Yes, it's north of Merwin, how far, I don't recall at the moment.
What needs to be pointed out is the fact of the simulation can give a best estimate only. I can't reproduce every single thing they did in the flight. it's impossible. I went by the given time frames, altitudes, and speeds. I also put winds aloft into play. I was able to match the speeds, including ground speeds. I believe I still have some of the simulations saved. the sim has a black box that can tell me things needed., in the replay I can also stop at any given point for any reason...
The way I analyzed this the time wasn't used but location was based on placard. Time = events not location.
Getting the most northern possible location for 20:09.. can bring the two together. There may be an intersecting point. I suspect north of Merwin..
Time is measured in hours, minutes, and seconds - not in events in the world!
Time hasn't been measured by worldly events since the calendar clocks of the Hittites, Maya, or the quatrains of Nostradamus etc.
Clocks are independent devices that are coordinated by some mechanical or electronic means across distance, using some arbitrary standard like the orbit of the Moon, Sun, stars, standard freq of an atom, etc.
Clocks are independent of worldly events. That is their value.
Some of the clocks that were active in the Cooper case were:
ATC network clocks
NWO communications network clocks
USAF clocks
Intercept planes and their clocks
Clocks aboard flight 305
Radar network clocks (system calibration timing)
Airport clocks
Flight data recorder clock
etc
The opening pages to the NWA FBI Search mentions "time correlation from the above USAF radar information and from the NWA communications network tape recording ....."
Other clocks, timing cross checks and calibration may have been considered and used, and probably were unavoidable as a concomitant part of the analysis process.