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    Spacecraft navigation by sextant
    From: Paul Hirose
    Date: 2017 Aug 5, 20:42 -0700

    I found these NASA publications by accident while looking for something
    else.
    
    Theory and results from Skylab experiments with the Kollsman space sextant:
    https://archive.org/stream/NASA_NTRS_Archive_19750013231#page/n0/mode/2up
    https://archive.org/stream/NASA_NTRS_Archive_19760011097#page/n0/mode/2up
    
    Irradiation effect on the apparent limb of a body:
    https://archive.org/stream/NASA_NTRS_Archive_19680025308#page/n0/mode/2up
    

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