Project 10073 Record Card and Incident Report — Van Dyke, Michigan, November 21, 1955

This document consists of a Project 10073 record card and an accompanying military teletype report regarding an unidentified aerial phenomenon observed on November 21, 1955, in Van Dyke, Michigan. The report was filed by the 661st ACWRON at Selfridge AFB, Michigan, in accordance with Air Force Regulation 200-2. The witness, a 29-year-old civilian, reported observing a brilliant white flash that lasted for approximately three seconds. The witness described the object as being the size of a grapefruit. The sighting occurred at night under clear weather conditions. The report provides specific angular data, noting the object was first sighted at a 23-degree angle at an elevation of 212-degree azimuth, and disappeared at a 20-degree angle at an elevation of 210-degree azimuth. The witness, who had over 100 hours of experience as a Ground Observer Corps (GOC) observer, reported no sound associated with the flash. The military investigation, conducted by the Air Technical Intelligence Center (ATIC), concluded that there was insufficient data to evaluate the sighting or determine the nature of the object. The report explicitly states that the cause could not be determined from the information received.