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NOAA 18 SBUV Subsystem Summary

Component Description Status
CALIBRATORSolar Backscatter Ultraviolet Spectral Radiometer - CalibratorGreen
CHOPPER MOTORSolar Backscatter Ultraviolet Spectral Radiometer - Chopper MotorRed
DIFFUSERSolar Backscatter Ultraviolet Spectral Radiometer - DiffuserGreen
ELECTRONICSInstrument electronics suiteGreen
FLEX MEMORYFlex memory portion of the SBUV processorGreen
GRATING DRIVESolar Backscatter Ultraviolet Spectral Radiometer - Grating DriveGreen
OPTICSOptical sub component suiteGreen


Subsystem History:

Date Time Component Description
11/13/201416:31:40FLEX MEMORYModify Flex 1, Segment 0, Word 14, Position Mode wavelength, to GPOS -1263 (378nm)
03/21/201316:54:30CHOPPER MOTORThis will call Macro 0010 twenty times. The SBUV motors will be power toggled for a duration of approximately 200 seconds. This CP will also deactivate both macros, then reactivate Macro 004B which monitors for 40 C.
01/24/201317:03:13 Turned off the calibration lamp heater
01/16/201316:59:10CHOPPER MOTORThis activates the power toggle, Macro 10, and will leave the SBUV powered, which is the upper temp macro was previously enabled for protection
01/16/201316:57:56CHOPPER MOTORSwitched from previous macro toggling to 4B/4C toggling; 40C turn off with 2 orbit delay before toggle on sequence
01/03/201314:13:46CHOPPER MOTORMacro changed from 40C and 28C to 40C and 35C in hopes that a power toggle at a higher temperature will revive the chopper motor.
12/21/201216:43:47 Setting the wavelength to 252nm short wavelength allows for any subtle movement from the chopper motor to be more easily identified
12/21/201216:43:32GRATING DRIVECommand will set the grating drive to position mode
12/21/201216:39:17 This command will open the lamp door
12/21/201216:37:45 This will command will stow the diffuser
12/20/201218:00:00 Removed all routine SBUV stored commands load activites
12/12/201208:07:22Chopper MotorChopper Motor stalled and 3 macros are power cycling the motor.
09/14/201015:26:03FLEX MEMORYSets word 14 of sement 0 to -1262 (378.6 nm)
11/25/200820:45:59CHOPPER MOTORActivate CPU Macro 16
11/25/200820:45:34CHOPPER MOTORDeactivate CPU Macro 14
11/25/200820:41:52CHOPPER MOTORLoad CPU Macro 16 - SBUV Motor Turn Off at 40 C.
11/25/200820:39:44CHOPPER MOTORLoad CPU Macro 15 - SBUV Motor Toggle On at 28C.
11/12/200819:28:47FLEX MEMORYWrote position -1571 (400 nm) to Flex 1, Segment 0, buffer 14. (nominal value)
11/12/200819:28:09CALIBRATORSBUV Calibration Lamp Heater ON
11/12/200803:27:45CHOPPER MOTORThe N18 SBUV Chopper Motor returned to nominal operation at 2008/317-03:27:45 UTC.
11/10/200821:36:00 Turn off Calibration Lamp Heaters
11/10/200821:36:00 Program position mode to 252 nm
11/10/200821:36:00 Select grating to position mode
11/09/200806:52:16CHOPPER MOTORChopper Motor Stalled. SBUV Toggling Macro switched from 21C to 24C set point.
11/09/200802:35:00CHOPPER MOTORAt approximately 2008/314-02:35 UTC the Chopper Motor on the NOAA-18 SBUV stalled. The signature was identical to previous occurrences of the motor stall that were observed early this summer.
08/22/200818:40:06ELECTRONICSSBUV Range 3 To Anode
08/22/200818:39:29CALIBRATORSBUV Calibration Lamp Heater On
08/12/200814:00:00CHOPPER MOTORSBUV returning to nominal operations
07/22/200820:51:35GRATING DRIVESBUV Grating Motor operating in Mode 1 (Discrete)
07/20/200816:00:00CHOPPER MOTORSBUV partial operations restored. Analysis pending before returning to full operational mode.
