Soyuz 31

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Soyuz 31
Mission insignia
Mission statistics
Mission name	Soyuz 31
Spacecraft mass	6,800 kg (15,000 lb)
Crew size	2
Call sign	Ястреб (Yastreb - "Hawk")
Launch pad	Gagarin's Start[1]
Launch date	August 26 1978 14:51:30 (1978-08-26T14:51:30) UTC
Landing	November 2 1978 11:04:17 (1978-11-02T11:04:18) UTC 140 km (87 mi) SE of Dzhezkazgan
Mission duration	67d/20:12:47
Number of orbits	124
Apogee	259.9 km (161.5 mi)
Perigee	196.8 km (122.3 mi)
Orbital period	88.81 minutes
Orbital inclination	51.64°
Related missions
Previous mission Next mission Soyuz 30 Soyuz 32

Soyuz 31 (Russian: Союз 31, Union 31) was an Intercosmos mission to Salyut 6. Sigmund Jähn became the first German spacefarer.

Contents 1 Crew 1.1 Backup crew 2 Mission parameters 3 Mission highlights 4 References

[edit] Crew

Number in parentheses indicates number of spaceflights by each individual prior to and including this mission.

Launched:

• Valery Bykovsky (3) - Commander
• Sigmund Jähn (1) - Research Cosmonaut -  East Germany

Landed:

• Vladimir Kovalyonok (2) - Commander
• Aleksandr Ivanchenkov (1) - Flight Engineer

[edit] Backup crew

• Viktor Gorbatko - Commander
• Eberhard Köllner - Research Cosmonaut -  East Germany

[edit] Mission parameters

• Mass: 6,800 kg (15,000 lb)
• Perigee: 196.8 km (122.3 mi)
• Apogee: 259.9 km (161.5 mi)
• Inclination: 51.64°
• Period: 88.81 minutes

[edit] Mission highlights

Soyuz 31 docked with Salyut 6. The crew returned to earth aboard the Soyuz 29 spacecraft after 7 days, 20 hrs., 49 min. Jähn was first German Democratic Republic cosmonaut to orbit; veteran cosmonaut Bykovski had flown solo in Vostok 5. After Jähn and Bykovski departed the station in the Soyuz 29 spacecraft on September 3, the long-duration Salyut crew transferred the Soyuz 31 spacecraft to the front port of the station. Moving a replacement Soyuz to the front port became standard procedure; it freed the aft port for Progress supply ships.

[edit] References

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