Tuscon, ArizonaFebruary 1960

On the evening of February 24, 1960, a couple driving east of Tucson, Arizona, spotted an unusual white object in the sky near sunset. The wife noticed it first, and her husband initially thought it was a jet contrail (a trail of condensation left by a high-altitude aircraft). But when he pulled over to look more closely, he saw something stranger. The object appeared as a nonradiating band of white light, similar in color to a contrail but behaving differently. At one point, he caught a glimpse of what seemed to be a globe shape behind the band.

The object moved slowly and erratically across the sky, changing direction quickly and angling back and forth. Around 6:25 p.m., two diagonal streaks of light broke away from the upper and lower edges of the band. These streaks circled nearby, looped back, and appeared to rejoin the original object. After about eight minutes of observation, the object began drifting southward, gradually fading from view rather than shrinking in size. The entire sighting lasted until about 6:28 p.m.

The following morning, the witnesses called Davis-Monthan Air Base and the local newspaper but learned that no one else had reported anything unusual. They noted that other aircraft had been in the sky at the time, all heading away from the object. The witnesses were confident they had seen a material object rather than a light reflection, pointing to the globular shape they observed and the two streaks that detached and returned.

The Air Force's initial determination, made after reviewing the detailed questionnaire the witnesses later completed, identified the object as Discoverer VIII, a recently launched U.S. satellite. The case file notes that the sighting occurred while observers were looking into the setting sun, with scattered clouds to the south and possible atmospheric inversion present, conditions that could produce reflections. The evaluation form checked "Probably Balloon" as the conclusion, though the detailed memo identified it as the Discoverer satellite. The full case file, comprising 19 pages as held by the National Archives, is reproduced below.