PROJECT 10073 RECORD CARD — Littleton, Colorado, 17 June 1960

This document consists of a Project 10073 record card, a letter from a witness in Littleton, Colorado, and a response from the United States Air Force. On June 17, 1960, at approximately 8:40 PM local time, a witness observed a brilliant white object in the sky. The witness, who identified themselves as an Engineering Physics major at the University of Colorado, reported that the object appeared at an elevation of 50-60 degrees and an azimuth of 250-260 degrees. The object moved rapidly downward to the left for a duration of 2 to 3 seconds, with its brightness decreasing rapidly. The witness noted that while they had experience observing objects through a telescope, this event was unique. They estimated the size of the object to be comparable to a 'hula-hoop,' though they acknowledged that size estimation is difficult without knowing the distance. The witness explicitly stated their opinion that the object was not a falling star. Following the report, Major Lawrence J. Tacker of the USAF Office of Information responded on June 23, 1960. Major Tacker informed the witness that their initial letter contained insufficient information to reach a valid conclusion. He requested that the witness complete an attached Air Force Questionnaire and forward it to the Aerospace Technical Intelligence Center at Wright-Patterson Air Force Base, Ohio. The record card itself categorizes the sighting as 'Probably a meteor.'