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    Re: Lunar by LOP - not difficult, but precision suffers
    From: Bill Noyce
    Date: 2003 Jun 12, 15:34 -0400

    Regarding "Lunar by LOP", Doug Royer says:
    > I hope to try this new (to me)proceedure over the next few days
    > and try to form my own opinion as to the diffaculty or ease of completeing
    > it.
    I think you'll find the procedure is relatively straightforward
    and familiar.  But try it using a range of values for the moon's
    altitude, based on various estimates you might make for dip
    (perhaps using the temperature/pressure tables), and see how much
    your longitude moves as a result.  Also consider how many
    different table entries you add together, that are all tabulated
    to 0.1 minutes -- each contributes a rounding error of up to
    0.05 minutes, and they might all be in the same direction.
    Try reducing your sight a few times with that error added back
    in, once all positive and again all negative.

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