Project 10073 Record — Englewood, Colorado, 21 February 1967

On February 21, 1967, at 0600Z, a civilian witness in Englewood, Colorado, reported observing an unidentified object in the western sky. The witness, a 42-year-old nurse, described the object as round and peach-colored, noting that it later shifted to a reddish hue. The object was observed for over five minutes, appearing to be basically stationary before moving southwest and then west toward the mountains. The witness stated that the object did not disappear during the observation. The report was processed by the Lowry Technical Air Training Center (ATC) of the United States Air Force. Major Edward E. Vigee, Chief of the Operations Services Division, reviewed the report. The official conclusion reached by the Air Force was that the sighting was an astronomical observation. Specifically, the star Aldebaran was calculated to be at an azimuth of 272 degrees and an elevation of 24 degrees, which the investigators determined could account for the reported phenomenon. The report notes that there was heavy air traffic in the Denver area at the time, and the investigator included a brief note regarding the 'possibility aircraft.' No physical evidence, photographs, or radar data were associated with the incident.