07/01/200817:48:23CHOPPER MOTORSBUV Motor Power Off
07/01/200817:45:06CHOPPER MOTORExecute CPU Macro 10 - 10 SBUV Motor Power Toggle On/Off
07/01/200817:41:24CHOPPER MOTORExecute CPU Macro 10 - 10 SBUV Motor Power Toggle On/Off
07/01/200817:39:43CHOPPER MOTORSBUV Motor Power Off
07/01/200817:37:11CHOPPER MOTORExecute CPU Macro 10 - 10 SBUV Motor Power Toggle On/Off
06/30/200819:32:06CALIBRATORSBUV Heaters Off
06/27/200815:21:57CHOPPER MOTORSBUV Motor Power Off
06/27/200815:20:03CHOPPER MOTORExecute CPU Macro 10 - 10 SBUV Motor Power Toggle On/Off
06/27/200815:19:27CHOPPER MOTORSBUV Motor Power Off
06/27/200815:18:15CHOPPER MOTORExecute CPU Macro 10 - 10 SBUV Motor Power Toggle On/Off
06/27/200815:15:23CHOPPER MOTORExecute CPU Macro 10 - 10 SBUV Motor Power Toggle On/Off
06/27/200815:14:41CHOPPER MOTORExecute CPU Macro 10 - 10 SBUV Motor Power Toggle On/Off
06/27/200815:13:52CHOPPER MOTORExecute CPU Macro 10 - 10 SBUV Motor Power Toggle On/Off
06/26/200820:27:40CHOPPER MOTORSBUV Motor Power Off
06/26/200820:25:54CHOPPER MOTORExecute CPU Macro 10 - 10 SBUV Motor Power Toggle On/Off
06/26/200820:24:34CHOPPER MOTORExecute CPU Macro 10 - 10 SBUV Motor Power Toggle On/Off
06/26/200820:24:11GRATING DRIVESBUV Grating Mode 4 (Position)
06/26/200820:21:42FLEX MEMORYWrite position 468 (252 nm) to Flex 1, Segment 0, buffer 14.
06/11/200819:35:40CHOPPER MOTORTurn Off SBUV Motor Power
06/11/200819:34:50CHOPPER MOTORCPU Macro 10 - Motor Power Turn On then Off, 1 second cycle, 10 cycles, ends On
06/11/200819:34:23CHOPPER MOTORCPU Macro 10 - Motor Power Turn On then Off, 1 second cycle, 10 cycles, ends On
06/11/200819:34:04CHOPPER MOTORCPU Macro 10 - Motor Power Turn On then Off, 1 second cycle, 10 cycles, ends On
06/11/200819:31:34CHOPPER MOTORCPU Macro 10 - Motor Power Turn On then Off, 1 second cycle, 10 cycles, ends On
06/11/200819:30:44CHOPPER MOTORCPU Macro 10 - Motor Power Turn On then Off, 1 second cycle, 10 cycles, ends On
06/11/200819:29:13CHOPPER MOTORCPU Macro 10 - Motor Power Turn On then Off, 1 second cycle, 10 cycles, ends On
06/11/200817:55:55CHOPPER MOTORTurn Off SBUV Motor Power
06/11/200817:54:55CHOPPER MOTORCPU Macro 10 - Motor Power Turn On then Off, 1 second cycle, 10 cycles, ends On
06/11/200817:54:31CHOPPER MOTORCPU Macro 10 - Motor Power Turn On then Off, 1 second cycle, 10 cycles, ends On
06/11/200817:54:01CHOPPER MOTORCPU Macro 10 - Motor Power Turn On then Off, 1 second cycle, 10 cycles, ends On
06/11/200817:53:10CHOPPER MOTORCPU Macro 10 - Motor Power Turn On then Off, 1 second cycle, 10 cycles, ends On
06/11/200817:51:47CHOPPER MOTORCPU Macro 10 - Motor Power Turn On then Off, 1 second cycle, 10 cycles, ends On
06/11/200817:50:41CHOPPER MOTORCPU Macro 10 - Motor Power Turn On then Off, 1 second cycle, 10 cycles, ends On
06/11/200817:48:56CHOPPER MOTORCPU Macro 10 - Motor Power Turn On then Off, 1 second cycle, 10 cycles, ends On
06/11/200817:45:32 Load the CPU Macro #10 to toggle the SBUV motor power every 0.5 seconds, for 10 seconds.
06/06/200815:37:13CHOPPER MOTORSBUV Motor Power Toggle, 6 on/off cycles, ~ 20 seconds per cycle, final state is motor power off.
06/06/200815:36:58CHOPPER MOTORSBUV Chopper Encoder Backup Selected
06/06/200815:34:02CHOPPER MOTORSBUV Motor Power Toggle, 6 on/off cycles, ~ 20 seconds per cycle, final state is motor power off.
06/06/200815:31:52CHOPPER MOTORSBUV Motor Power Toggle, 6 on/off cycles, ~ 20 seconds per cycle, final state is motor power off.
06/06/200815:31:42CHOPPER MOTORSBUV Chopper Encoder Primary Selected
06/06/200813:58:41CHOPPER MOTORSBUV Motor Power Toggle, 6 on/off cycles, ~ 20 seconds per cycle, final state is motor power off.
06/06/200813:56:42CHOPPER MOTORSBUV Motor Power Toggle, 6 on/off cycles, ~ 20 seconds per cycle, final state is motor power off.
06/06/200813:54:34CHOPPER MOTORSBUV Motor Power Toggle, 6 on/off cycles, ~ 20 seconds per cycle, final state is motor power off.
06/06/200813:51:49CHOPPER MOTORSBUV Motor Power Toggle, 6 on/off cycles, ~ 20 seconds per cycle, final state is motor power off.
