Soyuz 15 was meant to be the second crewed mission to the Salyut 3 space station. The mission launched on August 26, 1974, 19:58:05 UTC, carrying commander Gennadi Sarafanov and flight engineer Lev Dyomin to orbit. Soyuz-15 failed to dock with the station and had to return to Earth early, landing on August 28, 1974, 20:10:16 UTC.