SSOC Tohban Report for Week 40 (30 Sep. - 07 Sep. 1996) SSOC: M. Irie and K. Marubashi KSC : S. Watari and K.Nakakubo Meeting Attendance ---------------- Irie, Marubashi, Watanabe, Sawa, Yasuno, Ogawara Hudson, Kahn, Savy, Slater 0. Action Items ------------------- 0.1 A mystery on SXT Table (info from Hara, Watari, and Hudson)/OPEN (1) Table upload on pass 4, 30-Sep: Mismatch between written and read Tables). Repeated WR and RE, same result. KSC sent the Yobi-A command. (2) Table created for uploading on pass 5. WR and RE, similar result came out again (Yohkoh-checking terminal: OK, MS: Mismatch). SXT CTL MANU was sent (should have been SXT HALT OG). (3) Pass 1, 1-Oct: SXT had been in the CTL-AT state (The OP worked). Table WR & RE gave the same result. Final procedure: Replace the SXT Table in MS computer with a table read from YOHKOH, and upload it. The problem settled. (4) Hara_san is working on investigation of the cause of the problem. 1. Solar Activity ---------------- Solar activities were remained low, having been around A-class level through the week (till October 6, with data gap 3-5 October). 2. Standard Operation ---------------- 2.1 SXT Table Uploads --------------- ------------------------------------------------------------ Pass ID Pass # Table ID ------------------------------------------------------------ 960930-0724 4 960930 P4 ARS0 STD+LONG (???) 960930-0827 5 960930 P5 ARS0 STD+LONG (???) 961001-0411 1 961001 P1 ARS0 STD+LONG 961001-0721 4 961001 P4 ARS0 DKCAL 961002-0721 4 961002 P4 ARS0 STD+DIFF 961003-0412 2 962003 P2 ARS0 STD+LONG 961003-0619 4 961003 P4 ARS0 STD+LONG 961004-0619 4 961004 P4 ARS0 STD+LONG 961005-0620 4 961005 P4 ARS0 STD+LONG ------------------------------------------------------------ 2.2 HXT and HXA Calibration --------------- None 2.3 STT timer setting ---------------- The STT timer was set once during this week, pass 3 (2nd operation of 01-OCT-96 JST (961001-0617) 2.4 Spacecraft offset pointings ----------------------------------------------------------------------- OP-Date Time(UT) S/C PTG. OG# Time(UT) S/C PTG. OG# ----------------------------------------------------------------------- 30-Sep-96 06:42:23 W5.12 N.023 85 06:47:11 Normal 32 21:17:03 W5.12 N.023 85 21:21:51 Normal 32 02:08:47 W5.12 N.023 85 02:13:35 Normal 32 01-Oct-96 07:00:31 W5.12 N.023 85 07:05:19 Normal 32 13:29:19 W5.12 N.023 85 13:34:07 Normal 32 21:35:11 W5.12 N.023 85 21:39:59 Normal 32 03-Oct-96 05:58:55 W5.12 N.023 85 06:03:43 Normal 32 07:35:59 W5.12 N.023 85 07:40:47 Normal 32 17:19:27 W5.12 N.023 85 17:24:15 Normal 32 ----------------------------------------------------------------------- 3. Errors and Problems ---------------- 3.1 BCS Errors ---------------- No errors were detected. 3.2 SXT Errors ---------------- A bit-map error was detected at the contact on pass 5 (961004-0723). It was recovered by the Yobi-C command on the same pass. 3.3 A missing software in KSC MS computer On Tuseday and Wednesday, KSC tohbans and Commanders worried about the OPs, because the time of reception was not indicated for each OP. They even consider stopping "OP WRITE" seriously. It turned out later that a software to handle this had been deleted by mistake. 4. DSN Communications ---------------- 4.1 DSN Final schedule for W40 ---------------- No cancellation. 4.2 DSN Final schedule for W41 ---------------- No cancellation. 4.3 DSN Preliminary schedule for W42 ---------------- 32 passes were cancelled. 4.4 DSN Strawman schedule for W43 ---------------- 7 passes were cancelled (Done on Saturday). The cancellation was done only for passes which conflicted with ASCA. This is due to misunderstanding of SSOC W40. 