Misawa Air Force Base Japan radar-visual unidentified-object report — July 1961

On or during July 1961, at or near Misawa Air Force Base Japan, Japan, the source reports the following sequence: BRIEF SUMMARY OF SIGHTING: White oval, object observed traveling east to west at high speed. Observed through scope on radar, suddenly disappeared from scope. COMMENTS: It suddenly disappeared from radar scope after about 2 minutes of observation. A well-trained radar operator observed this object and was convinced that it was a definite solid object under intelligent control.