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    Re: Position from altitude and azimuth.
    From: Bill Lionheart
    Date: 2020 May 18, 10:59 +0100
    Andrés

    I must be missing something. I don't see any other point on the red circle that would have the same azimuth as the great circle from the red pin to the blue pin It seems to me if you extend the isoazimuth it crosses each meridian until it gets to 180 degrees from the long of the GP (blue pin). After that shortest great circle  path goes the other way. I suppose if you are doing HF radio direction finding short and long path are relevant. Is that what you mean?

    Bill

    On Sun, 17 May 2020 at 23:02, Andrés Ruiz <NoReply_AndresRuiz@fer3.com> wrote:
    Hello Bill,

    see the  isoazimuthal and circle of equal altitude

    Imagine the second intersection.

    CoP intersect isoZ.png

    --
    Andrés Ruiz
    Navigational Algorithms
    http://sites.google.com/site/navigationalalgorithms/

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