Soyuz 31

USSR


International Flight nº: 69

Earth orbit Flight nº: 66

USSR launch Flight nº: 38

Interkosmos-3 flight

Launch & orbit data:

Designation 11010 / 78081A
Launch date - time 26 Aug 1978 - 14:51:30 UT
Launch site Baikonur, LC1
Launch vehicle  Soyuz 11A511U
OKB name - S/N° Soyuz 7K-T s/n 47
Basic shape  Sphere-cylinder + 2 wings
Dimension (m) 7.5 long, 2.3 dia
Mass (kg) 6570? kg
Launch Crew (EP-4) Bykovsky, Valeri F. (CDR)
Jähn, Sigmund (CR)
Call Sign Yastreb (Hawk)
Backup crew Gorbatko V., Köllner
Earth orbit on Aug 26.8:
   - Perigee / Apogee 193 x 243 km
   - Eccentricity 0.004
   - Inclination 51.62°
   - Period 88.80 min
Patch Soyuz 31

Docking & landing data:

Docking date - time 27 Aug 1978 - 16:37:37 UT
Target spacecraft/port Salyut 6/ aft
Earth orbit on Aug 28.4:
   - Perigee / Apogee 339 x 354 km
   - Eccentricity 0.001
   - Inclination 51.63°
   - Period 91.40 min
Undocking date - time 07 Sep 1978
Redocking date - time 07 Sep 1978
Target spacecraft/port Salyut 6/ fore
Undocking date - time 02 Nov 1978 - 07:46 UT
Deorbit burn date - time 02 Nov 1978 - 10:15:17 UT
Landing date - time 02 Nov 1978 - 11:04:17 UT
Landing location 46°N, 69°E
Flight Duration (d:hr:min) 67d 20h 12m 47s (67.84 days)
Landing crew Kovalyonok, Ivanchenkov
 (crew S-29)
Nbr orbits 

Flight Crew

Nr. Surname Given name Job Duration Orbits
1  Bykovsky  Valeri Fyodorovich  Commander 7d 20h 49m  124 
2  Jähn  Sigmund Werner Paul  Research cosm. - DDR 7d 20h 49m  124 

Bykovsky and Jähn returned with Soyuz 29.

Flight:

Launch from Baikonur; landing with Soyuz 29 spacecraft (3 Sep 1978) 180 km southeast of Dzheskasgan; third Intercosmos-mission; first German in space; docking on Salyut 6; scientific research and experiments including photography of Earth surface;

Salyut 6 Detail.

Mission detail:


Astrophilately covers:

Soyuz 31

Launch cancel Baikonur, signed by crew.

Soyuz 31

Cosmic Mail: Cover on board of Salyut 6, with special German boardcancel: 27.-8.78, signed by Soyuz 31 and 29 crew.


Soyuz 30

Cosmic Mail: Cover on board of Salyut 6, with special Polish boardcancel: -3-07-78, and bordcancel Soyuz 31: 27-8.78 signed by Soyuz 30 &: 31 crew. Credit: #409

Soyuz 30

Cosmic Mail: Cover on board of Salyut 6, with special Polish boardcancel: -5-7-78, and bordcancel Soyuz 31: 27-8.78 signed by Soyuz 30 &: 31 crew. Credit: #409



Ref.: #1, #2, #4, #7, #8, #16, #125, #206, #210, #409 - update: 26.08.18 Home