Thermal History

The ATC/TC settings determine the thermal environment of the OBM and the detectors. In order to maintain the temperature regime applicable to the on-ground calibration results, it is required to apply particular settings to

Modifications of the settings are either a result of a monitoring procedure or an ARB. The tables below provide the history of these settings starting with the first nominal settings as derived in the Commissioning Phase. The column labelled 'ABS_ORB' denotes the orbit when the listed settings had become effective, 'UTC' indicates the start time of the modification.

Select year: 2008 / 2007 / 2006 / 2005 / 2004 / 2003 / 2002


Year 2008
ATC (Optical Bench Module Temperature)
ABS_ORB ANX Parameter Value
09-May-2012: ESA declares ENVISAT mission ended!
34643 15-OCT-2008 07:17:06 Setpoint_Temp_1 (RAD-A) -21.60 ºC
Setpoint_Temp_2 (Nadir) -16.25 ºC
Setpoint_Temp_3 (Limb) -15.15 ºC
Sensor_Gain_Factor_1 -0.920
Sensor_Gain_Factor_2 -1.135
Sensor_Gain_Factor_3 -1.183
TC (Detector Temperatures)
ABS_ORB UTC Parameter Value
31968 11-APR-2008 10:09:48 DAC_1 PWR (SRC CS Heater) 0.53 W
DAC_2 PWR (TB Trim Heater) 0.50 W
DAC_3 PWR (TB Trim Heater) 0.00 W
30566 04-JAN-2008 11:40:47 DAC_1 PWR (SRC CS Heater) 0.53 W
DAC_2 PWR (TB Trim Heater) 0.50 W
DAC_3 PWR (TB Trim Heater) 0.03 W
Year 2007
TC (Detector Temperatures)
ABS_ORB UTC Parameter Value
26945 26-APR-2007 12:20:22 DAC_1 PWR (SRC CS Heater) 0.53 W
DAC_2 PWR (TB Trim Heater) 0.50 W
DAC_3 PWR (TB Trim Heater) 0.00 W
26441 22-MAR-2007 07:22:58 DAC_1 PWR (SRC CS Heater) 0.53 W
DAC_2 PWR (TB Trim Heater) 0.70 W
DAC_3 PWR (TB Trim Heater) 0.00 W
25540 18-JAN-2007 08:50:41 DAC_1 PWR (SRC CS Heater) 0.53 W
DAC_2 PWR (TB Trim Heater) 0.70 W
DAC_3 PWR (TB Trim Heater) 0.03 W
Year 2006
TC (Detector Temperatures)
ABS_ORB UTC Parameter Value
21245 24-MAR-2006 07:31:16 DAC_1 PWR (SRC CS Heater) 0.53 W
DAC_2 PWR (TB Trim Heater) 0.70 W
DAC_3 PWR (TB Trim Heater) 0.00 W
20143 06-JAN-2006 07:59:25 DAC_1 PWR (SRC CS Heater) 0.53 W
DAC_2 PWR (TB Trim Heater) 0.70 W
DAC_3 PWR (TB Trim Heater) 0.03 W
Year 2005
TC (Detector Temperatures)
ABS_ORB UTC Parameter Value
16192 05-APR-2005 07:23:53 DAC_1 PWR (SRC CS Heater) 0.53 W
DAC_2 PWR (TB Trim Heater) 0.70 W
DAC_3 PWR (TB Trim Heater) 0.00 W
Year 2004
TC (Detector Temperatures)
ABS_ORB UTC Parameter Value
14632 17-DEC-2004 07:59:32 DAC_1 PWR (SRC CS Heater) 0.53 W
DAC_2 PWR (TB Trim Heater) 0.70 W
DAC_3 PWR (TB Trim Heater) 0.03 W
11372 03-MAY-2004 13:54:35 DAC_1 PWR (SRC CS Heater) 0.53 W
DAC_2 PWR (TB Trim Heater) 0.70 W
DAC_3 PWR (TB Trim Heater) 0.00 W
10911 01-APR-2004 09:02:16 DAC_1 PWR (SRC CS Heater) 0.53 W
DAC_2 PWR (TB Trim Heater) 0.73 W
DAC_3 PWR (TB Trim Heater) 0.03 W
10681 16-MAR-2004 07:26:47 DAC_1 PWR (SRC CS Heater) 0.62 W
DAC_2 PWR (TB Trim Heater) 0.73 W
DAC_3 PWR (TB Trim Heater) 0.03 W
10023 30-JAN-2004 08:18:24 DAC_1 PWR (SRC CS Heater) 0.65 W
DAC_2 PWR (TB Trim Heater) 0.70 W
DAC_3 PWR (TB Trim Heater) 0.06 W
Year 2003
TC (Detector Temperatures)
ABS_ORB UTC Parameter Value
9227 05-DEC-2003 16:36:01 DAC_1 PWR (SRC CS Heater) 0.59 W
DAC_2 PWR (TB Trim Heater) 0.70 W
DAC_3 PWR (TB Trim Heater) 0.03 W
8591 22-OCT-2003 07:17:58 DAC_1 PWR (SRC CS Heater) 0.59 W
DAC_2 PWR (TB Trim Heater) 0.76 W
DAC_3 PWR (TB Trim Heater) 0.00 W
7417 01-AUG-2003 06:45:38 DAC_1 PWR (SRC CS Heater) 0.59 W
DAC_2 PWR (TB Trim Heater) 0.76 W
DAC_3 PWR (TB Trim Heater) 0.03 W
6301 15-MAY-2003 07:37:00 DAC_1 PWR (SRC CS Heater) 0.59 W
DAC_2 PWR (TB Trim Heater) 0.76 W
DAC_3 PWR (TB Trim Heater) 0.00 W
5887 16-APR-2003 09:32:01 DAC_1 PWR (SRC CS Heater) 0.59 W
DAC_2 PWR (TB Trim Heater) 0.83 W
DAC_3 PWR (TB Trim Heater) 0.03 W
5207 27-FEB-2003 21:31:30 DAC_1 PWR (SRC CS Heater) 0.59 W
DAC_2 PWR (TB Trim Heater) 0.9497 W
DAC_3 PWR (TB Trim Heater) 0.03 W
5119 21-FEB-2003 16:51:00 DAC_1 PWR (SRC CS Heater) 0.59 W
DAC_2 PWR (TB Trim Heater) 0.9497 W
DAC_3 PWR (TB Trim Heater) 0.06 W
5062 17-FEB-2003 17:17:29 DAC_1 PWR (SRC CS Heater) 0.59 W
DAC_2 PWR (TB Trim Heater) 0.87 W
DAC_3 PWR (TB Trim Heater) 0.06 W
Year 2002
ATC (Optical Bench Module Temperature)
ABS_ORB ANX Parameter Value
1454 10-JUN-2002 15:54:52 Setpoint_Temp_1 (RAD-A) -21.6 ºC
Setpoint_Temp_2 (Nadir) -16.4 ºC
Setpoint_Temp_3 (Limb) -15.0 ºC
Sensor_Gain_Factor_1 -0.92
Sensor_Gain_Factor_2 -1.12
Sensor_Gain_Factor_3 -1.20
TC (Detector Temperatures)
ABS_ORB UTC Parameter Value
1454 10-JUN-2002 15:54:52 DAC_1 PWR (SRC CS Heater) 0.55 W
DAC_2 PWR (TB Trim Heater) 0.48 W
DAC_3 PWR (TB Trim Heater) 0.0 W


Page generated 11 March 2003; last update: 10 May 2012