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    Re: Ellipse of Confidence in position finding
    From: David Pike
    Date: 2019 Mar 18, 12:34 -0700

    Obviously if you are close enough for the GP to be on your plotting sheet you can draw a circle of position.

    I’m sure that many years ago I saw an example of this in a book.  It was a fix from just one body, the Sun, passing close overhead, and it was called a ‘zenith fix’.  However, today I can find no mention of it either on-line or in any of my books including Lecky, where I was sure I must have seen it.  Am I dreaming again?  DaveP 

       
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