PROJECT 10073 RECORD CARD — Sighting Report, Grand Bahama Island, 10 March 1959

This document details a Project 10073 record card and subsequent correspondence regarding an unidentified aerial phenomenon observed on March 10, 1959, near the Grand Bahama Auxiliary Air Force Base. An experienced civilian contract employee at the Air Force Missile Test Center reported that an FPS-6 surveillance radar detected an object maneuvering and following a subsonic missile test launched from Patrick Air Force Base. The object was observed for approximately 25 minutes, during which it performed two large circles and a figure-eight maneuver. The radar returns for both the missile and the unidentified object merged on the screen. Despite the clear weather and lack of radar interference, no aircraft were identified in the area that could account for the object's behavior. Following the initial report, military intelligence (AFCIN-4E1) requested further information from the field, specifically seeking details on the missile test parameters, the location of any chase aircraft, and the presence of U.S. Naval units in the vicinity. The official conclusion recorded on the card was that there was insufficient data for evaluation, noting that while the object was likely an aircraft, no specific confirmation could be made. The document includes a disposition form and a joint message form reflecting the administrative process of investigating the sighting.