SSOC Tohban's Report for Week 29 ( 13 July - 20 July 1998) SSOC : Shimizu, Shinohara KSC : Shiozawa, Kumagai 0. Meeting Attendance H. Hudson, S. Morita, Y. Ogawara, T. Sakao, A. Sterling, B. Stern, T. Watanabe Oh, there is a meeting in the national holiday (the day of the sea?). ----------------------------------------------------------------------- 1. Solar Activity and significant operational event Solar activity became high with one M-class and several C-class flares during 14th through 16th July. Major flares and their Yohkoh status are listed: Day Peak Yohkoh status 14-Jul-98 12:59 M4.6 Peak phase in SAA, decay phase was observed from 13:01 with FL-mode 15-Jul-98 10:46 C5.7 in night 16:13 C3.7 Peak phase in SAA 19:53 C6.8 in day. Data does not arrive. 16_Jul-98 00:23 C6.5 in day. Data does not arrive. 20:33 C5.0 in night There are a few other C-class flares. ----------------------------------------------------------------------- 2. Standard Operations 2.1 SXT Table Uploads The following SXT tables were uploaded last week. ---------------------------------------------------------------- Pass ID Pass Table ID ================================================================ 980713-0512 1 980713 P3 ARS1 DIFF 980714-0824 3 980714 P3 ARS1 DARKCAL 980715-0618 2 980715 P2 ARS1 STD 980718-0413 1 980718 P1 ARS2 TRACE 980718-0723 4 980718 P4 ARS2 TRACE/W ---------------------------------------------------------------- The table upload planned at 980717-0722 was cancelled because the table did not arrive at KSC. 2.2 STT timer setting STT timer was set at pass 4 (980713-0827) on July 13. STT works fine. 2.3 Calibration 2.3.1 HXT Calibration none 2.3.2 BCS Calibration none 2.4 Holiday schedule 21 July (Tue) will be a regular holiday of the ISAS sattelites. 2.5 Flare 1 home-directory crash One of the hard-disks on flare1 workstaion has crashed on 4 July. It included the home-directory of the 'yohkoh' account. Most of the files younger than one-month old were lost. A whole Flare 1 system was replaced to Flare 21 machine last week. Now new Flare 1 seems to be working well. If you have any problems, please notice them to WS managers. -------------------------------------------------------------------------- 3. Errors and Problems 3.1 BCS Errors None 3.2 SXT Errors None ----------------------------------------------------------------------- 4. Special Operations None ----------------------------------------------------------------------- 5. DSN Communications 5.1 DSN Schedule Passes were deleted by SSOC Tohbans as follows. ------------------------------------------------------------------- DSN Schedule Week Deleted Passes =================================================================== Final(Realtime) W29 2 passes deleted by SSOC Final W30 3 passes deleted by SSOC Preliminary W31 none Strawman W32 78 passes deleted by SSOC ------------------------------------------------------------------- 5.2 Data Transmission from DSN None ----------------------------------------------------------------------- 6. KSC Pass Conflicts and Schedule 1 pass was lost due to conflict with ASCA, 1 pass due to conflict with HALCA. All 5 passes on 19 July were lost because of a NOZOMI (Planet-B) operation at KSC. ----------------------------------------------------------------------- 7. Hikitsugi Items 7.0 Urgent items. OPs and Command plan for Today (20 Jul) were prepared and transferred to KSC. On 20 Jul, we have two OP uploads becase 21 Jul is a holiday. Please check DSN tracking schedule change. 7.1 Tohbans for week 30 (20 July -26 July) SSOC : Morita KSC : Kumagai, Yamaguchi 7.2 STT timer setting Next STT timer setting is on schedule Today on 20 July. This is already included in the today's command plan. Canopus tracking situation is good. 7.3 Holiday Schedule The holiday in week 30 will be on 26 July (Sun). 7.4 Update on the Late Arrival of the Final Schedule from Wallops The final schedules for week 30 arrived on Thursday, as we had hoped. ============================================================= || The following is the same as the previous week's report || ============================================================= 7.5 DSN selection by the program FMT_WALLOPS The SSOC tohbans should check the ACTIVITY column of the 7dayss-list to make sure that the keyword TKG PASS is not omitted or replaced with another term. This happened last week. The FMT_WALLOPS program searches for TKG PASS and willeliminate passes without this keyword. According to Wallops they will not use other comments in the ACTIVITY columun. But the SSOC tohbans should check this for the next few weeks just to make sure. 7.6 Pass Additions and Wallops Deletions At the meeting it was decided that for the Strawman schedule the SSOC tohbans should select the best DSN passes but, in addition, they should not delete any Wallops passes. After receiving the Preliminary schedule with JPL/DSN deletions, the unnecessary Wallops passes should be deleted. 7.7 DSN scheduling Since mid week 10, 1998, Wallops schedules all DSN passes instead of JPL. The system to communicate with Wallops is still under construction. For details, see the temporary manual in the file ~wallops/README file on flare20. All DSN-related software should be run from an IDL session in the flare20/wallops subdirectory. Please immediately report any problems with the DSN software or errors in the manual to Hudson san. (New week 25) Please retain all Wallops passes in the Strawman cancellation process. We have been informed by Wallops that this is OK. These passes are cancelled by NASA less frequently, so by doing this we avoid days with almost no coverage. 7.8 Bug in op_first_guess SSOC tohbans should be aware of a bug in op_first_guess, e.g., "% OP_START_END: Problem with detection of LOS/AOS/DSN Repro Events". If DSN-related software in the directory ~yohkoh/wallops does not work correctly, check to see if the files being used which you have obtained through ftp from Wallops (e.g., 7dayss.wNN) are written in the same format as the previous weeks' files. We experienced (week 25) some confusion about the timing of KSC AOS and the DAY OG. Please be careful. If there is an KSC-AOS NIGHT one step before the DAY OG, normally the two commands can simply be interchanged and the AOS command switched to DAY. 7.9 BDR trouble (See 'DP error' in "SSOC Tohban's Report for Week 02" in 1998.) A DP error (error code = 90 ->75) was found during the data dump at 980106-0411. 2 of 20 BDR blocks are not accessible. As a result, the capacity of BDR is at the moment nine-tenths that of the normal capacity. This error has not been recovered yet. Please note the special commands, RST BAD BANK DP DC EXEC now routinely appearing in the end of command sheets. This is part of the recovery attempt. 7.10 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. 7.11 Long Range Schedule Arrangement for Planet-B Planet-B was launched on July 4, 1998 for the mission to Mars. During the flight operation (lasting for 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 64m and the newly (to be) installed KSC 34m antenna. Tracking schedule during the flight operation interval will be negotiated among the five teams namely: AKEBONO, YOHKOH, ASCA, HALCA and Planet-B. (Tetsuya WATANABE,NAOJ) * For more information, see a filed report (written in Japanese). ----------------------------------------------------------------------- 8. Action Items (Same as last week's SSOC Report) 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-48-A/I-1 /Hudson/status AJAR. 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. === END ===