Earth sensor for satellites

Details Earth sensor for satellites Earth sensor for satellites

1994-04-13

1995-10-03

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250342, 244171, G01J 506

Patent

active

054554241

ABSTRACT:
The attitude of a satellite is determined by using an array of IR detectors receiving an image of space and the Earth. The detectors are spaced so that at least in a central zone, the sun will not enter the optical field of more than one detector. The signals from each detector are monitored and if a signal is very high, indicating that the sun's image is falling on the detector, that signal is ignored.

REFERENCES:
patent: 3304425 (1967-02-01), Astheimer
patent: 4048500 (1977-09-01), Moore
patent: 5055689 (1991-10-01), Proffit et al.

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