This is one of the more interesting fireball type videos I've seen. Assuming the video is being shown in real time, unless there are hellacious winds alot, it looks too fast to be a lantern. It's also too steady, no flickering.
It could be a drone, but the light looks to be pyrotechnic, as opposed to electric/LED. Assuming the timing of video as shown is accurate, 45 seconds is longer than drone pyrotechnics/fireworks I've seen last. Some new light kit, maybe?
It also looks a bit like a military jet engaging it afterburner(s), but again the length of the burn seems longer than usual (unless it's a true emergency.) Also if an a/c was close enough see the afterburner(s) that brightly, they would have heard them.
It could be sunlight reflecting off an aircraft, I've seen reflections that bright off a/c at twilight from the setting sun. Not sure that's a good answer here, however, as the ball doesn't seem to be high enough.
If I had to guess, I'd say a drone with either some LED fancy light kit, or slow burning pyros.