The small plume appears to be about the orientation and momentum of the original object.
Exactly what I thought. That small plume maintains the origional trajectory, or seems to.
Does the larger plume appear to originate from a more lateral or port origin than the smaller plume that you see in frame 10 or 11?
I can't tell just where the larger piece seems to origionate from. I have looked at that sequance any number of times and can't really tell. However, it seems to origionate from a slightly more inboard area.
What puzzles me is that after impact, the plume from the large piece of debris does not look to follow the origional trajectory but appears to take a slightly outboard (port) track.
I'm not saying it does, it could be nothing more than an illusion, or my eyes playing tricks on me.
Is it possible that a heaveier piece of debris could change direction slightly after impact at that speed, and if so, would it be noticable?