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Luc,

All that was done was to Google Earth Grand Canyon and use the mid point as the assumed position then run through August 2013 dates with the given UT until an intercept came close to the AP. Another LOP is needed for a fix. Sam crossed his Moon line with a Sun line from earlier in the day. I did not see the Sun data anywhere in the doc.

G

From: Luc Van den Borre
Date: 2015 Feb 10, 21:01 +0100

 

On 10/02/15 19:21, Greg Rudzinski wrote:
> Luc,
>
> Here is what I get for a first try based on the data as seen in doc. A
> date and assumed position has to be guessed. Time is assumed to be UT.

I'm impressed, good show!
Did you take the moon phase into account?  I used
http://tycho.usno.navy.mil/vphase.html
and your date appears to be a full moon, while in the video it seems to
be waxing gibbous, a couple of days before a full moon (assuming those
images are of the night of the observation of course).

Luc