Vostok was the last mission of the Vostok program. It was piloted by Valentina Tereshkova. The mission was launched two days after Vostok 5. The mission began on 16 June 1963, 09:29:52 UTC and ended on 19 June 1963, 08:20 UTC. June 16, 1963 at 09:29 UTC · Launch Successful Vostok-K — Soviet Space Program, to Low Earth Orbit 1/5, Baikonur Cosmodrome, Republic of Kazakhstan Crew: Valentina Tereshkova The world's 256th orbital launch attempt, and 32nd of 1963. Program: Vostok Data: Launch Library 2, The Space Devs. Image via The Space Devs.