25 July 1998 Hugh Hudson SXT TABLE PLAN FOR WEEK 98_30 (revised) (27-Jul-98 - 2-Aug-98) SXT Chief Observer: Nitta A Hida Observatory emerging-flux campaign begins 29-July and the Whole Sun Month II campaign begins 1-Aug. These make use of PFIs and FFIs, respectively, so we can do them both at once. ________________________________#_______________________________ JST Day UT Start Time Pass Table ID Saturday 25-JUL-98 02:57 1 980725 P1 ARS1 STANDARD Monday 27-JUL-98 06:58 4 980727 P4 ARS1 DARKCAL Tuesday 28-JUL-98 05:32 4 980728 P4 ARS1 STD DIF Thursday 30-JUL-98 00:59 1 980730 P1 ARS2 HIDA Thursday 30-JUL-98 04:24 3 980730 P3 ARS1 STANDARD Friday 31-JUL-98 23:35 1 980730 P1 ARS2 HIDA2 Friday 31-JUL-98 04:42 4 980730 P4 ARS1 STANDARD Note that this plan may change during the week. Orbit precession means that we have table naming confusion again - the convention is, the UT date of pass #1 determines the SXT table ID. 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). SSOC Tohban: On the weekly visible diagram, please mark the official five passes first and then cross out those passes that will be given to other satellites. That way we can keep the numbering straight in the Yohkoh software system. SSOC Tohban: SXT operations do not currently include terminator off- pointing. It is unnecessary this week to ask the SXT Chief Observer for terminator off-pointing information. KSC Tohbans: In general flare mode supersedes table upload, ie 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.