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. August 23, 1962 at 11:33 UTC · Launch Successful Scout X-2M — United States Air Force, to Sun-Synchronous Orbit Space Launch Complex 5, Vandenberg SFB, CA, USA The world's 189th orbital launch attempt, and 47th of 1962. Data: Launch Library 2, The Space Devs.