I am sceptical about this identification. I would not call myself an expert, but I got some experience with identification contrails in satellite images in the past five years, doing it for Contrail Science and Metabunk.
One important thing to remember is that contrails do not coincide with the flight paths. They are carried away by wind, a typical speed of which at the contrail altitudes wind is about 100 mph. Due to the wind, the direction of contrail deviates from the plane course by a small angle (~5°) whereas the location of an aged contrail (~1h) may well be tens of miles away from the actual flight path.
The high altitude wind would probably have a pronounced effect on a U-turn contrail shape. By the time the turn is completed ... Read even more
