Project 10073 Record Card — Hamilton AFB, California, 13 December 1956

This document consists of a Project 10073 Record Card and an associated teletype message regarding an Unidentified Aerial Phenomena (UAP) sighting that occurred on December 13, 1956. The incident took place at Hamilton Air Force Base in California at 0453Z. The witness, Captain Alvin Haas, an aircrew member of the 25th Air Division, observed a single spherical object with an intense blue-white light. The object was described as traveling in a straight-line flight path, tracking approximately 270 degrees, and passing directly overhead. The duration of the observation was recorded as six seconds. The teletype message, sent from the Commander of Hamilton AFB to the Commander of the Air Defense Command, the Air Technical Intelligence Center (ATIC), and the Director of Intelligence at HQ USAF, confirms that there was no corroborating evidence from local flight facilities and that the report was prepared by the Officer of the Day. The official conclusion reached by the evaluating agency, ATIC, is that the object was 'probably a meteor.' The record card explicitly notes that there were no photographs taken and no radar contact made during the event.