Cosmonauts:
    Pyotr I. Klimuk [1], Commander
    Valentin V. Lebedev [1], Flight Engineer
Backup:
    Lev Vorobyov
    Valeri Yazdovsky
Launch:
    Date: 18 December 1973
    Time: 11:55 UTC
Landing:
    Date: 26 December 1973
    Time: 08:51 UTC
Duration: 7 days, 20 hours, 56 minutes
Call Sign: Kavkaz (Caucasus)

Soyuz 13 was short mission to do some of the experiments planned for the Salyut 2 station which failed in orbit.

This also marked the first time that both the US and the USSR simultaneously had men in space (Skylab 3).