Project 10073 Record Card and Related Correspondence — Thule AB, Greenland, October 1960

This document consists of a Project 10073 record card and subsequent military communications regarding an unidentified aerial phenomenon observed over Thule Air Base, Greenland, on October 6, 1960. The sighting, which lasted approximately five minutes, involved a single orange object observed by three personnel associated with the BMEWS project. Witnesses reported that the object moved erratically, alternating between straight-line travel, slowing down, speeding up, and making 90-degree turns. The object was described as being roughly the size of half a dime at the observed distance. No sound was reported, and no photographs were taken. Military authorities investigated the incident, noting that a weather balloon had been launched from the base at 1100Z. Major Samuel M. Brunson, Assistant Director of Operations, suggested that the object could have been this balloon, particularly if sunlight reflected off it in a specific manner, though he explicitly stated that the evidence was not conclusive and that there was insufficient data for a definitive finding. The correspondence includes directives from HQ USAF to the 4683rd Air Defense Wing at Thule, instructing them to report such sightings as 'UFO' in accordance with Air Force Regulation 200-2 and to submit an electrical report without delay.