Report of Unidentified Object — Misawa Air Base, Honshu, Japan, 8 May 1952

This document is an Air Intelligence Information Report (IR-1-52) dated 15 May 1952, detailing an unidentified aerial object sighting that occurred on 8 May 1952 near Misawa Air Base, Japan. The sighting involved a pilot and a radar observer from the 339th Fighter Interceptor Squadron, who were flying an F-94 aircraft at 7,000 feet. According to the witnesses, they observed a streak of light that appeared at eye level. The pilot described the object as a ball-shaped light that changed color from green to yellow and finally to orange-red before disintegrating. The duration of the event was estimated at 3-5 seconds. The pilot reported the object traveling from West to East, while the radar observer reported it traveling from East to West. Both witnesses noted that the light appeared to follow an arc pattern and left a slight streamer trail. The pilot also mentioned observing flashing lights at ground level approximately two minutes prior to the main event. The report includes formal statements from the crew and a sketch of the object's trajectory. Despite the initial classification of the report as reliable (C-2) by the 116th F-B Wing Intelligence, the Deputy for Intelligence at Far East Air Forces (FEAF) downgraded the evaluation to C-6. The official conclusion provided by the FEAF Deputy for Intelligence suggests that the sighting was likely a lighted weather balloon launched by the Air Weather Service, noting that erratic behavior of such balloons combined with the physiological limitations of night vision could account for the witnesses' observations. A check with Japanese observatories confirmed no unusual meteorite activity during that period. The document is marked as unclassified and includes distribution information for various military intelligence units.