Soviet Space ProgramSoyuz 11A511L31/6, Baikonur Cosmodrome, Republic of Kazakhstan
T2K 3
Launched
August 12, 1971
Summary
T2K 3 launched on a Soviet Space Program Soyuz 11A511L from 31/6, Baikonur Cosmodrome, Republic of Kazakhstan on August 12, 1971. It was Soviet Space Program's 594th launch, 53rd this year and humanity's 1,250th orbital launch attempt. It was the 3rd Soyuz 11A511L flight and the 2nd this year. The payload was bound for low Earth orbit (LEO). Kosmos-434, one of 4 catalogued objects, reached a 196 × 274 km orbit inclined 51.5°. 4 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Soyuz 11A511L · Soviet Space Program
- Booster
- No booster details on record.
- Mission
- Lunar Exploration · Low Earth Orbit (LEO)
- Milestone
- 3rd Soyuz 11A511L flight · 2nd this yearSoviet Space Program's 594th launch53rd this yearhumanity's 1,250th orbital launch attempt79th orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-434 · NORAD 5407 · 1971-069 · Space-Track · tracking 1 of 4 objects
Show the numbers for orbit elements
- Object
- COSMOS 434
- Object ID
- 1971-069A
- Epoch
- 1971-08-12 09:45:59 UTC
- Mean motion
- 16.1693821 rev/day
- Eccentricity
- 0.005881
- Inclination
- 51.539°
- Ascending node
- 51.4677°
- Arg. of perigee
- 58.4459°
- Mean anomaly
- 302.2239°
- Element set
- 999
- Rev at epoch
- 3
- 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
4 catalogued: 1 payload, 1 rocket stage, 2 components; none still in orbit
- Kosmos-434 · NORAD 5407 · re-entered August 23, 1981
Soyuz-L No. 017 Blok-I · re-entered August 18, 1971
Data from J. McDowell, planet4589.org
About this launch
Uncrewed lunar lander prototype without landing legs.
Pad

31/6, Baikonur Cosmodrome, Republic of Kazakhstan
119th launch from 31/6, 11th this year · 334th from Baikonur Cosmodrome, Republic of Kazakhstan
430 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
6 days 19 hours after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did T2K 3 launch?
T2K 3 launched on August 12, 1971. The time is known to the hour, not the minute.
Where can I watch T2K 3?
No webcast is on record for this launch.
What rocket launched T2K 3?
Soyuz 11A511L, flown by Soviet Space Program. Soyuz 11A511L spec sheet
Where did T2K 3 launch from?
31/6, Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit did T2K 3 reach?
Kosmos-434, one of 4 catalogued objects, reached a 196 × 274 km orbit inclined 51.5°.
How many satellites did T2K 3 launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).