A single flashing red light moving frenetically in a random geometric pattern.

It’s a cool night with great visibility. I went out on the deck around 9 pm, looked to the SSE which affords the greatest sky view, and observed with the naked eye what I thought was a cluster of flashing lights. I pulled out the binoculars and saw a single faint red light darting to and fro’ about 30 degrees off the horizon. The object appeared to be at a great distance and its movements were rapid across a large area. The light “flashed” at each new position, all of which was random, none of which was patterned or repeated. There was no light trail from site to site or sound. My wife also witnessed the phenomenon, telling me that the pattern “looked like an umbrella.” I did not see any such pattern.