4.5 Data Transmission from DSN ---------------- 252 46 0615 not received Requested 17 Sep. not received Requested 20 Sep. not received Requested 24 Sep. not received Requested 01 Oct. 254 76 0734 not received Requested 12 Sep. not received Requested 18 Sep. not received Requested 24 Sep. not received Requested 01 Oct. 258 76 1034 not received Requested 17 Sep. not received Requested 20 Sep. not received Requested 24 Sep. not received Requested 01 Oct. 264 46 2222 not received Requested 25 Sep. not received Requested 30 Sep. Closed/ same data 04 Oct. 266 74 1616 3% less than expected Requested 24 Sep. 3% less than expected Requested 30 Sep. Closed/ same data 04 Oct. 266 17 0747 not received Requested 25 Sep. Closed/ correct data 04 Oct. 266 17 0929 13% less than expected Requested 26 Sep. 13% less than expected Requested 30 Sep Closed/ correct data 04 Oct. 269 76 2254 not received Requested 01 Oct. Closed/same data 04 Oct 270 76 2248 28% less than expected Requested 01 Oct. 28% less than expected Requested 04 Oct. 275 76 2122 21% less than expected Requested 04 Oct. 5. Yohkoh/ASUKA/AKEBONO Pass Conflicts at KSC ---------------- 2 passes were given to ASCA, and 2 passes to AKEBONO in W40. 4 passes are scheduled to be given to ASCA, and 6 passes to AKEBONO in W41. 6. Special Operations ---------------- 6.1 SOHO-related special observations Two special observations were conducted during Oct. 2-4. The are: (1) Coordinated observations of the large scale loops of an active region that was near the West limb on Oct. 2 and 3. Participating instruments are LASCO, EIT, and CDS on SOHO. Campaign coordinator is Louise Harra. (2) Observations to support a "spectral atlas" measurements by SOHO. SXT used all 5 of its analysis filters on the chosen SOHO target. This special observation was requested by Andrzej Fludra. 7. Holiday Schedule ---------------- The next KSC holiday is Sunday, 13-Oct-1996 JST. 8. Hikitsugi Items ---------------- 8.1. Tohbans for W41 ---------------- SSOC: Yoshimura and (Yasuno) KSC: Nakakubo and Ichimoto 8.2. STT Timer setting ---------------- The next setting is due on Pass 2, Tuesday, 8-Oct-96 JST. 8.3 Today's Operations. The OP for today (to be uploaded around 12:30 UT Monday) and the corresponding command sheets already were checked by KSC tobans on Friday. The operation does not have anything special. 8.4 Sirius Data Nothing to report. 8.5 OP_first_guess ---------------- Recall the warning from the previous reports. The op_first_guess fails to switch the KSC LOS quiet high (QT HI) to the medium (QT ME) mode of OP plan in the next day operation when KSC pass2 is cancelled. Tohbans should pay attention to this when checking the OP and change it manually. New Bug report!! (Week 39, Shimojo) The op_first_guess fails to include SXT CAMP OBS in quiet medium for SAA zone. Tohban should change the rate mode or delete SXT CAMP OBS operations. 8.6 Week-35-A/I-1 /Ogawara/ status: OPEN Prof. Ogawara will ask Fujitsu to check the health of S-3500 located at KSC, because of the increased number of the problems. Week-35-A/I-3 /Shimizu, Hara/ status: OPEN The workstation flare 5 currently located at SSOC should be returned to KSC for operational use. The failed display of the flare 5 currently located at KSC should be sent to SSOC for repair. 8.7 Week-39; /ISAS SSOC Network person /CLOSE We received 6 FAXs from DSN operation chief. These Faxs is that " They have lost communication with your Gateway Process. Our technicans have verified that our support equipment ans communications lines are working correctly. Please check your gateway equipment. The OUTAGE Began at : 268/20:00, 269/10:20, 269/16:44 " Now, Saitoh_san(NInomiya_ken) had already recovery on Monday. 8.8 Schedule for Week 43 When discussing the schedule for KSC contacts in W43, Ishida_san didn't have enough information about AKEBONO's schedule plan. Thus the negotiation was done only between ASCA and YOHKOH. This may affect the YOHKOH operation schedule. (W40 SSOC) Due to our misunderstanding, we cancelled only passes that conflict with ASCA for Week 43 Strawman schdule. SSOC tohban for Week 41, please send message on additional cancellation to DSN, if possible. 8.9 Mismatch of pass ID number between MS at KSC and SSOC KSC reported a problem of mismatching between pass ID numbers from SSOC and those given by MS computer at KSC. SSOC should know that "op_first_guess" can give us pass ID numbers different from those in the Visible Diagram, and be carefully check the pass ID when preparing OPs and Command Sheets. The Pass ID in Visible Diagram is the right one that should be used in operations.