The actual mission time was 5 days 22 hours. However, most of that time was spent in orbit, preparing for rendezvous and docking. Total time docked was 1 day 23 hours.
It was an aptly named program, as they used both Apollo and Soyuz vehicles. Apollo on the American side, and Soyuz on the Soviet side.
Apollo is the name of the American spacecraft and Soyuz is the name of the Russian spacecraft.
The last lunar landing occurred in December, 1972. The Apollo-Soyuz Test Project, a non moon mission, where an American Apollo capsule docked with a Russion Soyuz Capsule, took place in 1975.
There were two:Apollo Applications Program - responsible for launching SkyLab and the Apollo-Soyuz Test ProjectSpace Transportation System (STS) - The Space Shuttle program.
Directly following the end of the Apollo program was the Apollo Soyuz Test Program (ASTP) which, using Apollo flight hardware, performed the first international rendezvous and docking when the ASTP crew docked with a Russian Soyuz capsule. The next true program, one that required all new hardware, was the Shuttle Transport System, (STS). Also known as the Space Shuttle.
It was called the Apollo and Soyuz program, in this program both the spacecrafts docked with each other, and the crew changed over.
Apollo Soyuz in July 1975, involved the docking of an unnumbered Apollo Command/Service Module (a surplus one from the terminated Apollo moon program and the last to fly) with the Soviet Soyuz 19.
Apollo-Soyuz, made and activated after the phase-out of the Apollo program mated an Apollo command module (US) with a Soviet Soyuz spacecraft in orbit- both craft being manned, and this was sometimes called the summit in the sky. occured in l974 or 75. Do not confuse with Skylab, which used Apollo command modules as access craft.
Deke Slayton
The Apollo-Soyuz mission flew in July, 1975.
The mission following the end of the Apollo program was the Apollo Soyuz Test Project, or ASTP. This program was the first joint US / Russia space mission. It entailed Apollo hardware rendezvousing and docking with Soyuz hardware while in orbit. This mission, however, also used most of the same hardware designed for the moon landings. The next new-hardware mission post Apollo was the Space Transport System or STS, better known as the Space Shuttle.
Apollo-Soyuz A+