13 December 1999 H.S. Hudson CHIEF OBSERVER'S REPORT for Week 50 6-Dec-99 to 13-Dec-99 GENERAL Solar activity was low from the point of view of flares, but high enough from the point of view of background level. SXT TECHNICAL There were no problems during the week. We did the bakeout successfully. Pointing may have to be updated on Tuesday's operations. For Web material see Current Week: http://isass1.solar.isas.ac.jp/sxt_co/991210.html Index: http://isass1.solar.isas.ac.jp/sxt_co/index.html This week's science nugget deals with ray-tracing in grazing-incidence optical systems. CAMPAIGNS There were no organized campaigns this week, but we have started sending daily messages to Antarctica in support of target selection for the FlareGenesis telescope. We continued last week taking higher-cadence quarter-resolution FFIs, but this week's plan is to discontinue this while we assess the many images we've obtained. Flare mode continues with the modified AEC offset scheme. 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 No seminar. SXT TABLE PLAN, WEEK 51 (12-Dec-99 to 19-Dec-99) The FlareGenesis telescope has slipped its launch date, awaiting favorable stratospheric wind conditions. We are starting to send status messages through MMotd (the Max Millenium campaign alias). Right now it does not appear that they will actually launch this week, so no special operations are planned. ________________________________#_______________________________ JST Day UT Start Time Pass Table ID Monday PM 13-DEC-99 00:35 1 991213 P1 DIFF Monday PM 13-DEC-99 03:58 3 991213 P3 DARKCAL Tuesday AM 14-DEC-99 04:11 3 991214 P3 STD Wednesday AM 15-DEC-99 04:23 3 991215 P3 STD Thursday AM 16-DEC-99 04:36 4 991216 P4 STD Friday AM 17-DEC-99 03:06 3 991217 P3 STD Saturday AM 18-DEC-99 01:36 3 991218 P3 STD Continuing requests: KSC & SSOC Tohbans: If any KSC passes are likely to be cancelled (for example due to a typhoon) 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.