Project 10073 Record Card — Pacoima, California, 30 July 1957

This document consists of a Project 10073 Record Card and an associated military teletype message regarding a UFO sighting reported on July 30, 1957, in Pacoima, California. The witness, 1st Lt. John W. Sharp of the 669th ACWRON, observed a single, round, white object, described as being the size of a dime, moving slowly from the southwest to the west. The object emitted a blinking white light and made no sound. The observation lasted for approximately 25 minutes, during which the object eventually blinked out. The report notes the object's initial position at 45 degrees elevation and 270 degrees azimuth. Following the investigation, the official conclusion recorded on the card was that the object was the star Arcturus, noting that Arcturus was in the reported position. The teletype message, dated July 31, 1957, confirms the details of the sighting and includes a note suggesting the possibility of a light civilian aircraft with a faulty tail light, though the final conclusion on the record card identifies it as an astronomical event. The document also includes a page from a Science News Letter dated June 22, 1957, which provides a celestial time table and star charts, likely used for reference in evaluating the sighting. A separate, unrelated personal account from a Douglas Soebbing in Kirkwood, Missouri, dated July 23, 1957, is also included in the file, describing a similar sighting of a bright star-like object that changed colors and moved before disappearing behind trees.