(Project Blue Book, U.S. Air Force, Washington, D.C.)
Source: Fold3.com, Lindon, Utah.
This UFO incident (listed as “unknown”) was witnessed by both U.S. Navy pilots (two) and civilians. The document contains a newspaper article (“S.D. SKIES GLOW – Pilots Spot Mystery Light,” 14 March 1961, Evening Tribune, San Diego, California) (Page 15):
Satellite photo of Chula Vista, California(tageo.com)