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    Re: Wobbly Prime Meridian
    From: Alan S
    Date: 2010 Nov 22, 09:43 -0800

    SJOZAC---net

    Think I addressed reply to the wrong party.

    In any case, via simply looking at the numbers, the differrence (error) is about 1/10 NM. Doing a ratio and proportion, I get 528'.

    Of course, 1' of arc is 1 NM at the equator, at 51.5 Degrees North (roughly), I believe it would be less, though off hand I don't know how much less. Does this help.

    Alan
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