As an aside, I point out that this video is shot at 25 frames per second, and the object takes 9 frames to go from a stationary start to appearing at the left of the building. By the 10th frame, it has completely disappeared from the video. So it took it about four-tenths of a second to go from a stationary start somewhat to the right of the building to disappearing from view at the left of the building. That's a fairly brisk pace, particularly considering that it was stationary to start with. And, of course, we don't know how far behind the building the object was, and how big it was, so the pace might be even more impressive than we might think.
Or it might just be very clever video manipulation...
After 1 sec...16'
After 2 secs..62'
After 3secs..138'
Could you bother to please isolate and highlight maybe with a circle the bit of the craft still poking out from behind the building in the last frame it did so in . . . and then the peak on the left side of the building where last seeable?
Blessings,
...and where are the Coneheads these days, anyway?
Cheers!