SSOC Tohban Report for Week 31 (2 AUG - 9 AUG , 1993) 
					A.MCALLISTER & K.YAJI
				        9 AUG, 1993

1.Solar Activity:
  Solar activity was generally low through this week. There are no major flares
except 7 C-class, of which the biggest flare is C6.4 on 4 AUG.


2.SSOC Operations:

2-1. SXT Table Changes:
  AUG 3, Pass3(930803-0411) 930803 T1 P2 ARS2 EFR+ND
  (This table should have been uploaded in the pass2 but the fax wasn't sent in 
   time.)  
  AUG 3, Pass3(930803-0515) 930803 T2 P4 ARS1 X-SCAT
  AUG 4, Pass2(930804-0205) 930804 T1 P2 ARS2 EFR+LONG
  AUG 4, Pass4(930804-0412) 930804 T2 P4 ARS2 EFR+DARK
  AUG 5, Pass2(930805-0206) 930805 T1 P2 ARS2 EFR+DIFF
  AUG 5, Pass4(930805-0413) 930805 T2 P4 ARS2 EFR+SSET
  AUG 6, Pass3(930806-0103) 930806 T1 P3 ARS2 EFR+SSET
  AUG 6, Pass3(930806-0310) 930806 T2 P4 ARS1 EFR+SSET
  AUG 7, Pass2(930807-0104) 930807 T2 P2 RS2 FAST+SSET
  AUG 7, Pass3(930807-0207) 930807 T3 P3 RS2 FAST+SSET
  AUG 7, Pass4(930807-0311) 930807 T4 P4 RS2 EFR+XSCAT



2-2. STT Timer Set:

   STT Timer was set in the pass1, Tuesday. The next setting should be
 done on 10, August.


3.Errors and Problems:

3-1  BCS SEU Error 930802-0618 
    (Recovered in Pass2(930803-0308) on the next day)

3-2 Flare Occurence durung SXT Table Upload
  When SXT table was uploaded in  the pass2 on 5 Aug, C6.4 flare occurred.
This is a very unusual case.

pass: 930804-0205

        2:23:41 SXT CNT MAN
        2:23:58 DP BC ENA       start of writing a SXT new table
        2:24:10                 SXS flare flag on (C6.4 flare), letting
                                DP into FL/H mode, and starting an IOG #6.
        2:24:12 DP BC EXE       finish of writing the table data.
        2:24:13 SXT TBL WR      SXT table write
        2:24:18                 finish of the IOG, having ignored all the
                                command sent during the 8 sec from the ground.
        2:24:18 SXT TBL RE      got a result of numerous non-compares.
        2:27:06 DP BC ENA       start of the second trial of SXT table write,
                                after pondering for 3 minutes.
        -----
3-3 FAX DISORDER
   Because the typhoons struck Kagoshima, telephon line was very crowded.
As the result, the fax was very erratic at KSC. 

4. Special Operation and Calibration

4-1 A large scale international joint observing campaign was begun on August 3.
This is in part responsable for the large number of table changes.

4-2 We have started a program of taking terminator exposures using OG's. For 
the moment this requires hand editing the OP list to insert the proper commands
around the terminator. This operation was done after KSC passes 2-4 on Thursday-
Saturday.

4-3 Most other special operations, including the weekly offpointing were not
done this week due to the observation campaign.  

5.  DSN data
  All the data downlinked DSN stations until the last Monday were transmitted.

6.Hikitsugi
	
6-1. Tobans in week 32

      SSOC  H.Miyazaki & K.Akita
      KSC   S.Koide & H.Yatagai
                                            
6-2 Next STT Timer Set
   10 August (Tue)

6-3 Campaign Observation
    Until 10 August (Tue)

6-4 Offset Pointing
   12 August (Thu)

6-5 Terminator program.