ACIS SOT Shift report M3011 Oct 19, 2007 6:50 EDT,2007:292:22:50 GMT
	COMM Period:
		= 2007 Oct 19	 6:50 pm EDT
	End	= 2007 Oct 19	 8:20 pm EDT (extended to 8:50)
See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html or
/proj/web-cxc/htdocs/acis/SOT_reports/Oct_19_2007_M3011_acis.txt

ACIS Personnel:
Joseph DePasqule

PLAN:
----
 We plan to monitor the ACIS detector housing cooling test that is
being performed during the Chandra Deep Field South observation (OBSID
8595).  The command to turn off the heater was executed in the load
at:

2007:292:14:02:39.122    COMMAND_HW 1HHTRBOF
 
and the heater will be turned on again at:

2007:293:21:02:21.777    COMMAND_HW 1HHTRBON

for a total of about 117 ks of cooling time.  

SUMMARY:
-------
  There were some problems aquiring signal at the beginning of the COM
pass.  By 7:10pm EDT, we had a strong signal and verified that the
detector housing side B heater had indeed been turned off in the load.
Both A and B side camera body temperatures had cooled to -67.3 C and
remained there for the duration of the COM pass.  

The telemetry seen was:

1DAHTBEN=EN
1DAHTBON=OFF
1DAHHBVO= 28.84   (value of the mean over 10 samples)
1DAHBVO= 0.00     (value of the mean over 10 samples)
1DAHBCU= 0.00     (value of the mean over 10 samples)
1CBBT= -67.3      (value of the mean over 10 samples)
1CBAT= -67.3      (value of the mean over 10 samples)
1WRBT= -84.5	  (value of the mean over 10 samples)
1WRAT= -84.5	  (value of the mean over 10 samples)