Soyuz 40

USSR


International Flight nº: 81

Earth orbit Flight nº: 78

USSR launch Flight nº: 49

Interkosmos-9 flight

Launch & orbit data:

Designation 12454 / 81042A
Launch date - time 14 May 1981 - 17:16:38 UT
Launch site Baikonur, LC1
Launch vehicle  Soyuz 11A511U
OKB name - S/N° Soyuz 7K-T s/n 56
Basic shape  Sphere-cylinder + 2 wings
Dimension (m) 7.5 long, 2.3 to 2.72 dia
Mass (kg) 6800? kg
Flight Crew (EP-12) Popov, Leonid I. (CDR)
Prunariu, Dumitru D. (CR)
Call Sign Dnepr (Dnieper River)
Backup crew Romanenko Y., Dediu D.
Earth orbit on May 14.9:
   - Perigee / Apogee 191 x 269 km
   - Eccentricity 0.006
   - Inclination 51,62°
   - Period 89.05 min
Patch Soyuz 40

Docking & landing data:

Docking date - time 15 May 1981 - 18:50 UT
Target spacecraft/port Salyut 6/aft
Undocking date - time 22 May 1981 - 10:40 UT
Landing date - time 22 May 1981 - 13:58:30 UT
Landing location 46° N, 70° E
Flight Duration (d:hr:min) 07d 20h 41m 52s (7.86 days)
Nbr orbits 124

Flight Crew

Nr. Surname Given name Job Duration
1  Popov  Leonid Ivanovich  Commander 7d 20h 42m 
2  Prunariu  Dumitru Dorin  Research cosm. - Romania 7d 20h 42m 

Backup Crew: Dediu & Romanenko.


Mission details:


Astrophilately covers:

Soyuz 40

Launch cancel Baikonur, signed by crew.

Soyuz 40

Cosmic Mail: Cover on board of Salyut 6, with Russian board cancel:180581, small Salyut boardcancel and Soyuz T-4 cancel, signed by Kovalyonok and Savinykh. With confirmation: “on board Salyut 6 - Soyuz T-4“.



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