Backup crew

Mission parameters

• Mass: 6800 kg (14,991.4 lb)
• Perigee: 197.8 km (122.9 mi)
• Apogee: 293.1 km (182.1 mi)
• Inclination: 51.61°
• Period: 89.12 minutes

Mission highlights

Pham Tuan of Vietnam

Vietnam

Vietnam – sometimes spelled Viet Nam , officially the Socialist Republic of Vietnam – is the easternmost country on the Indochina Peninsula in Southeast Asia. It is bordered by China to the north, Laos to the northwest, Cambodia to the southwest, and the South China Sea –...

 arrived with Commander Viktor Gorbatko aboard Salyut 6 in Soyuz 37; they both returned to Earth in the Soyuz 36

Soyuz 36

-Backup crew:-Mission parameters:*Mass: *Perigee: *Apogee: *Inclination: 51.62°*Period: 89.0 minutes-Mission highlights:...

 spacecraft approximately eight days later. Tuan’s 30 experiments involved observing Vietnam from space, life sciences (including tests of growth of Vietnamese azolla water ferns, with application to future closed-loop life support system

Life support system

In human spaceflight, a life support system is a group of devices that allow a human being to survive in space.US government space agency NASA,and private spaceflight companies...

s), and materials processing

Materials processing

Articles on Materials processing include:* process a set of transformations of input elements into products* industrial process, a procedure involving chemical or mechanical steps to aid in the manufacture of an item or items...

. The long-duration crew launched in Soyuz 35

Soyuz 35

-Backup crew:-Mission parameters:*Mass: *Perigee: *Apogee: *Inclination: 51.65°*Period: 88.81 minutes-Crew launch, station activation:...

returned to earth in the Soyuz 37 spacecraft at the end of their 186 day mission.