SSOC Tohbans Report for Week 02_96 (8 January - 14 January 1996) SSOC: S. Nagata and S. Yuda KSC: J. Sato and Ueta 0. Meeting Attendants -------------------------------------------------------- Meeting was not held. 1. Solar Activity ------------------------------------------------------------ Solar Activity decreased during W02.Several B class flares were detected in the first two days of this week. The biggest one was B3.7. No flares have been detected since 10-JAN. 2. Standard Operations ------------------------------------------------------- 2.1 SXT table uploads 3 SXT tables were uploaded: ------------------------------------------------ Date (JST) Pass# Table ID 8-JAN-96 3 960108 P3 ARS1 STD+LONG 9-JAN-96 2 960109 P2 ARS1 STD+DIFFU 10-JAN-96 2 960110 P2 ARS2 STD+LONG 11-JAN-96 2 960111 P2 ARS2 DKCAL 12-JAN-96 1 960112 P1 ARS0 FILAMENT 13-JAN-96 3 960113 P3 ARS0 QT CORONA ------------------------------------------------ 2.2 STT timer setting STT Timer was set on 8-Jan-96 (JST) during pass 1 (ID: 960108-0927) and on 11-Jan-96 (JST) during pass 1 (ID: 960111-0722). 2.3 SXT terminator images and S/C offset pointings The following table shows SXT terminator images and S/C pointing information. ------------------------------------------------------------- Date Time (UT) OG comment (OG#) ------------------------------------------------------------- 8-Jan-96 17:53:51 S/C W.100 S.539 (33) (Nomal pointing at 18:23:11) 9-Jan-96 11:43:11 S/C W.100 S.539 (33) (Nomal pointing at 12:12:31) 14:57:35 S/C W.100 S.539 (33) (Nomal pointing at 15:27:27) 18:21:15 S/C W.018 S.353 (34) (Nomal pointing at 18:41:35) 10-Jan-96 00:41:03 S/C W.018 S.353 (34) (Nomal pointing at 01:10:23) 03:55:43 S/C W.018 S.353 (34) (Nomal pointing at 04:25:03) 13-Jan-96 11:21:36 Normal ------------------------------------------------------------- 2.4 HXT Calibration 3 passes this week were used for HXT calibration: Pass 1 on 10-Jan (UT) (ID: 960120-0825) Pass 2 on 10-Jan (UT) (ID: 960110-0928) Pass 3 on 10-Jan (UT) (ID: 960110-1032). 2.5 OGs for HXT fine gain change We revised 8 OGs for HXT fine gain change and uploaded in the pass 960109-0927 3. Errors and Problems ------------------------------------------------------- 3.1 SXT errors No SXT errors were detected this week. 3.2 BCS errors We found BSC errors in the pass 960108-0927 and in 960108-1134. These were recovered in the pass 960108-1134. Other BSC error was found in the pass 960110-0928 and was recovered in the pass 960110-1032. 3.3 KSC modem down Before the 1st pass of W02, KSC_toban found that it was impossible to logon to SSOC#1 from KSC. Because of the rapid research for this disconnection we could clear this problem. It was because after the last pass of W01, someone turned off the KSC modem connected to SSOC#1. 3.4 SXT TBL CHECK PROBLREM In the pass 960109-0927, SXT TBL CHK job didn't work right. During this pass we carried out SXT TBL WR, SXT TBL RE again from MS and this was done with no problem. This kind of error have not occurred since then. The reason has not been fixed. 4. DSN Communications -------------------------------------------------------- 4.1 DSN Final schedule for W02 We canceled 3 DSN contacts from the final schedule for W02. 4.2 DSN Final schedule for W03 We canceled 21 DSN contacts from the Final schedule for W03. 4.3 DSN Preliminary schedule for W04 We canceled 5 DSN contacrs from the Preliminar schedule for W04. 4.4 DSN Strawman schedule for W05 We canceled 60 DSN contacts from the Strawman schedule for W05. 4.5 DSN Strawman schedule for W04 We canceled 64 DSN contacts from the Strawman schedule for W04. 4.6 Pass additions We added 1 DSN contact to the Preliminary Schedule for W04. 4.7 Re-transmission requests and results Katano-san requested re-transmission of the following passes: DOY 355 21-DEC-95 17:46-18:31 DOY 358 24-DEC-95 13:43-14:30 DOY 361 27-DEC-95 07:49-08:35 DOY 361 27-DEC-95 14:41-15:25 DOY 006 06-JAN-96 07:24-08:09 DOY 006 06-JAn-96 09:08-09:53 DOY 006 06-JAN-96 10:51-11:36 DOY 009 09-JAN-96 03:24-04:09 DOY 010 10-JAN-96 10:24-11:08 5. Yohkoh/ASCA/SFU Pass Conflicts at KSC ------------------------------------- In W02, 8 passes were lost due to conflicts with ASUKA and 6 passes with SFU. 7. Holiday Schedule The next holiday will be on Sunday, 21-Jan. 8. Hikitsugi Items ----------------------------------------------------------- 8.1 Tohbans for W02 KSC: E. Ueta and K. Hori SSOC: K. Akita and T. Ishii 8.2 STT timer setting The next STT timer set is due on 10-Jan-96 JST at the third pass. 8.3 Offpoint terminator images If terminators appear in the OP generated by running OP_FIRST_GUESS, then the OP should be FAXed to the SXT_CO (Chief Observer) in D-toh. The SXT_CO will then inform the SSOC tohbans if offpointing will be carried out. If so, the OP will need be edited appropriately. 8.4 Transmission of OPs It is no longer necessary to confirm the transmission of OP/OG files to KSC by checking the printout on the 3rd floor in B-toh. Instead the time of transmission of the OP/OG files should be noted down. If the SSOC or KSC tohbans notice any failure in transmission of the OP/OG files then it should be reported to Shuto-san and Kosugi-san. 8.5 SXT patrol image dumps A block command `DP BC 8C-05 (hex)' should be executed whenever an SXT Table is uploaded. Since the Sun is very quiet, ARS parameters need to be checked by the SXT patrol images dumped by this command. 8.6 WWW server of DSN The DSN NOCC Information Server (NIS) is now on-line and available for DSN scheduling operations. The URL location is: http://dsn.jpl.nasa.gov/nss ------------------------------- End of Report ---------------------------------