Soviet Space ProgramSoyuz1/5, Baikonur Cosmodrome, Republic of Kazakhstan
Soyuz 21
Launched
July 6, 1976 · 12:08 UTC
Image: The original uploader was Aklyuch at Russian Wikipedia.
Summary
Soyuz 21 launched on a Soviet Space Program Soyuz from 1/5, Baikonur Cosmodrome, Republic of Kazakhstan on July 6, 1976 at 12:08 UTC. It was Soviet Space Program's 1,026th launch, 47th this year and humanity's 1,848th orbital launch attempt. It was the 31st Soyuz flight and the 1st this year. The payload was bound for low Earth orbit (LEO). Soyuz-21, one of 2 catalogued objects, reached a 271 × 281 km orbit inclined 51.6°. 2 crew members flew: Boris Volynov and Vitaly Zholobov. The spacecraft was Soyuz 21 (Soyuz 7K-T 11F615A8 #41). 2 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
- 31st Soyuz flight · 1st this yearSoviet Space Program's 1,026th launch47th this yearhumanity's 1,848th orbital launch attempt65th orbital launch attempt this year
Crew
Boris VolynovCommander · RFSA · age 41 · 2nd flight
Vitaly ZholobovFlight Engineer · RFSA · age 39 · first flight
Spacecraft
Soyuz 21 (Soyuz 7K-T 11F615A8 #41)
Soyuz 21 was a Soyuz spacecraft which launched on 6 July 1976 12:08 UTC. It transported two cosmonauts on the first flight to Salyut. The crew was Boris Volynov and Vitaly Zholobov.
- Destination: Salyut 5
- Mission length: 49 days
- Docked July 7, 1976 at Salyut-5 forward
The Soyuz spacecraft safely landed in Kazakhstan.
Flight preview
Orbit: as tracked
Soyuz-21 · NORAD 8934 · 1976-064 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 1976-064A
- Epoch
- 1976-07-08 08:44:24 UTC
- Mean motion
- 16.02019812 rev/day
- Eccentricity
- 0.0007581
- Inclination
- 51.5867°
- Ascending node
- 106.4975°
- Arg. of perigee
- 265.251°
- Mean anomaly
- 94.7593°
- Element set
- 999
- Rev at epoch
- 30
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: LEO.
Catalogued objects
2 catalogued: 1 payload, 1 rocket stage
- Soyuz-21 · NORAD 8934 · docked July 7, 1976
Soyuz No. 34 Blok-I · re-entered July 9, 1976
Data from J. McDowell, planet4589.org
About this launch
Soyuz 21 was the first crewed mission to the Salyut 5 military space station. The mission began on July 6, 1976, 12:08:45 UTC, launching Commander Boris Volynov and Flight Engineer Vitaly Zholobov into orbit. Spacecraft docked with the station on July 7. During their stay on the station, crew conducted scientific experiments, inculding the first use of Kristall furnace for crystal growth, solar observations and experiments of military nature. The mission was expected to last for 60 days, but emergincies occured on the 42nd day, which included shutdown of several onboard systems, oxygen regeneration system among those. Crew restored functionality of the spaceship, but both Volynov and Zholobov's health was deteriorated, and mission had to end early. The mission concluded after 49 days with a rough landing back on Earth on August 24, 1976, 18:32:17 UTC.
Pad
1/5, Baikonur Cosmodrome, Republic of Kazakhstan
154th launch from 1/5, 3rd this year · 458th from Baikonur Cosmodrome, Republic of Kazakhstan
Local pad time at liftoff: Jul 6, 5:08 PM GMT+5, in daylight
487 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
108 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did Soyuz 21 launch?
Soyuz 21 launched on July 6, 1976 at 12:08 UTC.
Where can I watch Soyuz 21?
No webcast is on record for this launch.
What rocket launched Soyuz 21?
Soyuz, flown by Soviet Space Program. Soyuz spec sheet
Where did Soyuz 21 launch from?
1/5, Baikonur Cosmodrome, Republic of Kazakhstan. Liftoff was Jul 6, 5:08 PM GMT+5 local time at the pad.
What orbit did Soyuz 21 reach?
Soyuz-21, one of 2 catalogued objects, reached a 271 × 281 km orbit inclined 51.6°.
Which program is Soyuz 21 part of?
Salyut and Soyuz. About Salyut