================================================================= ++=============================================================++ || SSOC Tohban's Report for Week 50 (8 Dec 1997 - 14 Dec 1997) || ++=============================================================++ ================================================================= SSOC : M.Sawa and S.Tanuma KSC : H.Tonooka and M.Torii 0. Meeting attendance (in alphabetical order): Hara, Kahn, Kosugi, Sawa, Shinohara, Tanuma, Watanabe and Weber 1. Solar Activity Solar activity continued to be moderate. The GOES X-ray level was at under-C except Friday, which saw several C-class flares. 2. Standard Operation: 2.1 SXT Table Uploads: The following 9 SXT tables were uploaded last week. ---------------------------------------------------------------- JST Day UT Start Time Pass Table ID ================================================================ Mon *** *** No SXT Table Upload *** *** Tue:AM 08-DEC-97 20:37 4 971208 P4 ARS1 DARKCAL Tue:PM 09-DEC-97 17:28 3 971209 P3 ARS0 JET 09-DEC-97 19:12 4 971209 P4 ARS1 STANDARD 10-DEC-97 16:04 2 971210 P2 ARS1 DK-FFIS Wed 10-DEC-97 17:47 3 971210 P3 ARS0 JET 10-DEC-97 19:30 4 971210 P4 ARS1 STD+DIFF Thu 11-DEC-97 16:22 3 971211 P3 ARS1 STANDARD Fri 12-DEC-97 14:57 2 971212 P2 ARS1 DK-FFIS 12-DEC-97 16:40 3 971212 P3 ARS1 STANDARD Sat *** *** No SXT Table Upload *** *** Sun *** *** No SXT Table Upload *** *** ---------------------------------------------------------------- 2.2 STT timer setting: ------------------------------------------- Operation JST Day Pass ID =========================================== Timer Set 09-DEC-97 971208-1135 Timer Stop 10-DEC-97 971210-1033 Next Timer Set 15-DEC-97 971216-0826 ------------------------------------------- We set STT timer at 2nd pass on Dec. 9th (JST), and stopped it on 10th (JST) when Canopus was temporarily occulted. The next setting should be done on Dec. 15th (JST). 2.3 HXT, BCS, and WBS calibration HXT calibration was done 4 times, and the gain adjustment was done successfully. ----------------------------------------------- JST Day pass pass ID operation =============================================== Tue(1) 2 971208-1135 gain adjustment Tue(2) 2 971209-1132 calibration Wed 2 971210-1033 calibration Thu 4 971211-1137 calibration ----------------------------------------------- 3. Errors and Problems 3.1 BCS Errors and Problems: 3 BCS errors were found and recovered successfully. ---------------------------------------------------------------- JST Day pass pass ID error pass to recover ================================================================ Tue(1) 1 971208-1031 BCS memory checksum 1 and 2 Tue(2) 3 971209-1135 BCS memory checksum 3 Thu 3 971210-1136 BCS memory checksum 3 ---------------------------------------------------------------- 3.2 SXT Errors and Problems: 1 Bitmap error was found and recovered at 1st pass on Dec. 9th (JST). -------------------------------------------------------------- JST Day pass pass ID error pass to recover ============================================================== Tue(1) 1 971208-1031 Bitmap 1 -------------------------------------------------------------- 4. DSN Communications: 4.1 DSN Schedule Passes are deleted by DSN and SSOC Tohbans as follows. ------------------------------------------------- DSN Schedule Week Deleted Passes ================================================= Final W50 2 by DSN Final W51 6 by DSN Preliminary W51 2 by DSN Preliminary W52 9 by SSOC Strawman W01 75 by SSOC ------------------------------------------------- 4.5 Data Transmission from DSN: (/home/flare1/yohkoh/dsn_corrupt/97_50) 335 76 0849 corrupted tape Requested 09 Dec. 336 66 0416 corrupted tape Requested 09 Dec. Closed/ correct data 337 16 1424 not received Requested 09 Dec. Closed/ correct data 5. KSC Pass Conflicts and Schedule 5.1 YOHKOH/ASCA/AKEBONO/HALCA Pass Conflicts at KSC: None. 6. Hikitsugi Items (Same as last week's SSOC Report except for 6.4) 6.1 Requests from DSN Please remove Diem Tu from the distribution list and add Ben-Zion Bienstock. Note: Ben-Zion Bienstock seems to be lack of a good address (W48 tohbans). 6.2 Mainframe operation schedule between the end of this year and the beginning of next year The mainframe will stop for maintenance between 9:00 and 16:00 (JST) on 21 December 1997. It will go to auto-operation mode after 7:00 (JST) on 30 December 1997. It will start again at 11:00 (JST) on 4 January 1998. 