Previous method of computing profiles of luminance of earth's sunlit limb, indexed in Engineering Index 1966 p 2815-16, is improved and results are extended through visible spectrum; principal source of limb-profile error, earth albedo variation, is reviewed; profiles are calculated for ozone-containing atmosphere at wavelengths of ultraviolet and Chappius-band absorption; methods of sensing sunlit horizon and signal vs horizon altitude curves are given for suggested two-color, null-seeking sensor with accuracy of approximately plus or minus 1/2 km.


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    Title :

    Precision limb profiles for navigation and research


    Additional title:

    J Spacecraft Rockets


    Contributors:
    Wolff, M. (author)

    Published in:

    Publication date :

    1967


    Size :

    6 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :