NOAA Office of Satellite and Product Operations

NOAA 15 AMSU-B Subsystem Summary

Component Description Status
CHANNEL 16 Radiometric Channel 16, 89.0 GHz Green
CHANNEL 17 Radiometric Channel 17, 150.0 GHz Green
CHANNEL 18 Radiometric Channel 18, 183.31 GHz Red
CHANNEL 19 Radiometric Channel 19, 183.31 GHz Red
CHANNEL 20 Radiometric Channel 20, 183.31 GHz Red
ICE Inductosyn Control Electronics Green
MDE Motor Drive Electronics Green
OSCILLATOR oscillator Red
PEU Processor Electronics Unit Green
PSU Power Supply Unit Green
SCAN MOTOR Instrument Scan Motor Red

Subsystem History:

Date Time Component Description
08/23/2011 14:00:00 SCAN MOTOR Macro 22 (N15_AMSUBTOG) will be activated every Tuesday, at 14:00 UTC, from this point forward, to power cycle the AMSU-B Scan Motor in an attempt to recover motor rotation.
07/19/2011 16:42:27   AMSU-B Power Cycled Manually via SCP Macro 22 - Motor Recovery Attempt
07/12/2011 14:35:24   AMSU-B Power Cycled Manually via SCP Macro 22 - Motor Recovery Attempt
05/12/2011 17:22:16   AMSU-B Turned On
05/11/2011 16:11:39   AMSU-B Turned Off
05/11/2011 16:06:33   AMSU-B Turned On
05/10/2011 21:20:52   AMSU-B Survival Heater On
05/10/2011 21:20:22   AMSU-B Turned Off
05/10/2011 21:14:10   AMSU-B Turned On
05/10/2011 16:39:03   AMSU-B Survival Heater On
05/10/2011 16:38:39   AMSU-B Turn Off
05/10/2011 16:34:11   AMSU-B Turn On
05/10/2011 13:14:36   AMSU-B Survival Heater On
05/10/2011 13:12:54   AMSU-B Turned Off
03/29/2011 19:50:00 SCAN MOTOR Final attempt to command AMSU-B into Scan Normal Mode; instrument would not accept commands.
03/29/2011 19:49:00 SCAN MOTOR Attempted to park the AMSU-B at the Warm Target as a test; instrument did not accept commands.
03/29/2011 19:48:00 SCAN MOTOR Attempted to park the AMSU-B at the Space View Position as a test; instrument rejected commands.
03/29/2011 19:44:00 SCAN MOTOR Attempted to command the AMSU-B into Scan Normal Mode; instrument rejected commands.
03/29/2011 16:45:00 SCAN MOTOR Executed AMSU-B Normal Turn On Sequence. Space View and Target View select commands were rejected by instrument. Channels were turned back on.
03/29/2011 16:40:00 SCAN MOTOR Executed AMSU-B Turn Off Sequence.
03/29/2011 15:00:00 SCAN MOTOR As part of the nominal recovery process, an attempt was made to park the AMSU-B at the Warm Target position. Instrument failed to accept this command.
03/28/2011 22:45:18 SCAN MOTOR On March 28, 2011, at 22:45:18z, the Scan Motor stalled; Motor Current droped from ~180 to ~14 mA.
09/20/2010 17:52:46 CHANNEL 20 Channel 20 Failed
09/20/2010 17:52:46 CHANNEL 19 Channel 19 Failed
09/20/2010 17:52:46 CHANNEL 18 Channel 18 Failed
09/20/2010 17:52:46 OSCILLATOR Channel 18-20 Local Oscillator Failed.
09/16/2010 19:28:00 CHANNEL 16 Channel 16 Functional after Channel 18-20 Oscillator turned off.
09/16/2010 19:28:00 CHANNEL 20 Channel 20 Turned Off
09/16/2010 19:28:00 CHANNEL 19 Channel 19 Turned Off
09/16/2010 19:28:00 CHANNEL 18 Channel 18Turned Off
09/14/2010 22:30:06 CHANNEL 20 Channel 20 Signal degraded
09/14/2010 22:30:06 CHANNEL 19 Channel 19 Signal degraded
09/14/2010 22:30:06 CHANNEL 18 Channel 18 Signal degraded due to failed Channel 18-20 Oscillator
09/14/2010 22:30:06 CHANNEL 16 Channel 16 Signal Degraded due to inteference from Channel 18-20 Oscillator .
08/10/2003 12:20:00 SCAN MOTOR AMSU-B scan motor current and component termperature surge duration of 45 minutes
05/20/2003 09:23:00 SCAN MOTOR AMSU-B scan motor current and component termperature surge duration of 1.5 hrs.
04/13/2003 04:00:00 SCAN MOTOR AMSU-B scan motor current and component termperature surge duration of 24 hrs.
11/03/1998 00:00:00 CHANNEL 20 Gradient bias no longer present due to STX1 deactivation
11/03/1998 00:00:00 CHANNEL 19 Gradient bias no longer present due to STX1 deactivation
11/03/1998 00:00:00 CHANNEL 17 Gradient bias no longer present due to STX1 deactivation
05/20/1998 00:00:00 CHANNEL 20 Gradient bias observed due to interference from STX1
05/20/1998 00:00:00 CHANNEL 19 Gradient bias observed due to interference from STX1
05/20/1998 00:00:00 CHANNEL 17 Gradient bias observed due to interference from STX1
05/13/1998 16:24:00 SCAN MOTOR On Orbit
05/13/1998 16:24:00 CHANNEL 20 On Orbit
05/13/1998 16:24:00 CHANNEL 19 On Orbit
05/13/1998 16:24:00 CHANNEL 18 On Orbit
05/13/1998 16:24:00 CHANNEL 17 On Orbit
05/13/1998 16:24:00 CHANNEL 16 On Orbit
05/13/1998 16:24:00 PSU On Orbit
05/13/1998 16:24:00 PEU On Orbit
05/13/1998 16:24:00 MDE On Orbit
05/13/1998 16:24:00 ICE On Orbit
05/13/1998 16:24:00 OSCILLATOR On Orbit