6.3 Bug in op_first_guess SSOC tohbans should be aware of a bug in op_first_guess: "% OP_START_END: Problem with detection of LOS/AOS/DSN Repro Events" appears when we have close enough contacts (more than two downlinks in an orbit). We avoided the problem, when using op_first_guess, by responding to "Change any standard op_first_guess options?" by choosing yes, then in response to "Enter BDR optimization (1 or 2), by choosing 1. 6.4 Tohbans for W51 SSOC : N.Shinohara and T.Watanabe KSC : M.Torii, M.Takahashi and S.Masuda 6.5 OP and Command Sheet Status The command sheets and the OP for Monday (15-Dec-97) have been created, checked, and transferred to KSC. 6.6 STT timer setting STT timer setting is due on 16th Dec, Tuesday. 6.7 Holiday Schedule: The next holiday will be Sunday, Dec. 21st. 6.8 New Versions of English Tohban Manual and Tohban Checksheet The English language versions of the YOHKOH tohban manual and the tohban check sheet were updated on Nov 17. Among the changes are additions of discussions about the stt_plot and print_op routines. The check sheet has also been updated to reflect the page numbers in the new version of the manual. As always, tohbans are requested to write changes and indicate corrections in the manual so that they can be input the next time the manual is updated. ----From W47 tohban reports------------------------------------------ In addition to the standard mainframe terminal, it is also possible to use the mainframe emulator on flare20 instead of the mainframe terminal for some situations: flare20% telnet mainf1 17 s88239 ex op(opognew) PF3 is {Esc}3 PF4 is {Esc}4 etc. -------------------------------------------------------------------------- 6.9 Sirius Data Nothing to report. 6.10 Suggestion to DSN selection rule: mail from JPL ----Quoted from the previous week's report ------------------------------- I understand that you access RASM and choose the passes that are made available to you. We would like you to use the Wallops (WFF) passes as much as possible. In other words, if a pass from one of the DSN sites (Goldstone, Madrid or Canberra) can be substituted by a WFF pass, please use the WFF pass and delete the DSN pass, instead of vice versa. Please understand we are not asking you to give up any coverage but if the same coverage can be accomplished by using WFF instead of the DSN, we would like you to do so. (Albert Chang) -------------------------------------------------------------------------- 6.11 Status of Wallops handover (W48) Hudson exchanged e-mail with Rick Jones. We are still waiting for ftp access to the Wallops scheduling database. 7. Action Items (Same as last week's SSOC Report) 7.1 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. 7.2 Week-48-A/I-1 /Hudson/status AJAR. Hudson has fixed print_ogsel (Week 48). Upon editing the OG's, this command from IDL will print the edited OG item on the workstation printer in B-toh. PRINT_OGALL still does not work well. Hudson will fix it next. After the corrections are made, these procedures should be incorporated into the tohban manual. 7.3 e-mail communications We rely upon e-mail more and more. For operations-related e-mail, it's hereby suggested that we make it a rule to ACKNOWLEDGE the receipt of any such e-mail message. This applies particularly among SSOC, SXT_CO, KSC and SXT_ST. 7.4 Long Range Schedule Arrangement (W49) Since the launch of HARUKA, the KSC tracking facilities have been running in operation nearly twenty four hours a day. No time has been available yet for maintenance this year. NEC and MELCO are planning to reserve a pair of two-week periods for maintenance with both of these two-week intervals occurring before the end of March 1998. The work requires six consecutive hours each day. Candidate periods; 17-31 of January and 16-31 of March During these periods, we will perhaps ose one contact per day at KSC. Also, Planet-B will be launched next summer. In spite of the fact that Planet-B is a Japanese mission, it will be launched during summertime; its launch window starts July 4, 1998 for the mission to Mars. During the flight operation (lasting for the twenty six days before the launch window begins), the KSC 20-meter antenna system will be used. After the launch, Planet-B will be tracked by the USD 64-meter and the newly (to be) installed KSC 34-meter antenna. Tracking scheduling during the Planet-B flight operation interval will be negotiated among the five teams namely: AKEBONO, YOHKOH, ASCA, HALCA and Planet-B (in March, perhaps). Tetsuya WATANABE (NAOJ) 7.9 Off pointing (From SXT_CO: Weber san) If no off-pointing is planed in the current week (see SXT cheif observer's report), there is no need for SSOC tohbans to ask SXT_CO whether or not offpoint should be added to the every day's command sheet. -- end of report -----------------------------------------------------------