White Sands, New Mexico: Twinkle camera crew films four objects during missile test
On April 27, 1950, while preparing an MX-776A Shrike missile test at White Sands Proving Ground, Project Twinkle cinetheodolite operator Charles Riggs tracked and filmed four high-flying objects; a second station also tracked them.
Background
While preparing for an MX-776A Shrike air-to-ground missile test at White Sands Proving Ground, New Mexico, Charles Riggs, a member of the Project Twinkle cinetheodolite camera crew supplied by Land-Air Inc., saw, tracked and filmed four high-flying objects streaking across the sky. Another station also tracked the objects. The photos show only a smudgy dark object. Triangulation by mathematician Wilbur L. Mitchell and Capt. Perry Bryant yielded a size of 30 feet in diameter and an altitude of 150,000 feet. The account follows the entry in George M. Eberhart's chronology UFOs and Intelligence (CUFOS) and the sources cited there; it is not an independent determination by From Beyond Space.