Soviet Space ProgramSoyuz1/5, Baikonur Cosmodrome, Republic of Kazakhstan
Soyuz 18
Launched
May 24, 1975 · 14:58 UTC

Image: User Audin on en.wikipedia
Summary
Soyuz 18 launched on a Soviet Space Program Soyuz from 1/5, Baikonur Cosmodrome, Republic of Kazakhstan on May 24, 1975 at 14:58 UTC. It was Soviet Space Program's 918th launch, 32nd this year and humanity's 1,698th orbital launch attempt. It was the 30th Soyuz flight and the 3rd this year. The payload was bound for low Earth orbit (LEO). Soyuz-18, one of 3 catalogued objects, reached a 193 × 237 km orbit inclined 51.7°. 2 crew members flew: Pyotr Klimuk and Vitaly Sevastyanov. The spacecraft was Soyuz 18 (Soyuz 7K-T 11F615A8 #40). 3 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Booster
- No booster details on record.
- Mission
- Human Exploration · Low Earth Orbit (LEO)
- Milestone
- 30th Soyuz flight · 3rd this yearSoviet Space Program's 918th launch32nd this yearhumanity's 1,698th orbital launch attempt47th orbital launch attempt this year
Crew
Pyotr KlimukCommander · RFSA · age 32 · 2nd flight
Vitaly SevastyanovFlight Engineer · RFSA · age 39 · 2nd flight
Spacecraft
Soyuz 18 (Soyuz 7K-T 11F615A8 #40)
Soyuz 18 was a Soyuz spacecraft which launched on 24 May 1975 14:58 UTC. It transported two cosmonauts on the final flight to Salyut 4. The crew was Pyotr Klimuk and Vitali Sevastyanov.
- Destination: Salyut 4
- Mission length: 62 days
- Docked May 25, 1975 at Salyut-4 forward
The Soyuz spacecraft safely landed in Kazakhstan.
Flight preview
Orbit: as tracked
Soyuz-18 · NORAD 7818 · 1975-044 · Space-Track · tracking 1 of 3 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 1975-044A
- Epoch
- 1975-05-24 17:44:16 UTC
- Mean motion
- 16.24270385 rev/day
- Eccentricity
- 0.0033597
- Inclination
- 51.688°
- Ascending node
- 115.5803°
- Arg. of perigee
- 68.9687°
- Mean anomaly
- 291.4879°
- Element set
- 999
- Rev at epoch
- 2
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: LEO. Ascent drawn from padside's representative profile.
Catalogued objects
3 catalogued: 1 payload, 1 rocket stage, 1 component
- Soyuz-18 · NORAD 7818 · docked May 25, 1975
Soyuz No. 33 Blok-I · re-entered May 27, 1975
Data from J. McDowell, planet4589.org
About this launch
Soyuz 18 was the second and final crew to man the Salyut 4 space station. The mission began on May 24th 1975 at 1458:10 UTC, launching Commander Pyotr Klimuk & Flight Engineer Vitali Sevastyanov into orbit docking with Salyut 4 2 days later. They stayed on the station for 63 days setting a new Soviet space endurance record at the time. Klimuk & Sevastyanov were the back-up crew for the failed Soyuz 18a mission so their mission goals included completing the goals of Soyuz 18a, continuing the work of Soyuz 17 & fixing or replacing equipment. They replaced a gas analyzer, switched a pumping condenser in the water regeneration system with a hand pump & fixed a spectrometer. Mostly the experiments were biological & medical but they also studied stars, planets, earth and its atmosphere with roughly 2000 photographs of Earth and 600 of the sun taken. The mission concluded with a safe landing on June 26th 1975 at 1418:18 UTC.
Pad

1/5, Baikonur Cosmodrome, Republic of Kazakhstan
148th launch from 1/5, 3rd this year · 426th from Baikonur Cosmodrome, Republic of Kazakhstan
Local pad time at liftoff: May 24, 7:58 PM GMT+5, in daylight
487 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
49 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did Soyuz 18 launch?
Soyuz 18 launched on May 24, 1975 at 14:58 UTC.
Where can I watch Soyuz 18?
No webcast is on record for this launch.
What rocket launched Soyuz 18?
Soyuz, flown by Soviet Space Program. Soyuz spec sheet
Where did Soyuz 18 launch from?
1/5, Baikonur Cosmodrome, Republic of Kazakhstan. Liftoff was May 24, 7:58 PM GMT+5 local time at the pad.
What orbit did Soyuz 18 reach?
Soyuz-18, one of 3 catalogued objects, reached a 193 × 237 km orbit inclined 51.7°.
Which program is Soyuz 18 part of?
Salyut and Soyuz. About Salyut
