----------------------------------------------------------------- SSOC Tohban Report for Week 29 (14 Jul - 21 Jul 1997) ----------------------------------------------------------------- SSOC : T.Yoshida, L.McDonald KSC : R.Kano, M.Torii 1. Solar Activity: The solar activity was low. 2. Standard Operation: 2.1 SXT Table Uploads: 6 SXT tables were uploaded last week. ------------------------------------------------------------ Pass ID Pass # Table ID ------------------------------------------------------------ Monday 970714-1238 4 970714 P4 ARS1 DKCAL Tuesday 970715-1032 3 970715 P3 ARS1 STD+DIFF Wednesday 970716-0929 2 970716 P2 ARS1 FAST+LONG Thursday 970717-0930 2 970717 P2 ARS1 FAST+LONG Friday 970718-1134 4 970718 P4 ARS1 STD+LONG Saturday 970719-1031 3 970719 P3 ARS1 STD+LONG ------------------------------------------------------------ 2.2 STT timer setting: In W29, the STT timer was set in pass 3 on 15-Jul-97 (970715-1032). The next timer setting is planned for pass 2 on 22-Jul-97. 2.3 Offpointing for Terminators None 2.4 HXT, BCS, and WBS calibrations HXT calibrations were done in pass 2 on 15-Jul-97, and pass 2 and pass 3 on 16-Jul-97. These were carried out with no problems. No BCS and WBS calibrations were done. 3. Errors and Problems 3.1 BCS Errors and Problems: None 3.2 SXT Errors and Problems: H. Hudson-san (SXT CO) reported that sometimes the ARS patrol images dumped after table loads are incomplete. KSC tohbans are recommended to follow this procedure. ---------------------------------------------------------------- After the dump command DP BC 8C05, KSC tohbans wait for about 16 seconds until the sign of the status 'SXT TLM' on SAQL changes from 'BUFF' to 'IMG'. ---------------------------------------------------------------- The cause of the error is not clear. 3.3 OP and OG Transmit Problem: During pass 1 on 14-Jul-97, it was found that the OG scheduled to be uploaded at the pass was blank (this means the OG was just same as the previous one.). It seems that the OP and OG were not transmitted correctly from SSOC to KSC. The OP was stopped at pass 1. The OP and OG were retransmitted from SSOC to KSC, and the recovery operation was done at pass 2 on 14-Jul-97. 3.4 DSN Schedule File Transmission Problem We received a preliminary schedule file for W30 in which the schedule for week 23 was included. We don't know why this occurred. 4. DSN Communications: 4.1 DSN Final schedule for W29: No change. 4.2 DSN Final schedule for W30: We canceled 3 passes. 4.3 DSN Preliminary Schedule for W31: No change. 4.4 DSN Strawman schedule for W32: The schedule had not arrived by Friday. The schedule will be determined on Tuesday (22-Jul-1997). 4.5 Data Transmission from DSN: (/home/flare1/yohkoh/dsn_corrupt/97_29) 176 76 1344 not received Requested 02 Jul. no response Requested 10 Jul. 176 80 1527 not received Requested 02 Jul. no response Requested 10 Jul. 176 76 1709 not received Requested 02 Jul. no response Requested 10 Jul. 176 76 1853 not received Requested 02 Jul no response Requested 10 Jul. 177 76 1404 not received Requested 02 Jul. no response Requested 10 Jul. 177 80 1545 not received Requested 02 Jul. no response Requested 10 Jul. 177 76 1728 not received Requested 02 Jul. no response Requested 10 Jul. 188 76 0709 corrupted tape Requested 14 Jul. no response Requested 17 Jul. 191 66 0131 not received Requested 17 Jul. Closed / correct data 191 76 0622 not received Requested 14 Jul. no response Requested 17 Jul. 191 17 1447 corrupted tape Requested 14 Jul. no response Requested 17 Jul. 196 17 1254 corrupted tape Requested 17 Jul. @@@ #2301 data -JPL FAX(14-Jul):No data not processing TLM. @@@ DOY-176,177 Wallops data-JPL e-mail(14-Jul): These playbacks have been scheduled in week30 DOY202, due to the heavy load of playbacks at Wallops. 5. KSC Pass cancellation 5.1 YOHKOH/ASCA/AKEBONO/HALCA Pass Conflicts at KSC: Week 29: There was 5 Yohkoh pass cancellations in W29 due to conflicts with Akebono and Halka. Week 30: There was 8 Yohkoh pass cancellations in W30 due to conflicts with Akebono and Halka. 5.2 Other None. 6. Special Operations: None. 7. Holiday Schedule: July 20 was a operations holiday. The next holiday will be July 27. 8. Hikitsugi Items: 8.1 Tohbans for W30 SSOC : S.Morita and students of Prof. K.Shibata KSC : M.Torii and M.Takahashi. 8.2 OP and Command Sheet Status The command sheets and OP for Monday (21-Jun-97) have been sent to KSC. The OP has also been transferred to KSC. 8.3 STT Timer setting The next STT Timer setting should be executed in pass 2 on 22-Jul-97. 8.4 New Manual and Checksheet Versions ----Quoted from the previous week report ---------------------------------- A new version of the English Tohban Manual is now out. Future tohbans should write corrections and updates directly in the manual, and inform A. Sterling of the changes. Jim Lemen has made a new version of the checksheet to correspond to the new manual. Changes to the checksheet should be marked on the checksheet and reported to A. Sterling. --------------------------------------------------------------------------- 8.5 Sirius Data Nothing to report. 8.6 Suggestion to DSN selection rule: mail from JPL ----Quoted from the previous week 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) --------------------------------------------------------------------------- 8.7 New Email address for DSN cancellations : part of mail from Arthur E Andujo ----Quoted from the previous week report ---------------------------------- .... could you change the address you use to send the weekly deletes for SOLAR-A, FROM: dsnsched@dsn.jpl.nasa.gov dsnsched@lilypad.jpl.nasa.gov AND BEGIN USING: DSNSched@jpl.nasa.gov ^^^^^^^^^^^^^^^^^^^^^ This would facilitate a quicker and more efficient delivery of messages. --------------------------------------------------------------------------- 8.8 DSN schedule delivery According to the previous tohbans ----Quoted from the previous week report ---------------------------------- DSN schedules delivery software did not work right W28, and we got almost all the schedules via RASM. Please check DSN schedules via RASM. --------------------------------------------------------------------------- In week 29 we have only one error to report in section 3.4. However, we had no errors with the final schedules, and we didn't check the schedules via RASM. 8.9 KSC Power Down Schedule The power down of SA telemeter in KSC is scheduled on 27-July 1997 (Operation Holiday). The detailed time schedule has not been fixed. 9. Action Items 9.1 Week-29-A/I-1 /Hara? / status: Open Incomplete Patrol Image: H. Hudson-san (SXT CO) reported that sometimes the ARS patrol images dumped after table loads are incomplete.