Project 10073 Record Card — Bunker Hill AFB, Indiana, August 1957

This document is a Project 10073 record card detailing an unidentified aerial phenomenon sighting that occurred on August 7, 1957, at Bunker Hill Air Force Base in Indiana. The report describes a single, round object that was red and yellow in color. The witness estimated the size of the object to be equivalent to a basketball held at arm's length. The observation lasted for a duration of ten seconds, during which the object traveled on a northwest course. The record indicates that the observation was made via ground-visual means, and explicitly notes that no photographs were taken and no radar contact was established. The official conclusion reached by the evaluating authority is that the sighting was caused by a meteor, citing the description, duration, and flight path as the primary evidence for this determination. The document also notes that there is no further report on file regarding this specific incident.