[mvpel]

Oddly enough their source for that, FlightAware.com now shows that flight, on Nov. 8th, traveling most of its flight at 37k ft and ascending to 39k ft for the last portion of its flight.

Actually, FlightAware shows the flight beginning its descent into Ontario shortly before 5:30pm Pacific Time, just as the video was being shot. It went from 39,000 feet to 29,000 feet over the course of six minutes from 5:27pm to 5:33pm.

Just look at the track log, it's right there starting at 8:27pm Eastern time.

[TigersEye]

That’s not true. The track log, at the bottom of the page, shows it ascended from 37k ft to 39k ft at about 5:10 PM PST and held until about 6:00 PM when it descended into Ontario. It does not give times in EST anywhere on the page. Are you sure you are looking at Nov. 8th and not today’s flight?