To:sot_shift
from: Dan Schwartz
date: 18 Oct 99 , 11:00am EDT
Subject: SOT shift report, Shift L87
--------
See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or 
/proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Oct_18_1999_L87.txt.

Shift L87. 
	Start at 291:11:00  GMT
		 = 07:00am 18 Oct EDT
	End	   11:00am 18 Oct
   
SOT Lead	DAS
Spac/Aspect	
FOT/Sci liason	
HRC		
ACIS 		

(Times will be given in GMT on day 291. In general
times are rough, not precise.)

PLAN
Running on load P22c.
Intervene to reset FEPs for OBSID 320.
At start of shift Chandra's state was 

       PCAD MODE              =       NPNT
       CONTROL LAW FLAG       =       NPNT
       Stars:                 =          5  
       FIDS                   =          3 
       RA                     =    358.764 deg
       DEC                    =   28.660 deg
       ROLL                   =   233.509 deg
       Format                 =          2
       OBSID                  =      1451

       SIM FA                 =       -467
       SIM TSC                =     75623 (ACIS-S)
       HETG                  =     IN
       LETG                  =     OUT
        HRC HV is OFF

EVENTS
Real time comm ends 13:21.
Chandra's state at that time was as follows:

       PCAD MODE              =       NMAN
       CONTROL LAW FLAG       =       NPNT
       Stars:                 =          0  
       FIDS                   =          0 
       RA                     =   
       DEC                    =   
       ROLL                   =   
       Format                 =          2
       OBSID                  =      320
       SIM FA                 =       -467
       SIM TSC                =     75623 (ACIS-S)
       HETG                  =     IN
       LETG                  =     OUT
        HRC HV is OFF

NOTES/ISSUES/PROBLEMS
We have so far seen no sign of the solar flare and CME which occured
on Oct 14. We have been watching the EPHIN leakage current rates,
which remained near 0.2 microamp. At 291:12:00 HRC shield 
rates were normal, at ~4600 per sec.

We could not schedule Comm to intervene in OBSID 320. It will
be run with its original configuration, using FEP 0 on S3.
This is an 11 Ksec ACIS-I imaging, on NGC 1399.

The rebuilt loads will not be picked up until 293:05 GMT. Until then,
to support necessary ACIS intervention we need to schedule 
additional contacts as follows.

seq #   OBSID   target  start   time						Contact:
600080  320     NGC 1399        1999:291:14:16:06.6     11      ACIS-I  NONE	not available
rad belt entry -- Safing verification	291:17:20				17:55		
	62347	CTI measurement	291:23:18					need
	62346	CTI measurement 292:06:55					need
800057  549     RX J1720.1+2638 1999:292:10:16:30.7     10      ACIS-I  NONE	have 1000-11:45
800061  553     ABELL 2218      1999:292:13:32:45.4     20      ACIS-I  NONE	need
400020  107     CYG X-1 	1999:292:19:35:53.9     15      ACIS-S  HETG	need (have 21:20)
400014  101     CYG X-3 	1999:293:00:05:11.1     20      ACIS-S  HETG	need

-------------------------------------------------------
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 
-------------------------------------------------------