November 5, 1961 at 20:00 UTC · Launch was a Partial Failure Thor DM-21 Agena-B — United States Air Force Space Launch Complex 2E, Vandenberg SFB, CA, USA The world's 133rd orbital launch attempt, and 40th of 1961. Data: Launch Library 2, The Space Devs. Image by USAF via The Space Devs.