Test flight of the cryogenic Centaur stage. June 30, 1964 at 14:04 UTC · Launch Failure Atlas LV-3C Centaur — United States Air Force, to Low Earth Orbit Launch Complex 36A, Cape Canaveral SFS, FL, USA The world's 335th orbital launch attempt, and 42nd of 1964. Data: Launch Library 2, The Space Devs.