Lunar impactor which successfully reached the surface after transmitting 7,137 photographs. July 28, 1964 at 16:50 UTC · Launch Successful Atlas LV-3 Agena B — United States Air Force, to Lunar Impactor Launch Complex 12, Cape Canaveral SFS, FL, USA The world's 343rd orbital launch attempt, and 50th of 1964. Data: Launch Library 2, The Space Devs. Image by NASA (NASA Image and Media Guidelines) via The Space Devs.