SSOC Tohban's Report for Week 38 ( 14-20 Sep 1998) SSOC : Yoshida, Nakajima KSC : Nagata, Yamaguchi 0. Meeting Attendance Yoshida, Hudson, Sterling, Wuelser, Ogawara, Kosugi, Watanabe, Aoki, Shimizu ---------------------------------------------------------------------------- 1. Solar Activity Solar activity was not low with many C-class flares. One big active region is around the east limb on Sunday 20-Sep-98. The actitvity will be higher this week (w39). ---------------------------------------------------------------------------- 2. Standard Operations 2.1 SXT Table Uploads The following SXT tables were uploaded last week. ----------------------------------------------------------------- JST Day UT Start Time Pass Table ID ================================================================= Monday 14-Sep-98 06:06 3 980914 P3 ARS1 DARKCAL Tuesday 15-Sep-98 01:17 1 980915 P1 ARS2 SPOT Tuesday 15-Sep-98 06:24 4 980915 P4 ARS1 STD Thursday 17-Sep-98 03:22 2 980917 P2 ARS2 SPOT Thursday 17-Sep-98 06:59 4 980917 P4 ARS2 DIF Friday 18-Sep-98 02:08 2 980918 P2 ARS2 SPOT Saturday 19-Sep-98 02:25 2 980919 P2 ARS1 STD ----------------------------------------------------------------- 2.2 STT timer setting STT timer was set during pass 2 (980915-0206) on 15-Sep (Tue). ----------------------------------------------------------------------------- 3. Errors and Problems 3.1 BCS Errors No error. 3.2 SXT Errors Bitmap Error occurred at pass 980917-0204. It was cleared at the same pass with Yobi command C. ---------------------------------------------------------------------------- 4. Special Operations None. ---------------------------------------------------------------------------- 5. DSN Communications 5.1 DSN Schedule Passes were added/deleted as follows. ------------------------------------------------------------------- DSN Schedule Week Schedule Changes =================================================================== Final W38 0 passes deleted Final W39 8 passes deleted by SSOC Preliminary W40 0 passes deleted Strawman W41 115 passes deleted by SSOC ------------------------------------------------------------------- 5.2 Data Transmission from DSN (Refer to /home/flare1/yohkoh/dsn_corrupt/98_38) 234 66 0203 not received Requested 25 Aug no response 26 Aug no response 28 Aug Closed/ NO DATA RECORDED 249 76 2008 corrupted tape Requested 11 Sep Closed/ correct data received (14-Sep) 250 76 2208 corrupted tape Requested 11 Sep Closed/ correct data received (14-Sep) 250 76 2349 corrupted tape Requested 11 Sep Closed/ correct data received (14-Sep) 251 76 0132 corrupted tape Requested 11 Sep Closed/ correct data received (14-Sep) 252 76 2241 corrupted tape Requested 16 Sep 253 76 0024 corrupted tape Requested 16 Sep 253 76 1934 corrupted tape Requested 16 Sep ---------------------------------------------------------------------------- 6. KSC Pass Conflicts and Schedule In week 39, 2 passes will be given to ASCA. --------------------------------------------------------------------------- 7. Hikitsugi Items 7.1 Tohbans for week 40 (21 - 27 Sep) SSOC : Shimizu, Aoki KSC : Takahashi, Yamaguchi 7.2 STT timer setting STT timer setting is due on Tuesday 22-Sep. 7.3 Holiday Schedule The holiday during week 39 will be on 27-Sep-98 (Sun), JST. 7.4 OP status. The OP and Command Sheets to be uploaded Monday morning have been prepared. 7.5 Manual and Checksheet A new version of the English Tohban Manual was generated during week 98_36, along with a corresponding new Tohban Checksheet. The new (and all future) Tohbans are requested to note any changes or mistakes in the manual, and to notify A. Sterling of any changes. If the changes involve the DSN procedures or the ~yohkoh/wallops/README file, Hugh Hudson san should also be notified. Current Version Yohkoh Tohban Duties Manual rev. 4-Sep-98, A. Sterling README(Manual for Wallops/DSN Operation ver. 5.1 18-Sep-98 H. Hudson 7.6 Some Problems in OP_FIRST_GUESS In some cases, OP_FIRST_GUESS fails to pick up DSN passes. (See Section 8.4 and 8.5) Tohbans should check OPs and DSN schedules carefully. ---------------------------------------------------------------------------- 8. Action Items 8.1 Further software development. Status CONTINUING. It would be greatly appreciated if the SSOC tohbans could recommend any software development that they think will save future tohbans time and which improves the reliability of their work. 8.2 Week-36-AI-1 / "ADD_DSN.PRO" / Hudson / status Closed New software (14-Sep-98) now makes it possible to request adding a pass. --- Quote from W36-98 SSOC Report --- It would be helpful to have an "ADD_DSN.PRO" code (modeled on cancel_dsn) to simplify the procedure for making pass addition requests. ---------------------------------------------------------------- 8.3 Week-48-A/I-1 /Hudson/status AJAR. PRINT_OGALL still does not work well. Hudson will fix it next. 8.4 Week-37-98-AI??-1 / "Possible OP_FIRST_GUESS Problem." / ?? / status ?? --- Quote from W37-98 SSOC Report --- OP_FIRST_GUESS failed to pick up a couple of passes from the solass.w37 DSN schedule last week. Here is an example: . . . 251 2159 2224 2238 2248 DSS-76 SOL R TKG PASS 8036 xxxxxx- xxx *---------- *WED 09 Sep *---------- 252 2342 0007 0020 0030 DSS-76 SOL R TKG PASS 8037 xxxxxx- xxx 252 0125 0150 0201 0211 DSS-76 SOL R TKG PASS 8038 xxxxxx- xxx 252 1852 1917 1929 1939 DSS-76 SOL R TKG PASS 8049 xxxxxx- xxx In this case, the missed pass was the one beginning at 0007. The problem seems to be that the DSN START time and the BOT times are for different DOY dates. We edited the solass.w37 file so that this line read: 251 2342 0007 0020 0030 DSS-76 SOL R TKG PASS 8037 xxxxxx- xxx OP_FIRST_GUESS then was able to pick up this pass. The other pass that OP_FIRST_GUESS missed had a similar form and was handled in the same way. We notified Jim Lemen of this problem. He hopes to look into this problem over the next couple of months. In the meantime, Tohbans will have to be on the lookout for this sort of problem. (Thanks go to Asizawa-san, who first noticed the missing pass even though he is "green" and was working alone at KSC.) We wonder if this problem has occurred in the past?? ---------------------------------------------------------------- 8.5 Week-38-98-AI??-1 / "Possible OP_FIRST_GUESS Problem 2." / ?? / status ?? Although the newest version of DSN final schedule is ./solarss.w39.1 , the OP_FIRST_GUESS uses ./solarss.w39 . This problem is not severe but better to be fixed. === END ===