SSOC Tohban Report for Week 37 ( 13 SEP - 19 SEP , 1993 )
                    Sep 20, 1993   K. Akita and R. Kano

0.General
   In this week, Gyro Switching Test ( Y to S ) was done.
  Its results and the plan from W38 will be reported later.

1.Solar Activity
   Solar Activity of this week was very low but started to rise
  gradually. One C-class flare occurred on 16 Sep.

2.SSOC Operations

2-1. SXT Table Changes
  Sep 14, Pass2(930914-0514)   930914 T1 P2 ARS1 DARKCAL
  Sep 15, Pass2(930915-0514)   930915 T1 P2 DEEP CORONA
  Sep 15, Pass4(930915-0721)   930915 T2 P4 ARS1 STD+LONG

2-2. STT Timer Set
  STT timer was set at pass2 on Sep 14. The next setting should
 be done on Sep 21.

3.Error and Problems
  SXT has one error. BIT MAP ERROR occurred at pass1 on Sep 14.
  SXT was recovered by Yobi-C in the same pass.
  BSC has no error in this week.

4.Special Operations and Calibrations

4-1. Offset pointing
  The 8' east/west offset pointing was done from pass 2 to 
 pass 4 on Sep 15.

4-2. HXT Fine Gain Change
  Sep 14, Pass1(930914-0410)   OG 2E-35 were uploaded.
  Sep 14, Pass3(930914-0617)   ROG 2E-35 were executed.

4-3. BSC Calibrations
  Sep 15, Pass4(930915-0721)   BCS SITM CAL
  Sep 15, between Pass4 & 5    BCS Source CAL

4-4. Gyro Switching Test ( Y to S )
  On Sep 16, we checked S gyro status and found that S gyro may be
 much better than Y gyro. For example, the drift rate of S- & Y-gyro 
 are ~0.1 & ~5 deg/hour respectively.

5. DSN data
  no problem
 
6.Hikitsugi

6-1. Tobans in week 38
  SSOC  Ta.Watanabe, Shoji
  KSC   Hiraoka, Takano

6-2. Next STT Timer SET
  Sep 21

6-3. Offset Pointing
  8' east/west offpoint operations on Sep 22

6-4 Terminator program

6-5 Gyro Switching ( Y to S )
  Y gyro will be substituted by S gyro today (Sep 20).