This video is all over yt. Excuses from Planet-X through to Devils falling to Earth and fireballs. lol.
I'm fairly certain it's a plane. An airbus 380 Emirates flight EK448 over Hobart at 6.30 a.m. 2/28/2017 from Dubai to Auckland NZ.
Or possibly a satellite on re entry. Not confirmed, but the re entry time was close to this time.
But what is the object up there with it?
Another picture taken by a photographer shows the plane more clearly.
No matter what it is, it still has an anomaly over the top of the contrail.
Also MrGreyface did some of his own analyzing and found an object off to the right of the screen coming into view and moving across from right to left of screen then a sudden drop to the bottom of screen.