Vicinity Yokohama Japan unidentified aerial event — August 1960

On or during August 1960, at or near Vicinity Yokohama Japan, Japan, the source reports the following sequence: ECHO TIMEDATA Echo Timedata will be returned each week as soon as possible. Trip In Shadows Seen Behind No Effect On Echo WASHINGTON, MAY 22 - (AP) - The navy reported today that electronic equipment detected a "trip in shadows" as an unidentified object passed behind the Echo 1 satellite. Object appeared to be rectangular in shape and descended to be 250 degrees true.