S69-39958 (16 July 1969) --- A 70mm Airborne Lightweight Optical Tracking System (ALOTS) camera, mounted in a pod on a cargo door of a U.S. Air Force EC-135N aircraft, photographed this event in the early moments of the Apollo 11 launch. The mated Apollo spacecraft and Saturn V second (S-II) and third (S-IVB) stages pull away from the expended first (S-1C) stage. Separation occurred at an altitude of about 38 miles, some 55 miles downrange from Cape Kennedy. The aircraft's pod is 20 feet long and 5 feet in diameter. The crew of the Apollo 11 lunar landing mission are astronauts Neil A. Armstrong, Michael Collins, and Edwin E. Aldrin Jr.