Human Spaceflights

International Flight-No. 60

Soyuz 25

USSR

early Salyut patch

Launch, orbit and landing data

Launch date:  09.10.1977
Launch time:  02:40 UT
Launch site:  Baikonur
Launch pad:  1
Altitude:  194 - 240 km
Inclination:  51,64°
Landing date:  11.10.1977
Landing time:  03:25 UT
Landing site:  185 km NW of Tselinograd

walkout photo

Crew Soyuz 25

alternate crew photo

alternate crew photo

alternate crew photo

Crew

No.   Surname Given names Job Flight No. Duration Orbits
1 USSR  Kovalyonok  Vladimir Vasiliyevich  Commander 1 2d 00h 44m  32 
2 USSR  Ryumin  Valeri Viktorovich  Flight Engineer 1 2d 00h 44m  32 

Crew seating arrangement

Launch
1  Kovalyonok
2  Ryumin
Soyuz spaceship
Landing
1  Kovalyonok
2  Ryumin

Animations: Soyuz

Launch deorbit entry
(requires Macromedia Flash Player)
with friendly permission of www.marscenter.it

Double Crew

No.   Surname Given names Job
1 USSR  Romanenko  Yuri Viktorovich  Commander
2 USSR  Ivanchenkov  Aleksandr Sergeyevich  Flight Engineer
Crew Soyuz 25 (double)

Flight

Launch from Baikonur; landing 185 km northwest of Tselinograd.

The first planned hard-docking on the space station Salyut failed, because of a malfunction in the docking systems. The hard docking was needed for the enabling of electrical connections. The reason was a faulty mechanism on the Soyuz capsule, which was discovered after the following mission. Another problem of this mission was, that only rookies flew. The rules were changed, so that a rookie only could fly together with a veteran cosmonaut. Until the mission of Soyuz TM-19 this rules were not changed again.

The premature return to Earth was without additional more problems.

Photos

Soyuz 25 launch

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Last update on April 24, 2009.

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