Having seen several bolide fireballs, I'd hazard to guess this is one. They're really not that uncommon, just pretty hard to photograph on camera as you don't know where, when, or if there is one coming. The person who posted it appeared to be doing star trails with a wide lens (50mm f/1.4) photographing a large portion of the sky and accidentally caught one. The fact that it only appeared for one 10" frame and then gone the next one, leaving just a contrail that later dissipates, pretty much rules out plane or satellite, having photographed both during star trails.