Project 10073 Record Card — Sioux City, Iowa, 9 June 1963

This document consists of a Project 10073 record card and an associated military teletype report regarding a UFO sighting in Sioux City, Iowa, on 9 June 1963. A civilian witness reported observing a circular, white object, described as the size of a large star, moving in a straight flight path from the southwest to the northeast at a uniform speed. The witness reported that the object appeared to stop northeast of the city. The observation lasted between 15 and 30 minutes. The report was processed by the Sioux City Air Defense Sector, with 2nd Lt. Andrew R. Davis serving as the reporting Combat Intelligence Officer. The military investigation concluded that the object was not an unidentified phenomenon but rather the satellite ECHO I. The report notes that at 0346Z, the satellite was positioned south of Sioux City at a 62-degree elevation, heading northeast. The investigators determined that the flight path, description, and duration of the sighting were consistent with the satellite's trajectory. Regarding the witness's claim that the object stopped, the report suggests this was an illusion. The document also includes a list of satellite sightings over various cities, including Omaha and Peoria, likely used for comparative analysis. The report confirms that no physical evidence was found and that there was no intercept activity related to the sighting, although one SAC aircraft was in the area at the time.