Kosmos 672 ( meaning Cosmos 672) was the second uncrewed test of the ASTP Soyuz spacecraft. Also had APAS-75 androgynous docking system. This was preceded by another uncrewed test of this spacecraft type, Kosmos 638. It was a Soyuz 7K-TM spacecraft. Mission parameters Spacecraft: Soyuz 7K-TM Mass: 6510 to 6680 kg Crew: None Launched: August 12, 1974 Landed: August 18, 1974 References Mir Hardware Heritage Mir Hardware Heritage - NASA report (PDF format) Mir Hardware Heritage (wikisource) Kosmos 0672 1974 in the Soviet Union Spacecraft launched in 1974 Soyuz uncrewed test flights Apollo–Soyuz Test Project