Bright object to northeast fell from about 3,500-3,600 feet to 2,000-2,600 feet height then ascended to 3,000-4,000 feet, headed east about 1/2 mile with jerky motion, stopped, reversed coursed to northeast again at a speed of about 100-150 mph, reversed again heading east, climbed at 25° angle increasing to 45° angle away in three to four seconds accelerating with jerky motion to disappearance. Second guard at different location Post six saw same but also heard "pulsating sound" and saw disc shape. Duration two minutes. At about 3:50 a.m. 319th Fighter-Interceptor Squadron F-94 interception of white-bluish round object on airborne radar for nine minutes at 500 mph at 6,000 feet height heading 90° initially, maneuvering down to 1,000 feet then up to 28,000 feet. disappearing on 45° heading.

Google map of this location.