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    LAN and ex-meridian fix from 3 random sights near "noon"
    From: Jaap vd Heide
    Date: 2012 Jan 20, 12:58 -0800

    Based on "Bowditch" and triggered to tinker about things by Greg Rudzinski's "Ex-Meridian Turkey Shoot Challenge" and remarks on precision by John Karl in the chapter on "special sights" in his marvellous book, this is what I think is minimally needed:

    3 or more sights near - but not necessarily spread before and after - transit, a bit evenly spaced apart (timewise), with the first and last sight being - say - between half an hour and an hour apart, accurately taken and timed;
    A good watch set to UT1, or at least the ability to determine UT1 with it;
    (this is enough to determine LAN [in UT1])
    Date and NA info to determine a fix.

    I don't think one actually needs a sight at transit.

    What do you think?

    Jaap
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