SSOC Tohban Report for Week 14_95
                      ( 3 APR - 10 APR 1995)

 SSOC : Masuda, S., Watanabe, H.
 KSC  : Takahashi, M., Yasuno, S.

 1. Solar Activity -----------------------------------------------------

 Activity was very low in this week, Goes X-ray level was staying less
    than B class. No sunspot appeared from 5 to 9 in April.

 2. Standard Operations ------------------------------------------------

   2.1 SXT Table Uploads : 5 times

  ---------------------------------------------------------------------
     KSC Time (start)         Pass#           Table ID
  ---------------------------------------------------------------------
      05-APR-95  13:10 JST      3      950405  P3 ARS1 DARKCAL
      06-APR-95  11:47 JST      3      950406  P3 ARS1 STD+LONG
      06-APR-95  13:30 JST      4      950406  P3 FIL  STD+LONG
      07-APR-95  12:05 JST      3      950407  P3 FIL  STD+LONG
      08-APR-95  12:25 JST      4      950408  P4 ARS1 STD+LONG
  ---------------------------------------------------------------------

   2.2 STT Timer Set

   The STT Timer was set on pass #2 on (Tue) 4-APR. The next setting will
      need to be on Tuesday, 11-APR.

   2.3 S/C off pointing

   There were 5 offpointings in this week. The performed time and day are
      as follows.

     03 APR 17:02 - 17:20 UT  :  OG 85 S/C W03 N02
     05 APR 16:03 - 16:24 UT  :  OG 86 S/C E04 N00
     06 APR 14:45 - 15:05 UT  :  OG 34 S/C W17 N00
     06 APR 16:22 - 16:43 UT  :  OG 35 S/C W10 S01
     07 APR 16:41 - 17:02 UT  :  OG 36 S/C W04 N00

 3. Errors & Problems -------------------------------------------------

   3.1  SXT and BCS errors

   An SXT bitmap error occurred at 950407-1445 (the first pass on Saturday) and
      was recovered at the same pass. There was no BCS error in the week 14.

 4. DSN Communications ------------------------------------------------------

   4.1 DSN  Strawman Schedule for W16

   Because the meeting for strawman schedule conflicts was not
      held on Friday (March 31), the strawman schedule for W16
      had not modified yet by previous SSOC tohbans. So, we cancelled
      18 DSN contacts from the W16 strawman schedule on Monday (April 3).

   4.2 DSN  Strawman Schedule for W17

   We cancelled 13 DSN contacts from the strawman schedule.

   4.3 DSN Forecast Schedule for W16
  
   We cancelled 9 DSN contacts from the forecast schedule.

   4.4 DSN Final Schedule for W15

   We did not have to cancel any DSN contact from the schedule.

   4.5 Post-pass transmission report for Wallops station

   Previous SSOC tohbans asked JPL to send 'post-pass transmission report'
      of the Wallops station. However, we have not received it yet. We
      requested it again on 7-APR.

   4.6 Pass addition

   Because some DSN contacts of SFU in w14 were cancelled, we added
      6 DSN contacts to the final schedule of w14.

 5. YOHKOH/ASCA/SFU Pass Conflicts at KSC ------------------------------------

 In week 14, we lost 11 KSC passes due to the ASCA and SFU conflicts.

 In week 15, 7 passes will be lost due to the ASCA conflicts.

 6. Special operation

 Because previous tohbans revised OG33 and OG34 in order to turn on
    and off the X-band, we returned them on Tuesday (4-APR).

       OG 33 TMX ON(L) ---------> S/C W19 S01
       OG 34 TMX OFF   ---------> S/C W17 S00

 7. Holiday Schedule --------------------------------------------------

 The next operation holiday will be on Sunday, April 16.

 8. Hikitsugi Items --------------------------------------------------

   8.1 Tohbans for Week14

   KSC  : Yasuno, S., Sakao, T.
   SSOC : Koshiishi, H., Sato, J.

   8.2 STT timer setting

   The next STT timer set is due on (Tue)11-Apr.

   8.3 DSN Data:

   We requested a data-retransmission of the 'DOY 90 22:22 - 22:32' pass.
      However, it has not come yet. Please request it again.

   8.4 Terminators.

   Do not schedule terminators (ie, delete them manually) from the KSC
     contact interval if they should be scheduled there by OP_FIRST_GUESS.
   We are doing offpoints on each terminator opportunity. Please consult
      with the SXT chief observer for how this works, and refer to examples
      in the OPs from Week 12 for guidance in how to schedule the images.
   We are using the following offpoint OG's and are going through them
      in sequence cyclically. That is, change each time to the next number
      please:
         OG 34 S/C W17 N00 (all OG numbers are decimal)
         OG 35 S/C W10 S01
         OG 36 S/C W04 N00
         OG 85 S/C W03 N02
         OG 86 S/C E04 N00 <------ next
      Do not use OG 33 and 87 until we clarify the safety issue.