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    Re: 3 sights SR example
    From: John D. Howard
    Date: 2017 Jun 23, 14:54 -0700

     Andres,

    I used a calculator ( law of cosine ) and then drew the LOPs on a UPS then picked the center of the hat.

    Hc 57.64271     Zn 103.4

    Hc 31.92531     Zn 8.4

    Hc 29.73310     Zn 48.2

    Fix at 10d 53m South,   178d 54m East

    John H.

       
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