Project 10073 Record Card — Salt Lake City, Utah, 13 December 1954

This document consists of a series of records, including a Project 10073 record card and a military teletype message, detailing an unidentified aerial phenomenon sighting that occurred on December 13, 1954, near Salt Lake City, Utah. The incident involved two witnesses, 1st Lt. Ennis F. P. Miller and A/1C C. E. Lighthall, who reported observing a green light visually for six seconds. Simultaneously, two objects were tracked on G.E.S. radar for three seconds. The objects were reported to be traveling at speeds estimated between 1,000 and 15,000 miles per hour. The teletype message, dated December 17, 1954, provides further technical details, noting the objects were at an altitude of 9,500 feet and were observed in a climbing turn, with one object appearing to follow the other. The objects were described as having a appearance similar to the afterburner of a jet. Despite the radar and visual data, the official conclusion recorded on the project cards is that the event was a 'probable meteor sighting.' The documentation also notes that the report was considered incomplete due to insufficient data for a full evaluation.