Aviation observation — 60 mi. east of Rock Springs, Wyoming — 1953-12-29

On 1953-12-29, an aviation observation was reported at or near 60 mi. east of Rock Springs, Wyoming, United States. The catalogue lists the aircraft and observers as a C-47 pilot. Its time field reads night. Two red lights were assigned an estimated speed exceeding 1,800 miles per hour. Source: Dominique F. Weinstein, Unidentified Aerial Phenomena: Eighty Years of Pilot Sightings (NARCAP TR-04, February 2001), PDF page 26, table row 19.