Project 10073 Record Card — Kansas City, Missouri, 21 December 1957

This document consists of a Project 10073 record card and associated teletype communications regarding an Unidentified Aerial Phenomenon (UAP) sighting that occurred on December 21, 1957, in Kansas City, Missouri. The primary witness, identified as a civilian, reported observing a single, round object, described as being the size of a dime. The object reportedly changed colors from red to green to blue before eventually fading from sight. The duration of the observation was approximately ten minutes. The teletype correspondence, dated December 22, 1957, originated from the 20th Air Division and was directed to the Air Technical Intelligence Center (ATIC) and the Air Defense Command. The teletype confirms the details of the sighting and notes that the witness also reported two aircraft in the vicinity. The official conclusion reached by the evaluating agency was that the report contained insufficient information for a proper evaluation, leading to its classification as 'insufficient data.' The document includes various administrative markings and technical data, such as atmospheric conditions, which were recorded as 'clear.' No physical evidence, radar contact, or photographic documentation was associated with the event.