The final image also includes UPS902's track as supplied by FlightAware.com and the FAA.
Why is the track of UPS902, as supplied by FlightAware.com, perpendicular to the path of the contrail?
The final image also includes UPS902's track as supplied by FlightAware.com and the FAA.
Why is the track of UPS902, as supplied by FlightAware.com, perpendicular to the path of the contrail?
For the same reason that this set of power lines appears to be nearly vertical: Foreshortening.
That's also the same reason an airliner contrail I saw today appeared to be a few degrees off vertical even though the plane was definitely parallel to the earth. It was close to sunset so I even got a flash of "fire" for part of the "ascent." No camera at hand, though.
As for the "different locations" in your other post, that's the result of different zoom settings. This is discussed on this page. And here are Warren's original photos in a zip file.