Project 10073 Record Card and Correspondence — Mount Kisco, New York, October 1960

This document contains a U.S. Air Force sighting report and associated correspondence regarding an unidentified aerial phenomenon observed on October 5, 1960, in Mount Kisco, New York. The witness, an electronics engineering secretary, reported observing a round, bright white light, comparable in magnitude to the planet Venus, moving across the sky from the southeast to the northwest. The object was visible for approximately 20 seconds, traveled in complete silence, and vanished into the haze at an elevation of 30 degrees. The witness, who was measuring oil levels in an outside tank at the time, noted the object's steady speed and lack of trail. Following the sighting, the witness wrote to the U.S. Air Force's 'Project Flying Saucer' in Washington, D.C. The Air Force responded on October 31, 1960, via Lt. Colonel Lawrence J. Tacker, requesting that the witness complete a formal questionnaire for the Aerospace Technical Intelligence Center (ATIC) at Wright-Patterson Air Force Base. The witness complied, providing detailed sketches and descriptions of the event. The official Air Force evaluation concluded that the report contained insufficient data for a definitive identification. While the witness speculated that the object might have been a rocket or missile, the Air Force noted that the reported angular velocity and direction were inconsistent with satellite data. The case was ultimately filed as 'unidentified,' with investigators suggesting a probable error in the witness's estimation of the sighting's duration. The document includes the original record card, the witness's correspondence, the Air Force's request for further information, and the completed technical information sheets.