1 STD*
Friday AM      02-Nov-00 15:57     3      001102 P3 ARS1 STD*
Saturday AM    03-Nov-00 16:03     3      001103 P3 ARS1 STD*
Sunday AM      04-Nov-00 16:08     3      001104 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.