==================================================================== ++================================================================++ || SSOC Tohban's Report for Week 52 (22 Dec 1997 - 4 Jan 1998) || ++================================================================++ ==================================================================== SSOC: Y. Kato, T. Kosugi KSC : S. Masuda, J. Sato 0. Meeting Attendance (in alphabetical order): (( This is a tentative report written on 27 December 1997. I'm circulating this in order to have a good continuation of the opeation between 1997 and 1998, because unfortunately I'll not be able to attend the first WOM in 1998. TK )) 1. Solar Activity Solar activity is moderatelly low, but exhibiting C-class flares on Monday, 22 December and Friday, 26 December. 2. Standard Operation: 2.1 SXT Table Uploads: The following SXT tables were uploaded last week. ---------------------------------------------------------------- JST Day UT Start Time Pass Table ID ================================================================ Mon *** *** No SXT Table Upload *** *** Tue 23-DEC-97 13:10 3 971223 P3 ARS1 STANDARD Wed 24-DEC-97 13:28 4 971224 P4 ARS0 DARKCAL Thr 25-DEC-97 10:21 3 971225 P3 ARS1 STD+DIFF Fri 26-DEC-97 10:39 3 971226 P3 ARS1 STANDARD Sat 27-DEC-97 10:58 3 971227 P3 ARS1 NEWYEAR Sun *** *** No SXT Table Upload *** *** Sun 04-JAN-98 06:42 3 970104 P3 ARS1 DARKCAL ---------------------------------------------------------------- 2.2 STT timer setting: --------------------------------------- Operation Date Pass ID ======================================= Timer-Set Done 23-DEC-97 971223-0723 Done 28-DEC-97 971228-0413 Next Timer Set sometime by 06-JAN-98 --------------------------------------- 2.3 HXT, BCS, and WBS calibration No Cals. 3. Errors and Problems 3.1 BCS Errors and Problems: No errors. (as of 27 Dec.) 3.2 SXT Errors and Problems: No errors. (as of 27 Dec.) SXT appeared with CNT MAN at the first pass of 4-Jan. No errors were found in SAQL but JERR: ST RDY was recognized in SXTQLCC. After issuing SXT CNT AT, JERR disappeared and SXT started to work normally. 4. DSN Communications: 4.1 DSN Schedule Passes are deleted by DSN and SSOC Tohbans as follows. ------------------------------------------------------------------- DSN Schedule Week Deleted Passes =================================================================== Final W52 no cancellation Final W01 8 passes cancelled by SSOC Final W02 0 pass cancelled by SSOC of W02_98 Preliminary W02 74 passes cancelled by SSOC (*) Preliminary W03 0 pass cancelled by SSOC of W02_98 Strawman W03 --not yet arrived (as of 27 Dec.) (+) arrived on 29 Dec. 54 passes cancelled by volunteering tohban, Dr. Hudson Strawman W04 arrived on 3 Jan. 83 passes cancelled by SSOC of W02_98 ------------------------------------------------------------------- (*) Due partially to the troubles reported by the previous SSOC tohban, no cancellation was made at the stage of strawman. The preliminary schedule we got from Wallops via ftp (and e-mail) still include miscaliculation on the Canberra station times. (+) Will arrive on 28 December. !!!) The system to communicate with Wallops is still under construction. For details, see "Temporary Mannual" written by Hugh Hudson. Rem: Contact times received after 1-Jan-98 are all correct. 4.5 Data Transmission from DSN: (/home/flare1/yohkoh/dsn_corrupt/97_52) 346 74 2053 corrupted tape Requested 16 Dec. no response tape Requested 19 Dec. Closed/ correct data 350 74 1841 corrupted tape Requested 19 Dec. no response tape Requested 26 Dec. 351 76 0649 corrupted tape Requested 19 Dec. no response tape Requested 26 Dec. 353 17 0532 corrupted tape Requested 26 Dec. 354 76 0053 corrupted tape Requested 26 Dec. 354 76 0235 not received Requested 26 Dec. 354 76 0601 not received Requested 26 Dec. 355 17 0610 corrupted tape Requested 26 Dec. 5. KSC Pass Conflicts and Schedule 5.1 YOHKOH/ASCA/AKEBONO/HALCA Pass Conflicts at KSC: In week 01 (4 Jan. - 10 Jan.), 5 passes are lost due to HALCA and 4 passes due to Akebono. 6. Hikitsugi Items 6.1 Requests from DSN --- (NOT REVISED) 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 --- (NOT REVISED) 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 --- (NOT REVISED) 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 W01 SSOC : T. Watanabe, Iizuka KSC : Ohyama 6.5 OP (+OG) and Command Sheet Status The command sheets and the OP/OG for Sunday (4-JAN-98) have been created, checked, and transferred to KSC. 6.6 STT timer setting STT timer setting is due on 5 January, Tuesday. 6.7 Holiday Schedule: The next holiday will be on 11 January, Sunday. (But please be aware that the first operation after the holiday starts around 22:30 JST on that day.) 6.8 New Versions of English Tohban Manual and Tohban Checksheet -- NOT REVISED 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 -- NOT REVISED HEREAFTER ----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 -----------------------------------------------------------