18 November 1995 L. Acton S. Savy SXT CHIEF OBSERVER REPORT AND TABLE PLAN SXT CHIEF OBSERVER'S REPORT for Week 46: 12-NOV-95 to 19-NOV-95 SOLAR ACTIVITY The week started with very little activity from the Sun, until the appearance of AR... on 16-Nov at the East limb. This active region produced several B-class flares on 16-Nov. The period of strongest activity took place immediately after we began to run a quiet sun table! However, it was not bright enought to damage the CCD. SXT INSTRUMENT STATUS SXT continues to function normally. There was an SEU on 17 November that put SXT into manual mode. SXT was recovered at 15:05 17-Nov-95 UT. CAMPAIGNS No official campaigns in week 46. In week 46 we started an unofficial campaign to obtain deep pfi exposures of the quiet corona near disk center. On Thursday and Friday we will attempt 2 visible orbits each day of PFI-dominant observations to obtain observations of an actve region with 2 second time resolution in a single filter. These data will be used by David McKenzie of U. Delaware for investigation of wave heating of AR loops as part of his PhD thesis research. This campaign will be postponed if there is no appropriate AR on the disk at the time. SEMINARS Ron Moore gave a fascinating seminar on "Coronal Magnetic Eruptions Observed by Yohkoh", in which seven interesting eruptive flares were presented. SXT_CO ERROR On 15 November 1995 the L. Acton pressed the wrong key and sent an entire SXT table to KSC instead of just the changes. This resulted in a loss of one day of SXT observing because such a large table cannot be uploaded in a single pass and SXT HALT was wisely sent by the KSC toban. Perhaps it would be a good idea to change SXTSPT so a different password is required to send the entire table to KSC. SXT TABLE PLAN FOR WEEK 47 (20-NOV-95 to 26-NOV-95) We will start the week with a DKCAL table. On Wednesday we will do a 24 hour CCD bakeout. For Friday we plan PFI dominant observations using ARS2. This week we continue with the terminator program, for which we request preparation and upload of new offpoint OG files. No terminator images will be taken during the CCD bakeout. The provisional SXT Table Plan for the week is as follows: KSC Time (start) in JST Pass Table ID _____________(= UT + 9 hrs)______#_______________________________ Monday 21-NOV-95 01:03 4 951120 P4 ARS1 DKCAL Tuesday 21-NOV-95 23:39 3 951121 P3 ARS1 STD+LONG Wednesday 22-NOV-95 20:33 2 951122 P2 ARS2 CCD BAKE Thursday 24-NOV-95 00:18 4 951123 P4 ARS1 STD+LONG Friday 24-NOV-95 19:29 2 951124 P2 ARS2 HI TIME RES Friday 24-NOV-95 22:54 4 951124 P4 ARS1 STD+LONG Saturday 25-NOV-95 23:14 4 951125 P4 ARS1 STD+LONG Procedure for CCD bakeout: Here is how the CCD bakeout is executed by the KSC toban. Last bakeout was 1-3 March 1995. Wednesday (22-Nov-95) Pass 2 Upload table for CCD bakeout. Pass 3 TEC Off, confirm temperature increase. Pass 4 Heater on, confirm further temperature incerease. Thusrday (23-Nov-95) Pass 2 Heater off, confirm temperature decrease. Pass 3 TEC on, confirm further temperature decrease. Pass 4 Upload standard table. 