SSOC Tohban Report for Week 38 (19-25 September 1994) SSOC: H. Watanabe and Y. Kozuka KSC : S. Sano and K. Morimoto 1. Solar Activity --------------------------------------------------------- Solar Activity continued to be very low throughout week 38. After NOAA region 7779 disappeared on 21-SEP-94, the GOES level stayed almost below A1 with no flare event. No sunspot was observed at Mitaka on 20- and 21-SEP-94, but a new active region NOAA 7781 appeared near the central meridian of the solar disk on 23-SEP-94. 2. Standard Operation ------------------------------------------------------ 2.1 SXT Table Uploads JST day Pass NO. Table ID Offpoint 20-Sep-94 Pass 2 '940920 P2 SPARTAN TAB1' South(8') Pass 3 '940920 P3 ARS1 STD+LONG' 21-Sep-94 Pass 2 '940921 P2 SPARTAN TAB1' North(4') Pass 3 No Table Upload South(8') Pass 4 '940921 P4 ARS1 STD+LONG' 22-Sep-94 Pass 2 '940922 P2 SPARTAN TAB1' Nort(4') Pass 3 '940922 P3 ARS1 STD+LONG' 23-Sep-94 Pass 2 '940923 P2 SPARTAN TAB1' North(4') Pass 3 No Table Upload South(8') Pass 4 '940923 P4 ARS1 STD+LONG' 2.2 STT Timer Set STT Timer was set on Tuesday (Pass 2 on 20-Sep-94). 3. Special Operation ------------------------------------------------------- 3.1 SPARTAN Campaign Observation In week 38, we gathered some post-campaign data for SPARTAN. The SPARTAN campaign tables were uploaded and offpoint observations were carried out as the following list. JST day Pass or time (UT) Offpoint 20-Sep-94 Pass 2 - Pass 3 South ( 8') (ROG 56H) 13:53:19 - 14:25:51 South ( 8') ( in OP ) 15:29:51 - 15:39:59 North ( 4') ( in OP ) 21-Sep-94 Pass 2 - Pass 3 North ( 4') (ROG 57H) Pass 3 - Pass 4 South ( 8') (ROG 56H) 04:28:47 - 04:35:43 South-East ( 8') ( in OP ) 07:43:27 - 07:55:43 South (16') ( in OP ) 09:20:31 - 09:32:47 West ( 8') ( in OP ) 14:12:15 - 14:21:19 East ( 8') ( in OP ) 22-Sep-94 Pass 2 - Pass 3 North ( 4') (ROG 57H) 08:02:23 - 08:14:39 South (16') ( in OP ) 14:31:43 - 14:43:59 North ( 4') ( in OP ) 23-Sep-94 Pass 2 - Pass 3 North ( 4') (ROG 57H) Pass 3 - Pass 4 South ( 8') (ROG 56H) 4. Errors & Ploblem -------------------------------------------------------- 4.1 DP Error 21-Sep-94 Pass 3 : (A5) Error -> recovered in Pass 5 According to Nomura-san (Fujitsu), this is the same type error as one which occured in week 37. Although KSC Tohbans checked SXT shutter close in executing the command 'SXT CTL MANU', the error occurrred. It seems to have been caused by the bad timing of executing the command. 4.2 SXT Error 21-Sep-94 Pass 3 : FLT ST Error -> recovered during the same pass 21-Sep-94 Pass 4 : BIT MAP Error -> recovered during the same pass 4.3 Monday's OP At pass 1 on Monday morning (19-SEP-94), the OP was not uploaded because it was not transfered to KSC by the Tohbans of week 37. It was uploaded on Pass 3. 5. DSN Communications ------------------------------------------------------ 5.1 DSN Strawman Schedule for week 41 There is no DSN conflict with ASCA in the Strawman schedlue for week 41, so, we did not have to have a meeting with ASCA group for week 41. 5.2 On Requested Datasets The datasets of 14-AUG-94 and 15-AUG-94 which were reqested in week 37 were arrived in complete form on 20-SEP-94. >> On 14,15-Sep-94, the datasets of 14 and 15-Aug-94 which we >>re-...-requested arrived. But the datasets from 0107 to 0118 >>and from 0616 to 0625 are not perfect, so we requested the >>re-transmission. 6. YOHKOH/ASCA Pass Conflict ---------------------------------------------- Two KSC passes (Pass 5 of 20-Sep-94 and 22-Sep-94) were lost in week 38 because of conflict with ASCA. Three passes (Pass 5 of 26-Sep-94, 30-Sep-94 and 01-Oct-94) will be lost in week 39. 7. Holiday Schedule ------------------------------------------------------- The next holiday is on 02-Oct-94 (JST). 8. Hikitsugi Item --------------------------------------------------------- 8.1 Tohbans for Week 39 SSOC: Yamamoto and S. Watari KSC: K. Morimoto and H. Hara 8.2 STT Timer Set The next STT timer set should be done on Tuesday (27-Sep-94). 8.3 Addition of Offpoint Commands to OPs We will get terminator images with offpoint for the SPARTAN campaign observations. After cantact with SXT chief observer, please add some offpoint commands to OPs during campaign observation mode. 8.4 E-mails E-mails to and from yohkoh@flare1 shoule be stored in weekly mail files. Please store E-mails of week 39 in "mail/mail_94_w39".