Program archive
Across five qualification and operational flights—two uncrewed Soviet tests, the crewed Soyuz 16 rehearsal, Soyuz 19, and Apollo—the Apollo-Soyuz Test Project developed and proved the first compatible international crewed docking system.
Explore this program
Choose a path through the Apollo-Soyuz archive.
5 mission-specific spacecraft and test articles, plus 8 launch systems and shared hardware records.
Androgynous international docking systemAPAS-75 was the jointly defined compatible docking mechanism that let either Apollo or Soyuz carry the active or passive role.
Cosmos 672 Soyuz-U supported Cosmos 672 in the Apollo-Soyuz program.
Soyuz 16 Soyuz-U supported Soyuz 16 in the Apollo-Soyuz program.
Soyuz 16 spacecraft was the mission-specific spacecraft for Soyuz 16.
Soyuz 19 Soyuz-U supported Soyuz 19 in the Apollo-Soyuz program.
Soyuz 19 spacecraft was the mission-specific spacecraft for Soyuz 19.
Saturn IB SA-210 supported Apollo-Soyuz Test Project in the Apollo-Soyuz program.
Transfer airlock and docking adapterDocking Module DM-2 was the purpose-built transfer airlock between Apollo and Soyuz.
Apollo CSM-111 was the mission-specific spacecraft for Apollo-Soyuz Test Project.
Cosmos 638 Soyuz-U supported Cosmos 638 in the Apollo-Soyuz program.
Cosmos 638 spacecraft was the mission-specific spacecraft for Cosmos 638.
Cosmos 672 spacecraft was the mission-specific spacecraft for Cosmos 672.