ACIS SOT Shift report M3016 Oct 24, 2007 19:45 EDT, 2007:297:23:45 GMT COMM Periods: = 2007 Oct 24 7:45 pm EDT = 2007 Oct 25 12:44 am EDT See http://asc.harvard.edu/acis/SOT_reports/sot_shift.html or /proj/web-cxc/htdocs/acis/SOT_reports/Oct_24_2007_M3016_acis.txt ACIS Personnel: Royce Buehler PLAN: ----- We plan to continue monitoring the ACIS detector housing cooling test that is being performed during the Chandra Deep Field South observation (OBSID 8596). The command to turn off the heater was executed in the load at: 2007:297:12:57:14.437 COMMAND_HW 1HHTRBOF and the heater will be turned on again at: 2007:298:20:07:39.016 COMMAND_HW 1HHTRBON for a total of about 113 ks of cooling time. SUMMARY: ------- Comm came up on schedule. The telemetry seen was: 1DAHTBEN=EN 1DAHTBON=OFF 1DAHHBVO= 28.88 (value of the mean over 10 samples) 1DAHBVO= 0.0 (value of the mean over 10 samples) 1DAHBCU= 0.0 (value of the mean over 10 samples) 1CBBT= -67.29 (value of the mean over 10 samples) 1CBAT= -67.29 (value of the mean over 10 samples) 1WRBT= -84.45 (value of the mean over 10 samples) 1WRAT= -84.45 (value of the mean over 10 samples) At the end of the contact, about half an hour before the scheduled 2007:298:01:15, telemetry values were identical, except that the 10 sample average for 1DAHHBV0 was 28.86. There is a comm pass scheduled in the load for 2007:298:18:10, during which the commands will be issued to enable the ACIS detector housing heater and power it back on.