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    Re: Lunar Averaging and theoretical line slope.
    From: Paul Hirose
    Date: 2015 Sep 24, 14:05 -0700

    On 2015-09-21 19:07, Mark Coady wrote:
    > I had read and tried an article some time ago using the technique for 
    averaging altitude sights whereby you determine what the slope of the 
    time/altitude line should be from calculated altitudes, then using the known 
    slope with parallells, projecting that into ones own series of graphed sights 
    to determine the best average.
    
    Mark may enjoy a discussion along those lines from August 2008:
    
    http://www.fer3.com/arc/sort2.aspx?y=200808
    
    It's the thread that begins at the bottom of the page, about "taking
    four stars".
    
    Note the sights in George Huxtable's challenge problem are symmetrical
    about the mid time. As I said back then, "Further analysis of Huxtable's
    simulated observations shows that solving for slope vs. using the known
    slope does make a difference -- if the observations are not
    symmetrically distributed around the center time."
    
    Dear old George. I miss him.
    
    

       
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