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The Flight of the Apollo Soyuz Test Project

July 15-24, 1975

Apollo Crew : Thomas P. Stafford, Vance D. Brand, Donald K. Slayton

Soyuz Crew: Valeriy Nikolayevich Kubasov, Alexei Arhipovich Leonov

09 days, 07 hours, 28 minutes

The Soyuz was launched just over seven hours prior to the launch of the Apollo CSM. Apollo then maneuvered to rendezvous and docking 52 hours after the Soyuz launch. The Apollo and Soyuz crews conducted a variety of experiments
over a two-day period. After separation, Apollo remained in space an additional 06 days. Soyuz returned to Earth approximately 43 hours after separation.