Project 10073 Record Cards and Related Correspondence — November 1958

This collection of documents details multiple UFO sighting reports processed under Project 10073 in November 1958. The first incident, occurring in Northern Honshu, Japan, involved a pencil-shaped object described as orange with a green/yellow tail, which disintegrated while moving in a northerly direction. Intelligence assessments concluded that this sighting coincided with a rocket launch by the Tokyo University IGY rocket team. Subsequent documents concern a series of reports from the Minot, North Dakota area. These reports describe a bright green object, the size of a dime or pinhead, which appeared to explode, followed by a second silver object that moved toward the explosion at an extreme rate of speed before disappearing. Military personnel at Minot AFS conducted initial checks but reported that no information or indication of balloon launches or other activity could be found to explain the sightings. Despite requests from ATIC for clarification on whether an explosion actually occurred and if a balloon was involved, the 786th ACWRON at Minot eventually concluded that no formal follow-up investigation was considered necessary, as no cause could be determined within their capability. The documents include various record cards, joint message forms, and teletype communications between military units, including the 786th ACWRON, ATIC, and the 100th AISS, reflecting the administrative process for handling UAP reports during this period.