Tokyo Japan radar-visual unidentified-object report — March 15, 1955

On or during March 15, 1955, at or near Tokyo Japan, Japan, the source reports the following sequence: AT ONCE LOCATION OF INCIDENT: TOKYO, JAPAN DATE OF OBSERVATION: 2 FEBRUARY 1955 THE FORM OF CLOSURE OF THE OBJECT WAS NOT OBSERVED. THIS OBJECT WAS OBSERVED FOR A PERIOD OF 4 MINUTES. The targets which moved and then became stationary are believed to have resulted from a possible temperature inversion that would justify false echoes on ground targets. The fact that 15 targets originally appeared on the PPI scope, but only 2 were observed on the AI radar, tends to substantiate the spurious response theory. The object is described as a "Flying Saucer" in the text below the image. AIR INTELLIGENCE INFORMATION REPORT 15 March 1955 RADAR TRACKS OF UNIDENTIFIED TARGETS SEE VERIFICATION From the ground and air observations of these unidentified targets, this report provides information obtained from the interrogation of military personnel who visually observed and/or tracked the targets with radar. HAMILTON Colonel, USAF Director of Intelligence TEXT FROM THE DOCUMENT: AIR INTELLIGENCE INFORMATION REPORT PLACE: TOKYO, JAPAN DATE: 20 Mar 55 SUBJECT: UNIDENTIFIED AERIAL OBJECTS TRACKED BY GROUND RADAR SOURCE: USAF R-25B 1105-2 Ground Radar This report forwards information obtained from the interrogation of USAF personnel who visually observed and/or tracked unidentified aerial objects with ground radar at Tokyo, Japan on 20 Mar 55. The objects were observed on ground radar and by visual observation by personnel operating the radar set. The objects were observed for approximately 2 to 3 minutes and were tracked at an average speed of 500 mph at an altitude of 25,000 feet. ENTRY: AIRO 15-01-55 PAGE 2 OF 6 PAGES This investigation developed the incident, as it evolved in chronological order, from the initial sighting to tho subsequent observations and any information relative t o the object reported. The object was tracked on this radar for approximately 13 minutes until it passed out of range. The target was tracked until approximately l30l at which time it was at a position about 25 miles north of Tokyo proper, at an approximate altitude of 15,000 to 20,000 feet.