Project 10073 Record Card — Sighting NNE of Boston, Massachusetts, 27 August 1957

This document consists of a Project 10073 record card and associated military teletype reports regarding an Unidentified Aerial Phenomenon (UAP) sighting that occurred on 27 August 1957. The incident took place north-northeast of Boston, Massachusetts, at approximately 1915Z. A duty pilot, identified as a reliable source, reported observing a single, round, metallic grey object at a high altitude. The object was described as appearing stationary for the duration of the 20-minute observation. The report notes that the observer was unable to climb to the object's altitude. Ground Control Intercept (GCI) from the 656th Aircraft Control and Warning (ACW) squadron was involved in the tracking of the object. The military documentation, including communications between the 324th Fighter Interceptor Squadron at Westover AFB and various intelligence commands, indicates that despite the lack of extensive data, the object was officially classified as a balloon. The report includes technical details such as the estimated altitude, which was noted as '80 angels or above,' and confirms that no photographs or film were taken of the object. The final conclusion recorded on the project card explicitly states that the object was presumed to be a balloon, reflecting the standard evaluation process for such sightings under Project 10073 at the time.