Accession Number : ADD003133

Title :   Means and Method for Determining Meridian Location and Azimuth.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Wirtanen,Theodore E

Report Date : 21 Sep 1976

Pagination or Media Count : 5

Abstract : The patent relates to a device whereby stellar events are timed through a lens system and reticle by a photomultiplier tube. Times are compared and a difference factor computed, the difference factor is implemented to move the lens system, reticle, and photomultiplier until times are equal, verifying the location of a line on the reticle to be on the meridian.

Descriptors :   *Position finding, *Star trackers, *Patents, Optical equipment, Photomultiplier tubes, Reticles, Optical lenses

Subject Categories : Space Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE