----------------------------------------------------------------- SSOC Tohban's Report for Week 41 (6 Oct 1997 - 12 Oct 1997) ----------------------------------------------------------------- SSOC : H. Nakajima & T. Magara KSC : Y. Saitoh & Y. Ohyama 0. Meeting attendance (in alphabetical order): Hudson, Kisugi, Magara, McKenzie, Nishino, Ogawara, Sawa, Slater, Sterling, Watanabe 1. Solar Activity: Solar activity continued to be moderate. The GOES X-ray level was at under-C. The largest flare was B9.2 at 11:47 on Oct. 9. 2. Standard Operation: 2.1 SXT Table Uploads: The following SXT tables were uploaded last week. ------------------------------------------------------------ Pass ID Pass # Table ID ------------------------------------------------------------ Monday 971006-0205 4 971004 P4 ARS1 STD Tuesday 971007-0102 3 971007 P3 ARS1 DKCAL Wednesday 971008-0103 4 971008 P4 ARS2 NORIKURA Thursday 971009-0104 4 971009 P4 ARS2 NORIKURA Friday 971010-0104 4 971004 P4 ARS2 DIFF,VER2 Saturday 971010-1343 2 971010 P2 ARS1 STD+DKEXP ------------------------------------------------------------ 2.2 STT timer setting: We set the STT timer during pass 2 on Oct 7, Tuesday (971006-1547). The next STT timer setting is due on Oct 14, Tuesday. 2.3 Off-pointing for Terminators : None 2.4 HXT, BCS, and WBS calibrations : None 3. Errors and Problems 3.1 SXT Errors and Problems: None. 3.2 BCS Errors and Problems: BCS errors occurred in pass 3 on Oct. 7 and in pass 1 on Oct. 11, and were recovered in the next passes. 3.3 KSC S3500 Computer Problem The mainframe S3500 at KSC worked rather stably throughout this week. Details of troubles of S3500 in week_40 is described by Iizuka-san, last week KSC toban and filed in Yohkoh KSC Operation Report. 3.4 OP command problem In pass 1 on Oct. 11, Day OG didn't work because of OP-stop state, which was caused by a wrong command sheet. Therefore, KSC uploaded real-time Day OG so that the operation completed successfully. 3.5 False Flare During pass 1-2 on Oct. 11, flare mode was detected, but this seemed to be a false mode,judging from the goes data at that time. 4. DSN Communications: 4.1 DSN Final Schedule for W41: 4 passes were cancelled. 4.2 DSN Final Schedule for W42: No pass was canceled by DSN. 4.3 DSN Preliminary Schedule for W43: No pass was canceled by DSN. 4.4 DSN Strawman Schedule for W44: The meeting for ASCA pass conflicts resolution has been deferred to Monday Oct 13. 4.5 Data Transmission from DSN: (/home/flare1/yohkoh/dsn_corrupt/97_41) 263 16 0447 corrupted tape Requested 26 Sep. no response Requested 09 Oct. 273 80 1510 corrupted tape Requested 07 Oct. no response Requested 09 Oct. 273 76 1652 corrupted tape Requested 07 Oct. no response Requested 09 Oct. 273 76 1835 corrupted tape Requested 07 Oct. no response Requested 09 Oct. 273 76 2019 corrupted tape Requested 07 Oct. no response Requested 09 Oct. 4.6 DSN scheduling interface tasks change Starting past week, September 21, 1997, the scheduling interface tasks for Yohkoh and ASCA has been shifted from DSN to the Wallops Flight Facility (WFF). The E-mail mailing list has been updated. Schedules have been sent to us regularly this week. 5. KSC Pass Conflicts and Schedule 5.1 YOHKOH/ASCA/AKEBONO/HALCA Pass Conflicts at KSC: No Yohkoh pass is lost. 5.2 Future Schedule: None 6. Special Operations: None 8. Hikitsugi Items: 8.1 Tohbans for W42 SSOC : Nishino & Yamamoto KSC : Ohyama & Shiozawa 8.2 OP and Command Sheet Status The command sheets and the OP for Monday (13-Oct-97) have been created. And the OP has already been transferred. 8.3 STT timer setting STT timer setting is due on 14 Oct, Tuesday. 8.4 Holiday Schedule: The next holiday will be 20 Oct, Monday. 8.5 OPOGNEW instead of OPOGEDT ----From W37 report ---------------------------- We continued to use the revised version of OPOGEDT, OPOGNEW. OPOGNEW is the same as OPOGEDT except that the printing out of the OP is simpler. The SSOC tohbans should press the PF4 key (`print') on the mainframe and then print out the OP by typing: IDL> print_op CAUTION : The account, `s80670', for FTP transfering OP from main frame is used. This account's password must be changed every month, same as s88239's one. ***** NOTE ******* Similarly, in order to print out the OG, type: IDL> print_ogall IDL> print_ogsel ***** These softwares are not available. See A/I ****** 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. --------------------------------------------------------------------------- Failure... We (Week 41's tohbans) didn`t notice the new command (opognew) and continued to use the previous command (opogedt) instead. Sakurai-san said, "Just a minute ago I renamed OPOGEDT to OPOGEDT1, OPOGNEW to OPOGEDT. The name OPOGNEW still remains for the time being." Therefore, from this week SSOC tohbans can use OPOGEDT with no problem. 8.6 STT_PLOT ----From W37 report ---------------------------- It is possible to check the STT Tracking by using the routine `STT_PLOT': First make sure you are on the HOME directory of the yohkoh account then type: IDL> stt_plot (,'DD-MM-YY') This will plot a time variation of the STT output signal level. If the STT is working properly, the signal level should stay in between 400--800, and should vary only in the time period set by the timer. See sample plots in the tohban's manual. --------------------------------------------------------------------------- 8.7 Sirius Data Nothing to report. 8.8 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) --------------------------------------------------------------------------- 9. Action Items 9.1 Further software development 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. 9.2 Week-35-A/I-1 SSOC tohbans The SSOC tohbans should inspect the horizon maps sent by JPL and think about whether it would be possible to determine whether the acceptable minumum altitude (Is 10 degrees really the best estimate or is less accepatble?). Please refer to Hudson-san for further information. 9.3 Week-37-A/I-1 /Hudson/status open The following IDL softwares do not work well. Hudson-san will fix them. IDL> print_ogall IDL> print_ogsel end of report -------------------------------------------------------------------------------