CHIEF OBSERVER'S REPORT for Week 7 12-Feb-01 through 18-Feb-01

H. Hudson

GENERAL

Dead quiet solar conditions continue; still no M's or X's.

SXT TECHNICAL

No problems.

SXT SCIENTIFIC

For Web material see the science nuggets:

Current Week: http://isass1.solar.isas.ac.jp/sxt_co/010216.html Index: http://isass1.solar.isas.ac.jp/sxt_co/index.html

The newest nugget, "A million-kilometer jet," describes a large-scale coronal event observed by Ilia Chertok (IZMIRAN). It is perhaps a large double-sided jet, according to the Shibata-Shimojo classification. On the other hand, perhaps this is a filament-channel activation event, without an eruption. Or perhaps these are two descriptions of the same thing, please judge for yourself. It is in any case beautiful.

CAMPAIGNS

No campaigns during the interval and none planned at present. We remain on the alert for sigmoids as a "target-of-opportunity".

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 changes. SEMINARS

D. P. Choudhary (PRL): "Flows in the Active Region"

TELEMETRY DOWNLINKS

We hereby cease listing telemetry downlink statistics. The tohbans will take over this task. 

                     SXT TABLE PLAN, WEEK 8 
                   (19-Feb-01 through 24-Feb-01)
                               
 A quiet-Sun campaign will run for three days (20,24,25) this week.
We don't have details of the times yet, nor do we know about activity of course, so the tables below are place-holders.

JST Day UT Start Time Pass Table ID

Friday PM 16-FEB-01 11:35 3 010216 P3 STD Saturday PM 17-FEB-01 11:37 3 010217 P3 STD 

Monday PM      19-FEB-01 11:43     3      010219 P3 STD
 Tuesday PM     20-FEB-01 06:42     1      010220 P1 QS
 Tuesday PM     20-FEB-01 11:46     4      010220 P4 QS-DIF
 Wednesday PM   21-FEB-01 06:44     1      010221 P1 DARKCAL
 Wednesday PM   21-FEB-01 11:49     4      010221 P4 STD
 Thursday PM    22-FEB-01 08:28     2      010222 P2 STD
 Friday PM      23-FEB-01 08:31     2      010223 P2 STD
 Saturday PM    24-FEB-01 08:34     3      010224 P3 STD

The date-part of a table ID reflects the UT date of the pass 1. A '*' signifies that the date of the table ID does not agree with 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 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.