NOAA 11 AVHRR Subsystem Summary

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 3	Spectral Channel #3, 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	Yellow
PSU	Power Supply Unit	Green
RADIANT COOLER	AVHRR Radiant Cooler	Green
SCAN MOTOR	AVHRR Scan Motor	Red

Subsystem History:

Date	Time	Component	Description

09/13/1994		SCAN MOTOR	Motor current increased and black body channels no longer operating within normal limits

05/09/1991		SCAN MOTOR	AVHRR experienced three re-syncs, increase in motor current and noise in channel 3.

08/01/1989		OPTICS	Between latitudes 70 and 80 degrees, sun glint caused channel 3 black body temperature errors.

09/24/1988	10:36:00	PSU	On Orbit

09/24/1988	10:36:00	SCAN MOTOR	On Orbit

09/24/1988	10:36:00	ELECTRONICS	On Orbit

09/24/1988	10:36:00	RADIANT COOLER	On Orbit

09/24/1988	10:36:00	OPTICS	On Orbit

09/24/1988	10:36:00	BASEPLATE	On Orbit

09/24/1988	10:36:00	CHANNEL 1	On Orbit

09/24/1988	10:36:00	CHANNEL 2	On Orbit

09/24/1988	10:36:00	CHANNEL 3	On Orbit

09/24/1988	10:36:00	CHANNEL 4	On Orbit

09/24/1988	10:36:00	CHANNEL 5	On Orbit

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