NOAA Office of Satellite and Product Operations

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NOAA 18 AVHRR Subsystem Summary

Component Description Status
BASEPLATEAVHRR baseplateGreen
CHANNEL 1Spectral channel #1, 0.58-0.68 micro meters. Green
CHANNEL 2Spectral channel #2, 0.725-1.0 micro meters. Green
CHANNEL 3ASpectral channel #3A, 1.58-1.64 micro meters. Green
CHANNEL 3BSpectral channel #3B, 3.55-3.93 micro meters. Green
CHANNEL 4Spectral channel #4, 10.3-11.3 micro meters. Green
CHANNEL 5Spectral channel #5, 11.5-12.5 micro meters. Green
ELECTRONICSAVHRR ElectronicsGreen
OPTICSAVHRR Optical mirrors and telescopesGreen
PSUPower Supply UnitGreen
RADIANT COOLERAVHRR Radiant CoolerGreen
SCAN MOTORAVHRR Scan MotorGreen


Subsystem History:

Date Time Component Description
08/11/200514:41:00CHANNEL 4Select AVHRR channel 4 for APT channel B. All other MIRP settings will remain the same.
08/11/200514:40:00CHANNEL 2Select AVHRR channel 2 for APT channel A
08/05/200514:02:00 Disable automatic Channel 3A/3B switch on non-control CPU
08/05/200514:01:00 Disable automatic Channel 3A/3B switching on control CPU
08/05/200514:00:00 Select AVHRR channel 3B
06/23/200517:51:00 Enable 3A/3B switching on non-control CPU
06/23/200517:50:00 Enable 3A/3B switching on control OBP
06/05/200514:32:00CHANNEL 5IR channel 5 turnon (imagery nominal). AVHRR OV operations complete. Subsystem fully operational.
06/05/200514:31:00CHANNEL 4IR channel 4 turnon (imagery nominal)
06/05/200514:30:00CHANNEL 3BIR channel 3B turnon (imagery nominal)
06/04/200519:11:00RADIANT COOLERAVHRR cooler turnoff
05/20/200515:14:00CHANNEL 1First AVHRR image produced (channel 1 HRPT data) nominal quality.
05/20/200515:10:20CHANNEL 3ATurned on
05/20/200515:10:10CHANNEL 2Turned on
05/20/200515:10:00CHANNEL 1Turned on
05/20/200515:09:50SCAN MOTORPowered on
05/20/200515:09:40RADIANT COOLERTurned on
05/20/200515:09:30PSUTurned on
05/20/200515:09:10OPTICSTurned on
05/20/200515:09:00 AVHRR turned on (Channels 1, 2 and 3A only). HRPT Imagery recieved nominally.
05/20/200515:09:00ELECTRONICSPowered on
05/20/200511:50:00BASEPLATEon orbit