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. NEW OG COMMANDS REQUIRED FOR SXT TERMINATOR PROGRAM SSOC TOHBAN, please prepare the following offpoint OGs and upload them as soon as possible. ******************************************************************** OG-33 (Decimal) TARGET ANGLE-X -0.0867081 (DEG) TARGET ANGLE-Y 0.0298663 (DEG) BLOCK COMMAND ===> 81 00 F9 E0 01 F3 00 00 -0.443818 -0.104683 COMMAND NAME: S/C W.104 N.443 (offset angles in arcmin) ----- OG EDITOR OUTPUT --------------- NUMBER : 33 NAME : S/C W.104 N.443 1 04-DC-8A ACS: ACP DATA SET+B7 2 04-BC-81 ACS: BC 3 04-BC-F9 ACS: BC 4 04-BC-E0 ACS: BC 5 04-BC-01 ACS: BC 6 04-BC-F3 ACS: BC 7 04-BC-00 ACS: BC 8 04-BC-00 ACS: BC 9 04-DC-11 ACS: BC EXEC +++ ******************************************************************** OG-34 (Decimal) TARGET ANGLE-X -0.0845147 (DEG) TARGET ANGLE-Y 0.0294811 (DEG) BLOCK COMMAND ===> 81 00 FA 07 01 EC 00 00 -0.312214 -0.127796 COMMAND NAME: S/C W.127 N.312 (offset angles in arcmin) ----- OG EDITOR OUTPUT --------------- NUMBER : 34 NAME : S/C W.127 N.312 1 04-DC-8A ACS: ACP DATA SET+B7 2 04-BC-81 ACS: BC 3 04-BC-FA ACS: BC 4 04-BC-07 ACS: BC 5 04-BC-01 ACS: BC 6 04-BC-EC ACS: BC 7 04-BC-00 ACS: BC 8 04-BC-00 ACS: BC 9 04-DC-11 ACS: BC EXEC +++ ******************************************************************** OG-35 (Decimal) TARGET ANGLE-X -0.0788745 (DEG) TARGET ANGLE-Y 0.0290506 (DEG) BLOCK COMMAND ===> 81 00 FA 6D 01 E4 00 00 0.0261962 -0.153626 COMMAND NAME: S/C W.153 S.026 (offset angles in arcmin) ----- OG EDITOR OUTPUT --------------- NUMBER : 35 NAME : S/C W.153 S.026 1 04-DC-8A ACS: ACP DATA SET+B7 2 04-BC-81 ACS: BC 3 04-BC-FA ACS: BC 4 04-BC-6D ACS: BC 5 04-BC-01 ACS: BC 6 04-BC-E4 ACS: BC 7 04-BC-00 ACS: BC 8 04-BC-00 ACS: BC 9 04-DC-11 ACS: BC EXEC +++ ******************************************************************** OG-36 (Decimal) TARGET ANGLE-X -0.0769049 (DEG) TARGET ANGLE-Y 0.0273058 (DEG) BLOCK COMMAND ===> 81 00 FA 90 01 C5 00 00 0.144372 -0.258311 COMMAND NAME: S/C W.258 S.144 (offset angles in arcmin) ----- OG EDITOR OUTPUT --------------- NUMBER : 36 NAME : S/C W.258 S.144 1 04-DC-8A ACS: ACP DATA SET+B7 2 04-BC-81 ACS: BC 3 04-BC-FA ACS: BC 4 04-BC-90 ACS: BC 5 04-BC-01 ACS: BC 6 04-BC-C5 ACS: BC 7 04-BC-00 ACS: BC 8 04-BC-00 ACS: BC 9 04-DC-11 ACS: BC EXEC +++ ******************************************************************** OG-85 (Decimal) TARGET ANGLE-X -0.0714438 (DEG) TARGET ANGLE-Y 0.0281895 (DEG) BLOCK COMMAND ===> 81 00 FA F3 01 D5 00 00 0.472041 -0.205288 COMMAND NAME: S/C W.205 S.472 (offset angles in arcmin) ----- OG EDITOR OUTPUT --------------- NUMBER : 85 NAME : S/C W.205 S.472 1 04-DC-8A ACS: ACP DATA SET+B7 2 04-BC-81 ACS: BC 3 04-BC-FA ACS: BC 4 04-BC-F3 ACS: BC 5 04-BC-01 ACS: BC 6 04-BC-D5 ACS: BC 7 04-BC-00 ACS: BC 8 04-BC-00 ACS: BC 9 04-DC-11 ACS: BC EXEC +++