2002-06-13T17:56:29.000
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System               = GRS
Author               = mward
Institution          = UofAz
Start_time           = 06/13/02 17:10
Stop_time            = 06/13/02 18:55
Send_time            = Thu Jun 13 17:56:29 GMT 2002
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Purpose:
Change the IS autonomous ramp down trip point from 143K to 135K.  Tighten CEB
heater control using the VREF temperature sensor by changing the collection
period from 40 seconds to 20 seconds. Change the MR control setpoints from
-45C to -60C.  Switch CEB heater control from VREF to PS2.  Switch GPA control
Expected result:
The IS autonomous HV ramp down trip point will be lowered from 143K to 135K. 
The CEB will be control tightly around 3.7C. The MR set point will be lowered
to -60C. An orbit later, the alt actuator current collection will be changed
from 20 seconds to 5 seconds. One half an orbit later, the CEB heater control
will be changed from using the VREF sensor to using the PS2 sensor. Another
one half an orbit later, the GPA heater will be switched from using GPA2 to
using GPA3. Another orbit later, the alt actuator current will be switched
back to 20 second collection on timer 2.  Then a nominal dump will be
Why it is needed:
To improve detector resolution by removing some of the temperature
drift-related effects. And to determine the warmest temperature for the
mounting ring (in case of safemode entry) while still allowing total
Commands to be sent:
/home/grs2001/software/SC_Commands/Deployed_1/bce_bcf/c01grs_ceb_htr_ctrl_init
 2761,    immediate, CHG_ANALOG, CEB_IS_TEMP_A, LESS_COMPARE_VALUE, 4484
 2974,    immediate, CHG_ANALOG, GAMMA_VREF_TEMP, COLLECTION, 3
 2707,    immediate, CHG_ANALOG, CEB_PS2_TEMP, COLLECTION, 3
 2806,    immediate, CHG_ANALOG, CEB_MNT_RNG_TEMP_A, LESS_COMPARE_VALUE, 1277
 2807,    immediate, CHG_ANALOG, CEB_MNT_RNG_TEMP_A, GREATER_COMPARE_VALUE,
 1243, +    1-0    , CHG_ANALOG, CEB_ALT_ACTUATOR_CURR, COLLECTION, 2
 2732, +    1-178  , CHG_ANALOG, CEB_PS2_TEMP, LESS_COMPARE_VALUE, 15997
 2733, +    1-178  , CHG_ANALOG, CEB_PS2_TEMP, GREATER_COMPARE_VALUE, 15998
 2712, +    1-178  , CHG_ANALOG, CEB_PS2_TEMP, OUT_OF_RANGE, 0
 2968, +    1-179  , CHG_ANALOG, GAMMA_VREF_TEMP, COMPARE_SETTING, 0
 1049, +    1-180  , EXEC_SEQ, 49, 0
 2450, +    1-359  , CHG_ANALOG, GAMMA_GPA_TEMP, COMPARE_SETTING, 0
 1021, +    2-0    , EXEC_SEQ, 21, 0
 1244, +    3-0    , CHG_ANALOG, CEB_ALT_ACTUATOR_CURR, COLLECTION, 3
 1041, +    3-3    , EXEC_SEQ, 41, 0 +      7260 , CHG_ANALOG, CEB_OS_TEMP_A,
 2068, +     14460 , CHG_ANALOG, CEB_OS_TEMP_A, COLLECTION, 2
 2796, +     14460 , CHG_ANALOG, GAMMA_GPA_TEMP, COLLECTION, 2
 2797, +     14460 , CHG_ANALOG, GAMMA_GPA_TEMP, OUT_OF_RANGE, 0
 2742, +     28860 , CHG_ANALOG, GAMMA_GPA_TEMP, LESS_COMPARE_VALUE, 6356
 2785, +     43260 , CHG_ANALOG, CEB_MNT_RNG_TEMP_A, LESS_COMPARE_VALUE, 7
 2786, +     43260 , CHG_ANALOG, CEB_MNT_RNG_TEMP_A, GREATER_COMPARE_VALUE, 50
 1041, +     43320 , EXEC_SEQ, 41, 0
 1151, +     43680 , DUMP_SEQ, 1, 1CHG_ANALOG, CEB_IS_TEMP_A, OUT_OF_RANGE, 3
 2801, +      4065 , CHG_ANALOG, CEB_IS_TEMP_A, GREATER_COMPARE_VALUE, 5059
 2760, +      4065 , CHG_ANALOG, CEB_IS_TEMP_A, SEQUENCE, 175
 2052, +      4070 , CHG_ANALOG, CEB_IS_TEMP_A, COMPARE_SETTING, 2
 1111, +      5870 , EXEC_SEQ, 11, 1
 1041, +      5955 , EXEC_SEQ, 41, 0Contingency