PROJECT 10073 RECORD CARD - 26 November 1957

This document is a Project 10073 record card detailing an Unidentified Aerial Phenomena (UAP) sighting that occurred on November 26, 1957, near the north end of Chocolate Mountain in Arizona. The sighting was reported by two military personnel, LT E.V. Laney of the US Navy and 1/LT L.E. Vosburgh of the USAF. The witnesses observed a single object for approximately 20 minutes. The object was described as circular to pear-shaped, silver in color, with a black spot on its side, and was estimated to be the size of a pea at a very high altitude. The object remained stationary throughout the observation, and no movement was noticed. The report notes that an aircraft flew directly under the object. Following the report, an investigation was conducted by the 864th ACWRON. By cross-referencing weather plotting charts and flight data, the investigators determined that the object was a high-altitude balloon associated with Vernalis flight S-372. The document includes a teletype message from the 864th ACWRON to various commands, including the Air Technical Intelligence Center at Wright-Patterson Air Force Base, confirming the identification of the object as a Sky Hook type balloon. The report concludes that the sighting was explained.