Vostok 6

Vostok 6 was the final crewed flight of the Soviet Vostok program and Valentina Tereshkova's only spaceflight. Tereshkova launched from Baikonur Site 1/5 on June 16, 1963, two days after Valery Bykovsky's Vostok 5, creating the second simultaneous two-spacecraft human orbital operation. Flying under the call sign Chaika, she became the first woman in space and remains the only woman to have flown a solo space mission. The spacecraft came within a few kilometers of Vostok 5 during the paired flight, and Tereshkova supported communications, photography, flight logging, and biomedical observations during the mission. Spacefacts lists 48 orbits and a duration of 2 days, 22 hours, and 50 minutes, with landing on June 19 northeast of Karaganda / west of Barnaul after the usual Vostok ejection-and-parachute descent. The mission closed the Vostok human-spaceflight series and became one of the defining public milestones of early Soviet spaceflight.