29 January 1995 James Lemen SXT CHIEF OBSERVER REPORT AND TABLE PLAN SXT CHIEF OBSERVER'S REPORT for Week 04: 22-JAN-96 to 28-JAN-96 SOLAR ACTIVITY The Sun was quiet all last week with no major flares. At the end of the week a new active region appeared at the east limb: NOAA 7943. SXT INSTRUMENT STATUS No significant SXT errors occurred. SXT continues to function normally. There was a bitmap error on 22-Jan-96 at Pass 1 (960122-0412). CAMPAIGNS There were no specific campaigns during the week. We will resume filament campaigns when a suitable target emerges. SEMINARS There was no seminar this week because of the Hitachi meeting. COMPUTER REPORT FROM LINFORD The links and Yohkoh databases on ISASSN (0 and 1) machines were reorganized last week. Many of the links and mount mounts were changed as a result of making the directory structures simpler (e.g. a single Yohkoh directory tree instead of a tree with yohkoh_a and yohkoh_b branches). As a direct result of this action two of the "yd" links were removed (/yd0 and /yd8). These will be used later with the new 9Gb disk that Sakao san has ordered for the isassN workstations. Also, several of the Yohkoh databases were moved in preparation for these new large disks. The Yohkoh environ- mental variables have been updated to reflect the new locations of these databases. I hope that these moves and changes didn't cause too much trouble. I thank Kano san for helping on these changes. G.A. Linford PROBLEM WITH FILE TRANSFER TO KSC The SXT file transfer to KSC failed on 23-Jan-1996. Sterling san and I went to see Shuto san and to inform him about the problem. Apparently, the computer as KSC was in a "shutdown-state for a while to clear it's memory and to prepare next pass" according to the KSC tohbans. Fortunately, Hori san noticed the problem and called the SXT CO shortly before the pass. The table was retransmitted and successfully loaded. The former system whereby the SSOC tohban checks of the printer on the B-tou 3rd floor printer would have detected this transmission failure. RASM I checked with Steve Waldherr about access to the the JPL DSN http directory for the DSN schedules. Currently, it is only possible for flare20 to access the DSN schedules. Steve contacted Brent Burgess, the JPL DSN computer manager, and Brent agreed to add isass0 to the access list. This will provide a backup for DSN scheduling operations. During the coming week I plan to set up a cron job to automatically obtain strawman, forecast and weekly files, thus eliminating the need to use the RASM system to RECEIVE schedules. It will still be necessary to use RASM to SEND deletion requests until we can figure out how to accomplish this function using the WWW server. NEW ISAS MAINFRAME PLANS Last Thursday, there was a meeting which involved Hara, Shuto, Hudson, Lemen, Savy and three individuals from Fujitsu. We mainly discussed the impact on data transfer between the mainframe computers and the workstations. A brief summary of affairs: 1. Shuto san will make sure that all JOINT-NET routines are functional. This includes srsget, srspas, traj files and orbital elements (for Yohkoh and ASCA). 2. ATTLOG_COPY will have to be done using a trusted workstation. Currently, this is done by isass0, but this will have to be changed to an, as yet, unnamed workstation (flare20?). 3. ADSFTP will continue to work as it does now, but the IP address will change, since the files are located on a project volume which has lower security. 4. op_first_guess file transfer: I think this is being investigated and outcome has not been determined. SXT TABLE PLAN FOR WEEK 05 (29-JAN-96 to 5-FEB-96) On Tuesday we will do a DKCAL table. We will continue to track the active region using ARS1. If this region dies, we will switch to a plan to make PFI observations at the north polar limb with full-resolution. This will correspond to one part of the Mees cardinal stripes program. If a suitable filament appears, we will make that the target of opportunity. The standard FFI diffuser images (both low8 and compressed) will be taken on Wednesday as part of a standard table. This week we continue with the terminator program, but no new OG's need to be prepared. The provisional SXT Table Plan for the week is as follows: KSC Time (start) in JST Pass Table ID _____________(= UT + 9 hrs)______#_______________________________ Monday 29-JAN-96 13:24 2 960129 P2 ARS1 STD+LONG Tuesday 30-JAN-96 13:43 3 960130 P3 ARS1 DKCAL Wednesday 31-JAN-96 14:02 3 960131 P3 ARS1 STD+DIFFU Thursday 01-FEB-96 14:22 3 960201 P3 ARS0 STD+LONG Friday 02-FEB-96 11:14 2 960202 P2 ARS0 STD+LONG Saturday 03-FEB-96 13:17 4 960203 P4 ARS1 STD+LONG *** Please note that this table plan may change *** Procedure for CCD bakeout: Here is how the CCD bakeout is executed by the KSC toban. Last bakeout was 22-23 November 1995. Friday ( 2-Feb-96) Pass 2 Upload table for CCD bakeout. Pass 3 TEC Off, confirm temperature increase. Pass 4 Heater on, confirm further temperature increase. Saturday ( 3-Feb-96) Pass 2 Heater off, confirm temperature decrease. Pass 3 TEC on, confirm further temperature decrease. Pass 4 Upload standard table. 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. 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 use.