Project 10073 Record Card — Las Cruces, New Mexico, 25 Jan 54

This document is a Project 10073 record card and accompanying U.S. Air Force Technical Information Sheet detailing an unidentified aerial phenomenon observed on January 25, 1954, at 2200 MST. The witness, a technician with the Technical Service Unit of the Ordnance Corps at White Sands Proving Ground, was preparing a camera station for a missile shoot when he observed a pulsating, yellow-white light moving from the northeast to the southeast. The observation lasted approximately 5 to 6 seconds. The witness, who possessed five years of experience in astronomy and had worked at Lowell and Yerkes Observatories, provided a detailed technical account, including a period-luminosity curve on a logarithmic stellar magnitude scale. He estimated the object's speed at 12,000 m.p.h. and noted that it was a point source of light with no detectable physical dimensions. The sighting was confirmed by an operator at the Oboe Askania station, located 17 miles southeast of the witness's position. The witness explicitly rejected the possibility that the object was a meteor, citing his extensive experience observing thousands of meteors. The report was processed through Dr. Clyde W. Tombaugh at the Flight Determination Laboratory. The witness expressed a willingness to discuss the sighting further with an authorized representative.