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    Re: An analytical solution of the two star sight problem of celestial navigation
    From: Bill Lionheart
    Date: 2019 Mar 5, 11:50 +0000

    And the idea is quite simple. The circles of position from each sight
    is the intersection of a plane with the sphere. The planes intersect
    in a line, and it is easy to find the intersection points of a line
    with a sphere. I dont know who was teh first to do this.  For bonus
    points what is the probability contour in this case! (I don't know off
    hand)
    
    Bill
    
    On Mon, 4 Mar 2019 at 15:03, Andrés Ruiz  wrote:
    >
    > As a curiosity the paper by James Van Allen: "An analytical solution of the 
    two star sight problem of celestial navigation" February 1981 at
    > https://apps.dtic.mil/dtic/tr/fulltext/u2/a098626.pdf
    >
    > Published: IoN Vol. 28, No. 1, Spring 1981
    >
    > regards.
    > --
    > Andrés Ruiz
    > Navigational Algorithms
    > http://sites.google.com/site/navigationalalgorithms/
    >
    > View and reply to this message
    

       
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