SSOC Tohban Report for Week 41 ( 11 OCT - 18 OCT, 1993 )
                                  M. Sawa and J. Lemen    (SSOC)
                                  G. Kawai and M. Noguchi (KSC)

0.General
  The E/W offpoint was done on 13 Oct 1993 (JST).
  The offpoint operations went smoothly, despite the fact that the Star Tracker
  was eclipsed during most of the week.
  This was a "seven pass" week, as the first KSC contact at the end of the 
  week was just starting to occur slightly before midnight.

1.Solar Activity
  Solar Activity for this week was generally low.  Most of the activity was
  from AR 7597 which produced the largest flare of the week, a C1.5.  During
  the latter part of the week, the average GOES level decreased and is now 
  below B1 level.

2.SSOC Operations

2-1. SXT Table Changes
  Oct 12, Pass3(931011-1341)   930911 T1 P3 ARS1 DARK CAL
  Oct 13, Pass2(931012-1134)   931012 T1 P2 DEEP CORONA E
  Oct 13, Pass4(931012-1341)   931012 T2 P4 ARS1 STD
  Oct 15, Pass2(931015-1032)   931015 T1 P@ ARS1 STD

2-2. STT Timer Set
  STT timer was set on 16 Oct. The next setting should be done on 19 Oct.

3.Error and Problems
  o BCS had no errors
  o SXT had no specific errors.  There was a problem during one SXT table 
    upload caused by a problem with the A-400 computer, but this was resolved 
    during the pass with no effect on operations.
  o GBO mail was sometimes delayed because of network problems at/to KSC.

4.Special Operations and Calibrations

4-1. Offset pointing
  The 8' east/west offset pointing was done from pass 2 to pass 4 on 13 Oct.
4-2. HXT Calibration was done during three night time KSC passes.
   931011-1236, 931013-1238, 931015-1136

5. DSN data
   Three Goldstone passes were canceled on 15 Oct (at 09:32, 11:16, 13:00) 
   because of the slip in the Space shuttle launch.  Because of the timing of 
   the KSC contacts relative to the time of the canceled passes, we were 
   unable to modify the OP load, and this data was lost, including one SXT 
   terminator image.

   A message from Joe Espinueva arrived for Yamada san which describes
   the imminent upgrade of the DSN telemetry system.  Tests to the ISAS 
   Gateway may be conducted.

   Last week's DSN report from Joe Espinueva came in a coded format which we
   could not read.  We sent a message to JE to describing the problem.

   There are several manuals which describe the DSN/RASM operations which are
   mostly correct, but need slight revisions.  Over the next couple of weeks, 
   JRL will attempt to consolidate and update the manual.

6.Hikitsugi

6-1. Tobans in week 42
   SSOC  S. Watari,  F. Farnik
   KSC   G. Kawai,   T. Sakao
6-2. Next STT Timer SET
   The STT timer is due to be set again on 19 Oct.
6-3. Offset Pointing
   8' east/west offpoint operations on 20 Oct between passes 2 and 4.
6-4. Terminator program
   We reviewed the terminator program and discovered that the procedure 
   described in the original manual (1-Sep-93 by H. Hudson) was not being 
   followed correctly.  In fact, it does not appear that we have obtained, 
   by design, any good terminator images for the preceding few weeks 
   (although we continue to obtain one or two a week by accident).  

   We have modified the procedure and have made a change to OP_FIRST_GUESS 
   to help future SSOC tohbans insert the correct commands.  We have also 
   updated the Terminator Manual.

   Please continue the terminator program during the weekday passes.