14 August 1995 M. Weber SXT CHIEF OBSERVER REPORT AND TABLE PLAN SXT TABLE PLAN FOR WEEK 33 (14-AUG-95 to 20-AUG-95) The only coordinated campaign planned for this week is to assist Hawaii in looking for filament eruptions. The observing objectives of this plan are: - Standard filament observing table for half of the week. - Dark Calibration on Tuesday. - Continuation of terminator-offpointing campaign. The SXT Table Plan for the week is as follows: KSC Time (start) in JST Pass Table ID Comments _____________(= UT + 9 hrs)______#_______________________________ Monday 14-Aug-95 22:09 3 950814 P3 ARS0 FILAMENT Tuesday 15-Aug-95 20:46 2 950815 P2 ARS1 DKCAL Wednesday 16-Aug-95 19:22 2 950816 P2 ARS1 STD+LONG Thursday ************ NO TABLE UPLOAD PLANNED ************* Friday 18-Aug-95 20:01 3 950818 P3 ARS0 FILAMENT Saturday 19-Aug-95 18:37 2 950819 P2 ARS0 FILAMENT Terminator-Offpointing: The terminator-offpointing program will continue this week. The SSOC tohbans are required to manually insert the off-point OGs for the terminators in the OP tables. SSOC TOHBAN, please fax the preliminary OP list to D-tou when it contains a terminator so that the Chief Observer can suggest which OG's to be used. Dumping Patrol images: We request that KSC tohban continue to dump a patrol image each time an SXT table is loaded to facilitate the study of optimizing ARS parameters for an awfully quiet period. /// KSC and SSOC TOHBAN PLEASE NOTE: \\\ \\\ THIS TABLE PLAN IS SUBJECT TO CHANGE. /// The SXT Chief Observer sees one possibility in particular this week. - The FILAMENT tables and STD+LONG tables may be re-arranged depending upon observing conditions and/or new information from our collaborators in Hawaii. This means that an SXT Table ID may change within a day of the upload. HOWEVER, the SXT Chief Observer shall try to give the tohban EXTRA WARNING if the PASS # is to be changed. ____________________________________________________________________ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ SXT CHIEF OBSERVER'S REPORT for Week 32: 07-AUG-95 to 13-AUG-95 Sun very quiet again this week. No special operations this week, except for some filament observations. Continued to concentrate on obtaining terminators with OG 85 (E08 S17) in all SXT filters, although there was a frustrating lack of opportunities. It was decided at the Weekly Operations Meeting for Week 32 that there will be NO Weekly Operations Meeting until Mon. 21, August. (I.e., skip Mon.14, Aug.) SOLAR ACTIVITY There is not much to report in terms of activity at the moment. GOES data indicates that the Sun breached B-level activity only a few times this week. Active regions {AR7894, 7895, 7896} rotated behind the limb, just as a new region is appearing on the east limb. The emission of the quiet corona is so depressed that on SXT images one might think that there was a very extended coronal hole covering much of the disk. SXT INSTRUMENT STATUS The SXT has been operating without any problem. In fact, there have been no SXT Errors in KSC operations since last month! ^^^^ FILAMENT OBSERVATIONS SXT assisted Hawaii with filament observations this week, with yet another near-success. An observing region at S14.8 W37.9 (1x2 PFI) was aimed at a filament which (barely) erupted an hour or so before the observing commenced. The SXT Chief Observer was reassured that it was a good attempt. SXT Table [950812 P2 ARS0 FILAMENT] was uploaded Saturday evening to run until Monday evening. However, the alert KSC tohban noticed that during QT/MED rate, the PFI coordinates reverted to those from the LAST time filament observing was done. The SXT CO found that the QT/MED PFIs referred to a different OBN for their coordinates than the QT/HI PFIs. It was decided to upload a "Standard" table on Pass 5 Saturday evening, since there would be no more KSC passes until Monday evening. This was accomplished successfully. UPCOMING CAMPAIGNS - SPARTAN Spartan 201-03 launch delayed until "late August". Our observing plan will change depending on exact launch date. - POLAR RAY CAMPAIGN The Yohkoh team has accepted a campaign proposal from Koutchmy-san and Hara-san to "Identify and deduce relevant parameters of small scale features seen at high temperature in polar regions at time when polar faculae are still active." The dates of this campaign will be determined by the proposers and the SXT Chief Observer. PERSONNEL - The present complement of noble, undaunted scientists remained constant this week. SEMINARS - There were no talks this week.