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    Re: Correcting for the movement of an observer: a plausible explanation?
    From: Michael Cain
    Date: 2019 Dec 23, 10:28 -0800

    Season's greetings to you, Tony,

    The perspective I'd offer is the philosophical.  A navigator is an opportunist, in the best sense of that word.  He gathers every scrap of useful data he can and assimilates it into his plot.  While not a multi-body fix, a solid LOP is a great piece of information.  Add that to your DR course line, and you're much better off than without the LOP.  Add it to another LOP which a quck break in the weather might permit hours later, and you're better off still.  And Greg's right: simply advance the LOP down your DR track and voila - no need for further science.  Is a running fix as good as a simultaneous multi-body fix?  Probably not, but it's still a perfectly valid (and more, eminently useful) practice.  

    Cheers,

    Mike

       
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