◆ CASE FILEThe facts, corroborated
The Light over Tokyo Bay That an F-94 Chased on Radar
Late on 5 August 1952 control-tower operators at Haneda Air Force Base watched a brilliant blue-white light over Tokyo Bay for most of an hour, while ground radar tracked a target orbiting in the same area and an F-94 crew caught it briefly on their own set. Project Blue Book left it unidentified. The Condon Report later judged the light most likely the star Capella and the radar returns anomalous propagation. This is the record of what the tower, the controllers and the crew reported, not a verdict on what hung over the bay.
◆ THE SHORT VERSION
- The Light over Tokyo Bay That an F-94 Chased on Radar is a reported UAP case in Haneda Air Force Base and Tokyo Bay, Tokyo, Japan, 5–6 August 1952, about 23:30–00:30 local.
- Haneda control-tower operators watched a brilliant blue-white light over Tokyo Bay through binoculars for 50 minutes to an hour on the night of 5 August 1952.
- Shiroi ground radar tracked a target orbiting in the area that broke into three contacts, and an F-94 crew got a weak radar contact at 6,000 yards for about 90 seconds but saw nothing.
- Far East Air Forces called it the first Far East sighting combining visual and radar contact over an extended period, and Project Blue Book filed it as Unknown no. 1827.
- The Condon Report (1968) concluded the light was most likely the star Capella seen through an unusual optical effect and the radar returns probably anomalous propagation.
- For this case Fractured Realities holds 3 distinct sources, 3 corroborating primary documents and 7 distinct claimants on its resolved list.
- The archive grades it L4 · OFFICIAL RECORD — a released government record names who saw it, the top of our scale, though no independent testimony sits beside that record.
Counts are resolved totals of what sources say, computed 2026-10-12; the reported details above are claims in the record, not findings. A record of reports, not a verdict on what happened.
EVENT DATE
5–6 August 1952, about 23:30–00:30 local
LOCATION
Haneda Air Force Base and Tokyo Bay, Tokyo · Japan
COORDS
35.55°N 139.78°E
INDEPENDENCE
L4 · OFFICIAL RECORD
SOURCES
3 distinct
CLAIMANTS
7
STATUS
Known from released government records
NUMBERS COMPUTED 2026-10-12 · RESOLVED COUNTS, NOT A VERDICT
