UFO Sighting in St. Louis, Missouri on 2011-10-10 05:15:00 – Boomerang shaped ufo near stl airport

At the time i was working as a fueler. myself and 2 others had gone outside to watch the space station do a flyby. one of the other 2 turned around and said "what's that" and pointed. we turned to see a giant boomerang shaped object hovering over the city. we watched it for about 10 minutes before it shot off like a bat out of hell. never seen anything like it. the other 2 told me they would deny it if i told this.