NOAA Office of Satellite and Product Operations

NOAA 18 AVHRR Subsystem Summary

Subsystem History:

Component Description Status
BASEPLATE AVHRR baseplate Green
CHANNEL 1 Spectral channel #1, 0.58-0.68 micro meters. Green
CHANNEL 2 Spectral channel #2, 0.725-1.0 micro meters. Green
CHANNEL 3A Spectral channel #3A, 1.58-1.64 micro meters. Green
CHANNEL 3B Spectral channel #3B, 3.55-3.93 micro meters. Green
CHANNEL 4 Spectral channel #4, 10.3-11.3 micro meters. Green
CHANNEL 5 Spectral channel #5, 11.5-12.5 micro meters. Green
ELECTRONICS AVHRR Electronics Green
OPTICS AVHRR Optical mirrors and telescopes Green
PSU Power Supply Unit Green
RADIANT COOLER AVHRR Radiant Cooler Green
SCAN MOTOR AVHRR Scan Motor Green

Subsystem History:

Date Time Component Description
08/11/2005 14:41:00 CHANNEL 4 Select AVHRR channel 4 for APT channel B. All other MIRP settings will remain the same.
08/11/2005 14:40:00 CHANNEL 2 Select AVHRR channel 2 for APT channel A
08/05/2005 14:02:00   Disable automatic Channel 3A/3B switch on non-control CPU
08/05/2005 14:01:00   Disable automatic Channel 3A/3B switching on control CPU
08/05/2005 14:00:00   Select AVHRR channel 3B
06/23/2005 17:51:00   Enable 3A/3B switching on non-control CPU
06/23/2005 17:50:00   Enable 3A/3B switching on control OBP
06/05/2005 14:32:00 CHANNEL 5 IR channel 5 turnon (imagery nominal). AVHRR OV operations complete. Subsystem fully operational.
06/05/2005 14:31:00 CHANNEL 4 IR channel 4 turnon (imagery nominal)
06/05/2005 14:30:00 CHANNEL 3B IR channel 3B turnon (imagery nominal)
06/04/2005 19:11:00 RADIANT COOLER AVHRR cooler turnoff
05/20/2005 15:14:00 CHANNEL 1 First AVHRR image produced (channel 1 HRPT data) nominal quality.
05/20/2005 15:10:20 CHANNEL 3A Turned on
05/20/2005 15:10:10 CHANNEL 2 Turned on
05/20/2005 15:10:00 CHANNEL 1 Turned on
05/20/2005 15:09:50 SCAN MOTOR Powered on
05/20/2005 15:09:40 RADIANT COOLER Turned on
05/20/2005 15:09:30 PSU Turned on
05/20/2005 15:09:10 OPTICS Turned on
05/20/2005 15:09:00   AVHRR turned on (Channels 1, 2 and 3A only). HRPT Imagery recieved nominally.
05/20/2005 15:09:00 ELECTRONICS Powered on
05/20/2005 11:50:00 BASEPLATE on orbit