Project 10073 Record Card — 10 December 1957 Sighting, Los Angeles, California

This document is a Project 10073 record card detailing a sighting that occurred on December 10, 1957, east of Los Angeles, California. The witness, a 35-year-old assistant manager, reported observing a round object, approximately five inches in diameter, emitting a bright blue light. The object was seen at 0830Z while the witness was stopped at a red light. According to the report, the object appeared at the top of the witness's windshield, dropped at an angle from south to north, and disappeared behind mountains. The duration of the sighting was estimated at one or two seconds. The report notes that the witness initially believed the object was a meteor. The weather conditions at the time were clear with unlimited ceiling and some haze and smoke. The report was received by the Officer of the Day at Long Beach Air Force Base on December 12, 1957, as the witness had delayed reporting due to not having immediate access to a telephone. The official conclusion reached by the Air Technical Intelligence Center (ATIC) was that the object was likely an astronomical meteor.