Project 10073 Record Card — Islip, Long Island, New York, 5 Sep 60

This document details a Project 10073 record card and associated teletype correspondence regarding an Unidentified Aerial Phenomenon (UAP) sighting on September 5, 1960, in Islip, Long Island, New York. A civilian observer reported a large, circular, flashing green object with four or five searchlights emanating from its rear. The object was described as being at an extremely high altitude, initially stationary, before moving toward the southwest and fading out over a duration of 30 to 45 minutes. The report was investigated by Captain William S. Barnett of the New York Air Defense Sector. During the time of the sighting, the sector reported experiencing radar jamming at various sites. Two F-101B interceptor aircraft (Lima Papa 13 and 19) were scrambled to investigate the area but failed to locate the object. The pilots reported seeing the Aurora Borealis. Additionally, a weather balloon had been launched from Idlewild Airport at 2300Z, though interceptor crews did not observe it. The official conclusion reached by the investigating officer was that the sighting was likely caused by the Aurora Borealis or the weather balloon, noting that the coincidence of the radar jamming and the atmospheric conditions led to the report.