Report of Investigation: UFO Sighting, Rantoul and Champaign/Urbana, Illinois, 25 February 1967

This document is a formal investigative report from the Department of the Air Force, Headquarters 3345th Air Base Group at Chanute Air Force Base, regarding a series of UFO sightings in the Rantoul and Champaign/Urbana, Illinois area on February 25, 1967. The investigation was led by Captain Edward J. Orenic. Numerous civilian witnesses, including students and employees at the University of Illinois, reported observing a round, reddish-orange or yellow-white object moving slowly from the west to the east and eventually toward the northeast. Witnesses described the object as having no definite structure, emitting no sound, and occasionally pulsating or appearing to drop ashes or sparks. The sightings occurred between approximately 1915 and 2135 hours. Captain Orenic contacted various agencies, including the University Police, Chanute AFB Tower, Chicago ARTC, and local National Guard units, none of which reported any unusual activity or aircraft in the area. Weather conditions were noted as clear and cloudless. While the official conclusion in the summary form suggests the object was a 'probable hot air balloon with a flare attached,' Captain Orenic's personal report states that he was unable to definitively determine the nature of the object, though he noted that the witnesses appeared reliable. He recommended that no further investigation was warranted unless new evidence emerged. The file includes multiple witness statements, a weather map, and correspondence from the University of Illinois.