Screenshots from Caroline Dries 9/11 footage that makes no sense

Whatever this aircraft is, its going right to left very fast. Not a helicopter. The plane impact would be impacting the left side of the tower from where she is recording, based on the fireball and smoke trail from the engine smoke trailing to the right. Then you can see an aircract going away from the towers for a split second at the top right of the screen, followed by a white orb thing thqt disappears into the sky a little bit later. Wtf is going on in this video??