Project 10073 Record Card — Sighting Report 20 November 1957

This document consists of a series of reports and internal correspondence regarding an unidentified aerial phenomenon sighting on November 20, 1957. The incident involved multiple reports from civilian and Ground Observer Corps (GOC) observers in Indiana and Illinois, specifically near Montezuma, Terre Haute, Robinson, and Newport. Witnesses described seeing between one and eight round, white or bright orange objects, roughly the size of a baseball, darting in and out of clouds at an altitude of approximately 7,000 feet. The objects were reported to be moving in various directions, including eastward, westward, and upward. The reports were funneled through the Terre Haute Filter Center to the Indianapolis Air Route Traffic Control (ARTC) and eventually to the 782nd Aircraft Control and Warning Squadron (ACWRON). A National Guard commander authorized a fighter aircraft to be sent aloft to investigate, but no radar contact was established in the area. The documentation includes multiple versions of the report, often marked with handwritten notes such as 'inconsistent info' and 'garbled,' reflecting the confusion surrounding the conflicting accounts of the number of objects and their flight paths. The official conclusion recorded on the Project 10073 record card is that there was 'insufficient data for evaluation' and that no attempt at analysis was made due to the lack of reliable information. The file also contains standard military teletype formats for reporting such incidents under Air Force Regulation 200-2, dated August 12, 1954.