06/06/200813:51:39ELECTRONICSSBUV High Voltage Power Supply On
06/06/200813:51:21ELECTRONICSSBUV High Voltage Power Supply Enable
05/27/200818:48:06CHOPPER MOTORTurn off SBUV motor power.
05/27/200818:44:36CHOPPER MOTORChopper Motor Backup Encoder selected for testing.
05/27/200817:04:41CHOPPER MOTORTurn On SBUV Motor Power
05/27/200817:03:19ELECTRONICSTurn on SBUV instrument power: High Voltage Power Supply (HVPS) disabled and turned off.
05/27/200817:03:18GRATING DRIVETurn on SBUV instrument power: Purpose is to reset grating drive logic so drive will park when motor power is turned on
05/23/200816:17:41CHOPPER MOTORTelemetry and Science Data indicated the Chopper Motor is halted. Power was still being disipated through the motor and causing it to heat excessively. The motor power was disabled in an attempt to protect the instrument while recovery options are being weighed. Science Data is currently unusable.
05/22/200815:55:00CHOPPER MOTOROn 2008/143 at approximately 15:55 UTC, there was an increase in motor current (VCMTRI) and subsequent temperature (NSBUCMTR) rise on the N18 SBUV Chopper Motor. Coupled to the motor current rise were changes in the Chopper Phase Error (VCPHZERR). The yellow and red high limits to the motor current and motor temperatures began flagging and were spotted on the first contact, at 17:50 UTC, following the increase. Around 20:30 UTC of the same day, the motor current reached a steady state at 0.2 A (ten times nominal levels) and the motor temperature settled near 50 C. Other components in the instrument began showing slow upward trends in telemetry.
10/03/200503:50:00 Switch to segment 3, execute wavelength calibration test, return to segment 0
10/02/200504:00:00 Reload normal operating wavelengths into Flex 1, segment 3
10/01/200504:10:00 Load 2-step wavelengths for 253.7 nm in Flex 1, segment 3
09/12/200519:00:00 Make correction to SBUV load in Flex Memory-1, Segment-1, Grating Position 66, Word 11.
08/23/200502:20:00 Switch to segment 3, execute wavelength calibration test, return to segment 0
08/23/200501:01:00 Load 2-step wavelengths for 253.7 nm in Flex 1, segment 3
08/18/200502:00:00 Places ozone wavelengths in seg 3
08/17/200502:00:00 Places ozone wavelengths in seg 2.
08/16/200502:00:00 Changes the position mode wavelength for the ozone measurement in segment 0 using MgII wavelengths.
08/15/200523:55:00 Diffuser to stow position
08/15/200520:35:00 Diffuser to Sun position
08/15/200518:40:00 Select segment 0
08/15/200515:35:00 Strobe memory segment selection
08/15/200512:16:00 Select segment 3
08/15/200512:15:00 Load grating positions and begin taking data
07/06/200514:00:00ELECTRONICSSET SBUV to anode mode
07/05/200517:15:00ELECTRONICSSet SBUV to Cathode Mode
06/28/200515:21:00GRATING DRIVEStrobe SBUV Command
06/28/200515:20:00GRATING DRIVESelect Segment 0
06/20/200518:05:00CALIBRATORTurn on SBUV Calibration Lamp Heater after it was inadvertently left off.
06/17/200512:00:00CALIBRATORDuring the N18 SBUV diffuser decontamination sequence which was performed out of the SCT, the calibration lamp heater was inadvertently left off.
06/13/200519:15:00FLEX MEMORYCorrect (Reload) SBUV memory words in segment 2 and3
06/08/200513:40:00 SBUV range-3 to anode
06/06/200515:44:00CALIBRATORSBUV lamp assembly opened
06/05/200522:30:00GRATING DRIVESBUV flex memory-1 select, CXPIO 34CQ, SBUV strobe.
06/05/200520:55:00GRATING DRIVESBUV grate position-1, flex memory-2 select, CXPIO 34CQ, SBUV strobe.
06/05/200517:36:00 Write 380 nm into position mode location of Flex Memory-1 segment. Open lamp assembly door and go to position mode-1.
06/05/200501:30:00CALIBRATORSBUV lamp disabled
06/04/200519:10:00GRATING DRIVESBUV grate position 1
06/04/200517:25:00GRATING DRIVESBUV grate position 4
06/04/200516:05:00GRATING DRIVESBUV grate 2 sweep
06/04/200514:20:00 SBUV high voltage ENABLED.
06/03/200516:15:00 SBUV commanded to high voltage mode
06/02/200501:15:00 SBUV multiple code strobes
05/27/200518:15:00 SBUV code strobed.
05/27/200516:25:35OPTICSPowered on
05/27/200516:25:30GRATING DRIVEPowered on using flex memory 2.
05/27/200516:25:25FLEX MEMORYFlex memory 2 selected
05/27/200516:25:20ELECTRONICSPowered on
05/27/200516:25:15DIFFUSERPowered on
05/27/200516:25:10CHOPPER MOTORPowered on
05/27/200516:25:05CALIBRATORPowered on
05/27/200516:25:00 SBUV Turnon parts 1 and 2