Revised Version after WOM SSOC Tohban Report for Week 15 (April 12 - 18), 1993 SSOC tohbans: T.Shimizu, G.Linford, R.Kano(Mon) KSC tohbans: A.Takeda, H.Fukushima, H.Hara(~Mon) 0. General The collaborations with NIXT and SPARTAN were carried out successfully. KSC had a holiday on 13 Apr (Tue) instead of 11 Apr (Sun) because of NIXT and SPARTAN. Solar Activity is extremely low. The GOES background level became below B1 on 16 Apr. The Yohkoh, however, detected 2 flares (C8.9 06UT 11-Apr, C1.2 0920UT 15-Apr) in this week. 1, Special Operations 1.1, SPARTAN observation The Yohkoh action for SPARTAN observation is as follows: 11 April, Pass1 (930411-0516) S/C offset to ~4' east SXT TBL upload (SPARTAN OBS1) 4 (930411-0826) S/C offset to ~5' west SXT TBL upload (SPARTAN OBS2) 12 April, Pass3 (930412-0724) S/C offset to normal point 1.2, NIXT observation The Yohkoh action for NIXT observation is as follows: 12 April, Pass2 (930412-0620) SXT TBL upload (NIXT OBS SEQ) 3 (930412-0724) SXT TBL upload (NIXT UPDATE ) 4 (930412-0827) OP upload (930412-0827 OP NIXT2) The FFI pictures taken during the collaboration time: 12-APR-93 17:09:57 QT/H Open /Al.1 Half Norm C 23 2668.0 512x512 12-APR-93 17:11:21 QT/H Open /AlMg Half Norm C 15 168.0 512x512 12-APR-93 17:13:19 QT/H Open /AlMg Half Norm C 25 5338.0 512x512 12-APR-93 17:15:37 QT/H Open /AlMg Half Norm C 30 30208.0 512x512 12-APR-93 17:17:47 QT/H Open /Al.1 Full Norm C 31 42718.0 1024x256 12-APR-93 17:19:53 QT/H Open /Al.1 Full Norm C 27 10678.0 1024x256 12-APR-93 17:21:59 QT/H Open /Al.1 Full Norm C 17 338.0 1024x256 12-APR-93 17:24:11 QT/H Open /Al.1 Half Norm C 28 15108.0 512x512 12-APR-93 17:26:07 QT/H Open /Al.1 Half Norm C 13 78.0 512x512 12-APR-93 17:28:19 QT/H Open /Al.1 Half Norm C 23 2668.0 512x512 12-APR-93 17:30:33 QT/H Open /Al.1 Full Norm C 31 42718.0 1024x256 1.3, STT Timer Set STT timer set was done on 12 April, Pass3 (930412-0724). Because of Canopus eclipse, we made STT timer disable on 15 April, Pass2 (930415-0515). STT timer will be available around 22 April. Please have a confirmation. 1.4, SXT Table Upload 11 April, Pass1 (930411-0516) 930411 T1 P2 SPARTAN OBS1 4 (930411-0826) 930411 T2 P4 SPARTAN OBS2 12 April, Pass2 (930412-0620) 930412 T1 P3 NIXT OBS SEQ 3 (930412-0724) 930412 T2 P3 NIXT UPDATE 14 April, Pass1 (930414-0515) 930414 T1 P1 CAL SEQ TEST 4 (930414-0825) 930414 T2 P4 ARS1+LONG 1.5, Error 17 April, Pass1 (930417-0310) SXT Bit Map Error 2, Troubles and Problems 2.1, Sickness of ISASS0 ISASS0 became sick on Tuesday. Then we could not use op_first_guess to make a preliminary OP for Wednesday, because Yohkoh IDL software under ISASS0 was not available. I prepared this OP on the mainframe by hand. ISASS2 has a backup of IDL yohkoh softare to protect such a trouble. It, however, did not work well. This is serious problem in the operation. (discussion) The backup system on ISASS2 will be improved by Freeland-san. ISASS0 and ISASS2 should get the power supply independently. 2.2, Flare1 printer toner Flare1 printer gives blurred prints. Kano-san has ordered new toners to Fujitsu Supply Co. The new toners will come today (Monday). 2.3, Tohban Organization (My comment) I was a lonely SSOC tohban last week. Linford-san had to concentrate the repair of sick ISASS0. This is no problem. The problem is that he was a SSOC tohban, though he had to leave Japan on Friday. I would like to ask tohban organizers to make me do tohban duty WITH BEGINNERS in order to train them. The most serious problem in Yohkoh tohban system is not man power, but number of experts. I could not have oppotunity to train a beginner last week. (discussion) Kosugi-san, Watanabe-san, Tsuneta-san, and Shibata-san have discussions to improve the tohban system and organization. 3, Hikitsugi 3.1, OPOG editor replacement The replacement of OPOG editor will be done on 22 Apr (Thr), to increase its security. OPOG editor will not be available in the morning (9:00 ~ 12:00 JST) on 22 Apr. Do not touch all the files under SR0001 during the period. 3.2, Power Stoppage at KSC There is a power stoppage at KSC on 25 Apr (Sun), which does not affect Yohkoh operation. NEC people at KSC have already known this information. I have already asked KSC tohbans to shutdown flare5 workstation during the period. 3.3, DSN operation We have not received the following data yet. Then I have asked JPL to retransmit the data. Day 99 0150 - 0159 Dss-46 Day 99 0333 - 0341 Dss-46 We should have a discussion about DSN scheduling item with Lemen-san now. (discussion) Lemen-san will have a minar meeting on 21 Apr.(Wed) with Ogawara-san, Kosugi-san, Watanabe-san and so on. In the meeting, details of DSN scheduling item will be discussed. 4, Homeworks in the previous meeting 4.1, Mainframe(SSOC #1) operation (Kosugi) Shuto-san is now constructing the system that SSOC#1 mainframe is active during the Yohkoh/Asca operation without tohbans' care. This item is not closed. SSOC tohbans should have one terminal ON during the operation in this week. 4.2, Improvement of Tohban Manual (Watanabe, Kosugi) Watanabe-san reviewed the current tohban manual last week. He suggested the text files of tohban manual are stored in the PC computer at B-toh. This item is not also closed. 5, This week's operation 5.1, Tobans' name SSOC tohbans : ?.Sawa, K.Shibata KSC tohbans : H.Fukushima, ?.Choi (Univ. of Tokyo) 5.2, Special Operation 20 Apr(Tue) HXT Calibration HXT Gain Revision 5.3, Future special operation (not this week) a), OG address rearrangement (proposed by Hudson, studied by Kosugi) b), SXT: Straylight Calibration (proposed by Hudson and Bruner) c), SXT: Collaboration with Hida Obs. (proposed by Kurokawa, but we do not know details.) d), SXT: collaboration with Moodon(?). (proposed by Lidia, but we do not know details.) End of Report