Context
In 1962 the Air Force was building Titan II launch complexes around Tucson. The 390th Strategic Missile Wing at Davis-Monthan Air Force Base had been activated on 1 January. One of its sites, complex 570-1, stood some 27 miles north of Tucson, near the town of Oracle. It was not yet operational. According to researcher Robert Hastings, the first Titan was not installed in its silo until December 8, 1962. On the night in question, the silo was empty.