08 July 1995 D. Alexander SXT CHIEF OBSERVER REPORT AND TABLE PLAN SXT TABLE PLAN FOR WEEK 28 (10-JUL-95 to 16-JUL-95) This week we will only do filament observing when conditions are suitable. Failing the existence of a good filament we will carry out standard ARS1 observing. We will continue to take offpoint terminator images. The observing objectives of this plan are: - Dark Calibration on Wednesday (to allow filament observing on Mon and Tues). - The filament campaign with Mees Observatory. - Take offpoint terminator images. The SXT Table Plan for the week is as follows. PLEASE REMEMBER THAT THIS IS SUBJECT TO CHANGE. Our default mode is ARS1 STD+LONG. An asterisk (*) means that this table will on be uploaded if conditions are suitable. KSC Time (start) in JST Pass # Table ID Comments _____(= UT + 9 hrs)___________________________________________________________________ Monday 10-JUL-95 19:08 5 950710 P5 ARS0 FILAMENT (*) Tuesday 11-JUL-95 12:35 2 950711 P2 ARS1 STD+LONG 11-JUL-95 17:44 5 950711 P5 ARS0 FILAMENT (*) Wednesday 12-JUL-95 14:38 3 950712 P3 ARS1 DKCAL Thursday 13-JUL-95 13:14 3 950713 P3 ARS1 STD+LONG 13-JUL-95 16:40 5 950713 P5 ARS0 FILAMENT (*) Friday 14-JUL-95 13:33 3 950714 P3 ARS1 STD+LONG Saturday NO TABLE UPLOAD ********************** KSC HOLIDAY *************************** 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. The SSOC tohbans, 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 tobans 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. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ SXT CHIEF OBSERVER'S REPORT for Week 27: 03-JUL-95 to 09-JUL-95 Sun was very quiet again this week. We carried out quiet corona observations using the 5 continuous KSC passes on Wednesday, Thursday and Friday. I hope to analyse these data during my remaining weeks at ISAS. We observed a large filament throughout the week in conjunction with the Hawaii group and continued the offpoint terminator program. SOLAR ACTIVITY There is not much to report in terms of activity at the moment. The active regions showed some interesting activity in the form of nice loop structures and there was a small B flare on the 4-July. SXT INSTRUMENT STATUS The SXT has been operating without major problem. There was a single bitmap error this week. FILAMENT OBSERVATIONS A large filament was the target for SXT observations from Tuesday (4-Jul-95) through the rest of the week. Part of this filament disappeared on Wednesday with no noticeable difference in the SXT partial frames (raw data). The segment that remains continues to be monitored. Unfortunately, the Mees Observatory was clouded in on the day the filament changed its appearance and so obtained no data. A problem developed in the MCCD and the Hawaii group have postponed filament observations until it is repaired UPCOMING CAMPAIGN Spartan 201-03 is scheduled for launch on 3 August, followed by deployment 24.5 hours later. It will observe solar corona for 43.5 hours. I reminded the UV team of the availability of SXT daily images at CRL, but we will be contacted for more coordination. I contacted Leonard Strachan re. planning for the Spartan launch. He is currently busy with target simulation at Goddard and will give us details this week. They will be supporting thenorth polar passage of Ulysses and so would like us to point as far north as we can. They will also be selecting isolated streamer targets which we would have better luck with. REFORMATTING PROBLEMS We had several problems obtaining reformatted data this week starting on June 30. The first problem appeared ot be a transmission error between KSC and the Sirius. This was corrected early in the week. An additional problem with the cron jobs on ISASS0 meant a further delay in reformatting the data. This has now be dealt with. MISCELLANEOUS EQUIPMENT NOTES The replacement Mitsubishi colour printer is working well.