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    Re: Position from solar eclipse photo
    From: Frank Reed
    Date: 2013 Nov 19, 13:51 -0800

    Greg Rudzinksi, you wrote:
    "Attached is my plot."

    That's a very impressive plot, Greg. From the appearance of the calculation, it looks like you did it entirely from the astronomical and celestial navigation data. But what do you think? Is your fix astronomical? Also, what's the sensitivity? For example, you got the time by treating the eclipse as a lunar distance observation. Even I, "Lord of the Lunars" (I have just crowned myself), did not use that. How accurate is the UT derived from that. I tried a couple of different ways to estimate the time and could not fix it better than a minute or so by purely astronomical means. But now that we have the exact location (based on overlap between foreground and background objects), we can probably give a rather exact UT for the photo. And I see that you've estimated "Hs" values. I can place lower limits on Hs, of course, but I'm not really sure where the true (or apparent) horizon would be in this photo. How did you estimate that?

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