Accession Number : AD0164454

Title :   Vehicle Attitude Sensor.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Terasaki,Richard M.

Report Date : 31 JUL 1973

Pagination or Media Count : 8

Abstract : The patent relates to an apparatus to control the alignment of the spin axis of a communications satellite with the major axis of an eccentric, near polar orbit. The on-board prediction of the time of apogee passage and autonomous control at apogee for the spin axis alignment with the local vertical is also provided. Thus, cumulative errors in the apogee epoch predictions due to orbital period errors are avoided.

Descriptors :   *Satellite attitude, *Patents, Communication satellites, Attitude control systems, Detectors, Stabilization systems

Subject Categories : Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE