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Soyuz U | Soyuz 25

October 9, 1977 at 2:40 AM UTC

Baikonur Cosmodrome, Republic of Kazakhstan

Soyuz U | Soyuz 25 launch image
Mission imagery · Soyuz U

Launch details

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T−00d00h00m00s

October 9, 1977 at 2:40 AM UTC

Status: Launch Successful · Live feed refreshes every 30 seconds

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Baikonur Cosmodrome, Republic of Kazakhstan · 45.9200, 63.3420

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Rocket
Soyuz U
Launch site
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Baikonur Cosmodrome, Republic of Kazakhstan

Launch probability
-1%
Window opens
October 9, 1977 at 2:40 AM UTC
Window closes
October 9, 1977 at 2:40 AM UTC
Feed updated
June 14, 2023 at 8:42 AM UTC

Mission description

Soyuz 25 was meant to be the first crewed flight to the new Salyut 6 space station. The mission began on October 9, 1977, 02:40:35 UTC, launching Commander Vladimir Kovalyonok and Flight Engineer Valery Rumin into orbit. However, they failed to dock with the station despite five attempts, and had to abort the mission. The mission concluded with a safe landing back on Earth on October 11, 1977, 03:25:20 UTC.

Mission media

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Soyuz 25. Baikonur cosmodrome. Launch

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Vehicle

Soyuz U

Soyuz

Height

51.1 m

Diameter

2.95 m

LEO capacity

6,900 kg

Successful launches

694

Launch complex

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Baikonur Cosmodrome, Republic of Kazakhstan

The Baikonur Cosmodrome is a spaceport operated by Russia within Kazakhstan. Located in the Kazakh city of Baikonur, it is the largest operational space launch facility in terms of area. All Russian crewed spaceflights are launched from Baikonur.

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