Project 10073 Record Card and Incident Report — 18 November 1959

This document consists of a Project 10073 record card and an associated teletype report regarding an Unidentified Aerial Phenomena (UAP) sighting that occurred on November 18, 1959. The incident took place at 0850Z, approximately 100 nautical miles north of Andersen Air Force Base in Guam. The primary witness was a pilot, Captain Donald W. [illegible], assigned to the 41st Fighter Interceptor Squadron. The pilot reported observing a single circular or spherical object with a blue-green body that tapered at the trailing edge. The object's tail changed color to orange-yellow, and it left a contrail that persisted for 10 to 15 minutes after the object had passed. The pilot estimated the object's size to be equivalent to a half-dollar held at arm's length. The object appeared from the northwest and traveled in a straight line toward the southeast, passing in front of the pilot's aircraft, which was cruising at 20,000 feet. The object was estimated to be at an altitude above 35,000 feet and was visible for approximately three seconds before disappearing while the pilot checked his heading. No audible sound was reported, and no optical aids were used during the observation. The weather conditions at the time were reported as 1500 feet scattered clouds with 15 miles of visibility and a surface temperature of 80 degrees Fahrenheit. The report was filed in accordance with Air Force Regulation (AFR) 200-2. The official conclusion reached by the Air Technical Intelligence Center (ATIC) was that the description, flight path, and duration of the object were typical of a class of meteor known as a 'fireball'.