30 June, 2000 
                                                 B. Handy, H. Hudson

 
                   CHIEF OBSERVER'S REPORT for Week 27
                      26-Jun-00 through 2-Jul-00


GENERAL 

Activity tapered slightly this week, with the GOES plot nearly flatline
at sub-C level for a couple of 12-hour stretches.  At the last gasp, an
M flare happened on July 1. This week, of course, we expect fireworks
on Tuesday.

SXT TECHNICAL 

SXT worked fine without apparent problems this week.  Some experimenting
took place in preparation for JOP 123 in pursuit of DEM measurements.

SXT SCIENTIFIC

For Web material see

Current Week: http://isass1.solar.isas.ac.jp/sxt_co/000630.html
Index:        http://isass1.solar.isas.ac.jp/sxt_co/index.html

This week's nugget was inspired by N. V. Nitta's public release of his 
flare catalog cross-correlating TRACE data with Yohkoh/SXT and HXT.  


CAMPAIGNS 

JOP 123 (DEM Analysis) started on July 1.

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

H. Hudson returned.


SEMINARS

None.


TELEMETRY DOWNLINKS

Week     Wallops   Santiago  Goldstone   Canberra     Madrid      Japan
  25          31          0          5          0          4         30
  26          29          0          3          7          3         26
  27          28          0          1          3          1         27




                      SXT TABLE PLAN, WEEK 28 
                      (02-Jul-00 - 08-Jul-00)

The VLA/SOHO/SXT Campaign (JOP 128, DEM studies) runs this week.
________________________________#_______________________________

JST Day         UT Start Time      Pass   Table ID

Monday PM      03-JUL-00 01:00     2      000702 P2 ARS1 VLA*
Tuesday PM     04-JUL-00 01:08     2      000703 P2 ARS1 DARK*
Wednesday PM   05-JUL-00 01:16     3      000704 P3 ARS1 VLA*
Thursday PM    06-JUL-00 01:24     3      000705 P3 ARS1 DIFF*
Friday PM      06-JUL-00 23:49     2      000706 P2 ARS1 STD*
Saturday PM    07-JUL-00 23:57     3      000707 P3 ARS1 VLA*

* The ID reflects the UT date of the first pass.

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.