Determination of gamma-telescope axis orientation aboard a satellite

Details Determination of gamma-telescope axis orientation aboard a satellite Determination of gamma-telescope axis orientation aboard a satellite

Mar 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977kosis..15..324g&link_type=abstract

Kosmicheskie Issledovaniia, vol. 15, Mar.-Apr. 1977, p. 324-326. In Russian.

Physics

Gamma Rays, Instrument Orientation, Satellite-Borne Instruments, Spaceborne Telescopes, X Ray Telescopes, Angular Distribution, Cosmos Satellites, Solar Radiation

Scientific paper

For experiments not requiring extreme precision of orientation, gamma-telescope orientation can be based on infrared and visible spectrum measurements of the earth's mechanically modulated albedo radiation. The orientation apparatus has two apertures opened and closed alternatively to receive light from two opposite directions. A harmonic signal is generated with an amplitude proportional to the current differences caused by the differences in radiation received from two directions. The harmonic signal indicates the orientation with respect to the earth. This apparatus was used in the study of hard gamma rays on board Cosmos-461.

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