The DSAP-1 (Defense Satellite Application Program Block 1) satellites series, also known as P-35, was the first series of military meteorologal satellites of the USA. September 27, 1963 at 11:17 UTC · Launch Failure Scout X-2B — United States Air Force, to Sun-Synchronous Orbit Space Launch Complex 5, Vandenberg SFB, CA, USA The world's 272nd orbital launch attempt, and 48th of 1963. Data: Launch Library 2, The Space Devs.