Report of Investigation: Unknown (Aerial Phenomena) - Incident 247

This report details an investigation conducted by the Office of Special Investigations (OSI) into sightings of 'green fireballs' in southern Colorado. The investigation was initiated following a letter from the 17th District Office at Kirtland Air Force Base dated 20 January 1949. The primary witness, whose name is redacted, reported observing a bright green, soundless fireball on three separate occasions: 12 September 1948, 5 December 1948, and 12 December 1948. During the first sighting near Moffat, Colorado, the witness was accompanied by a local high school teacher. During the second sighting on U.S. Highway 160 near Blanca, Colorado, the witness described the object moving horizontally and westerly at a very fast speed before disappearing in mid-air. The final sighting occurred near Monte Vista, Colorado, in the company of an employee from the St. Louis Valley Cooperative. The investigator, Harold B. Christensen, interviewed the witness on 31 January 1949. While the witness could not provide specific data regarding the object's size, shape, or altitude, the investigator noted that the witness appeared to be of above-average intelligence and that the reports were not merely a figment of his imagination. The document also references radio reports of similar 'fireballs' in the Oklahoma area and northern New Mexico. The final assessment on the document identifies the phenomenon as an 'Astro (Meteor)'.