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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.
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5 mission-specific spacecraft and test articles, plus 4 launch systems and shared hardware records.
S74-25394 (10 July 1974) --- A group of American and Soviet engineers of the Apollo-Soyuz Test Project working group three examines an ASTP docking set-up following a docking mechanism fitness test conducted in Building 13 at the Johnson Space Center.
APAS-75 was the jointly defined compatible docking mechanism that let either Apollo or Soyuz carry the active or passive role.
Soyuz 16 spacecraft was the mission-specific spacecraft for Soyuz 16.
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.
Apollo CSM-111 was the mission-specific spacecraft for Apollo-Soyuz Test Project.
S75-21836 (20 Feb.
Docking Module DM-2 was the purpose-built transfer airlock between Apollo and Soyuz.
Already-reviewed real photograph from the one canonically related soyuz-19 mission. It supplies mission context for ASTP Soyuz spacecraft; it is not necessarily the exact hardware subject and does not establish the record's exact hardware article, serial, configuration, markings, deployment, operation, condition, or visibility.
The ASTP Soyuz was the Soyuz spacecraft configuration modified for 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.