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    Re: Systematic error and its resolution
    From: Peter Fogg
    Date: 2007 Apr 07, 07:07 -0000

    Frank (also) wrote:
    >  I think it's probably true (and probably obvious)
    > that  you would get even better results with more sights
    Yes. A graphic method of plotting tends to become horribly complicated
    with five or more position lines, but a least squares fix, analysis
    for systematic error, etc can all be carried out.
    I tend to think of four position lines as being the ideal number, but
    the analysis of any number of LOPs is a cinch for modern supercharged
    methods (eg, use of computing devices). In practice my nav calculator
    does this very well, encouraging the use of multiple bodies - it has
    no trouble at all in deriving a fix based on them all, and rendering
    the error of each (distance of each body's LOP from fix) as a post fix
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