PROJECT 10073 RECORD CARD — Sighting Report, Detroit, Michigan, 5 June 1961

This document consists of a Project 10073 record card and associated incoming military messages regarding a UFO sighting reported on June 5, 1961, in Detroit, Michigan. The primary witness, A/3C Howard C. Heanery of the 1st Civil Engineer Squadron at Selfridge Air Force Base, reported observing a round, white object that appeared to be the size of a baseball. The object was described as moving extremely fast, occasionally appearing egg-shaped, and changing color from blue to amber. The witness noted that the object followed a straight path from west to east, made no sound, and possessed no tail, trail, or exhaust. The observation lasted between three and four minutes. Military authorities at Selfridge Air Force Base attempted to verify the sighting using radar, specifically the AN/FPS-20A search radar and the AN/FPS-6 height finder radar, but were unable to detect any object that was not already accounted for by the Detroit Air Defense Sector. Following an investigation, the official conclusion reached by the Air Force was that the sighting was likely caused by the orbiting fall of the ECHO satellite, noting that the satellite's path crossed the area during the time of the incident. The report also mentions a second, similar report from the same area, though the duration of that sighting was considered to be in error. The documentation includes detailed weather conditions at the time of the sighting, confirming clear skies and high visibility, which supported the conclusion that the object was an astronomical or satellite-related phenomenon.