Saljut 2 was launched 3rd of april 1973 , but never got visits from Sojus missions.
The second Orbitalstation from Russia got fire and was destroyed in the orbit after some days in space.
On 28 of april the main parts of the destroyed orbitalstation entered the atmosphere of Earth and disappeared.
Saljut 3 was the third russian Orbitalsation and has been launched 24 of june 1974.
This orbitalstation have been constructed only for military purpose. Sojus 14 was the only Sojus spaceship which docked at Saljut 3. The next Sojus mission Sojus 15 failed during docking procedure and has to go back to Earth with not completion of the docking mission (two times the crew tried to dock, automaticly and manuelly).
The Sojus 15 crew Sarafanow and Djomin never have been chossen once again for further missions.
24 of january 1975 Saljut 3 have been destroyed during entering the atmosphere of Earth by burning.
Sojus 14 launch 03.07.1974 Pawel Popowitsch (USSR)
docking to Saljut 3 04.07.1974 Juri Artjutchin (USSR)
undocking 19.07.1974
landing 19.07.1994
Back to Earth crew:
same
255 Orbits
Sojus 15 launch 26.08.1974 Gennadi Sarafanow (USSR)
docking to Saljut 3 no docking Lew Djomin (USSR)
undocking 28.08.1974
landing
Back to Earth crew:
same
32 Orbits