Soyuz T-4

USSR


International Flight n: 78

Earth orbit Flight n: 75

USSR launch Flight n: 47


Launch, orbit & landing data:

Designation 12334 / 81023A
Launch date - time 12 Mar 1981 - 19:00:11 UT
Launch site Baikonur, LC1
Launch vehicle  Soyuz 11A511U
OKB name - S/N Soyuz 7K-ST s/n 10L
Mass (kg) 6850
Flight Crew (EO-5) Kovalyonok, Vladimir (CDR)
Savinykh, Viktor (FE)
Call Sign Foton (Photon )
Backup crew Titov V., Strekalov
Earth orbit on :
   - Perigee / Apogee 245 / 315 km
   - Inclination 51.61°
   - Period 88.9 min

Docking & landing data:

Docking date - time 13 Mar 1981 - 20:33 UT
Target spacecraft/port Salyut 6/fore
Undocking date - time 26 Mar 1981 - 09:20 UT
Landing date - time 26 May 1981 - 12:37:34 UT
Landing location 46N, 69E
125 km east of Dzheskasgan
Flight Duration (d:hr:min) 74:17:38
Nbr orbits 1178

Flight Crew:

Nr. Surname Given name Job Duration
1  Kovalyonok  Vladimir Vasiliyevich  Commander 74d 17h 37m 
2  Savinykh  Viktor Petrovich  Flight engineer 74d 17h 37m 

Flight:

Manned two crew. Docked with Salyut 6. Fifth and final resident crew of the Salyut 6 spacestation; visiting crews: Interkosmos-missions Soyuz 39 on 23.03.1981 and Soyuz 40 on 15.05.1981; meteorological studies from the Bermuda-Triangle.
Transported to the Salyut-6 orbital station cosmonauts V V Kovalenko and V P Savinykh to carry out repairs and preventive maintenance and scientific and technical investigations and experiments. Recovered June 10, 1981 12:38 GMT.


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