To:sot_shift
from: Dan Schwartz
date: 07 Oct 99 , 12:00noon EDT
Subject: SOT shift report, Shift L76
--------
See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or 
/proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Oct_07_1999_L76.txt.

Shift L76. 
	Start at 280:11:00  GMT
		 = 07:00am   07 Oct EDT
	End	   12:00noon 07 Oct
   
SOT Lead	DAS
Spac/Aspect	
FOT/Sci liason	
HRC		
ACIS 		

(Times will be given in GMT on day 280. In general
times are rough, not precise.)

PLAN
Continue running ACIS-S/HETG observation of SN1987a. This now has
  the OBSID of 1387, following change of ACIS mode to 3x3 from 5x5.
  The original OBSID was 124.

From GMT 13:10 until 21:45 we will perform the ACIS CTI 
measurements at -120 C. This will "take away" the extra time
that had been scheduled for OBSID 124 (now 1387). Then we will
allow the on-board daily load to perform the usual -110 deg 
CTI pre and post belt measurements. 


EVENTS
13:10  AOS Madrid.
13:40  Moving SIM to HRC-S. Lose fid lights. Lose 3 stars while moving.
13:46  End of SIM motion. SIM TTpos = -99608. Return to normal pointing
	mode recovers all 5 stars.


NOTES/ISSUES/PROBLEMS
At start of shift, Chandra's state from the last LOS, 
280:07:44, was as follows:

       PCAD MODE              =       NPNT
       CONTROL LAW FLAG       =       NPNT
       Stars:                 =          5  
       FIDS                   =          3 
       RA                     =  83.892 deg
       DEC                    = -69.291 deg
       ROLL                   =  71.878 deg
       Format                 =          2
       OBSID                  =       1387
       SIM FA                 =       -467
       SIM TSC                =     75623 (ACIS-S)
       HETG                  =      IN
       LETG                  =      out
        HRC HV is OFF


-------------------------------------------------------
Dan Schwartz,	MS #3
das@head-cfa.harvard.edu  
phone: (617)495-7232    FAX:   (617)495-7356
cell phone: (617)512-5627   
pager: 800-759-8352 PIN 1636502
       or e-mail 1636502@skytel.com 
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