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Soviet Space ProgramSoyuz U41/1, Plesetsk Cosmodrome, Russian Federation
Yantar-2K 21
Launched
August 13, 1981
Summary
Yantar-2K 21 launched on a Soviet Space Program Soyuz U from 41/1, Plesetsk Cosmodrome, Russian Federation on August 13, 1981. It was Soviet Space Program's 1,515th launch, 64th this year and humanity's 2,471st orbital launch attempt. It was the 252nd Soyuz U flight and the 29th this year. The payload was bound for low Earth orbit (LEO). Kosmos-1296, one of 2 catalogued objects, reached a 178 × 360 km orbit inclined 67.1°. 2 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Soyuz U · Soviet Space Program
- Booster
- No booster details on record.
- Mission
- Government/Top Secret · Low Earth Orbit (LEO)
- Milestone
- 252nd Soyuz U flight · 29th this yearSoviet Space Program's 1,515th launch64th this yearhumanity's 2,471st orbital launch attempt80th orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-1296 · NORAD 12687 · 1981-078 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 1981-078A
- Epoch
- 1981-08-13 23:35:34 UTC
- Mean motion
- 16.04459763 rev/day
- Eccentricity
- 0.0136741
- Inclination
- 67.1427°
- Ascending node
- 192.613°
- Arg. of perigee
- 73.2688°
- Mean anomaly
- 288.3456°
- Element set
- 999
- Rev at epoch
- 4
- 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
2 catalogued: 1 payload, 1 rocket stage; none still in orbit
- Kosmos-1296 · NORAD 12687 · landed September 13, 1981
Soyuz-U 53-978 Blok-I · re-entered August 17, 1981
Data from J. McDowell, planet4589.org
About this launch
High-resolution film-return Yantar reconnaissance satellite
Pad
41/1, Plesetsk Cosmodrome, Russian Federation
207th launch from 41/1, 13th this year · 825th from Plesetsk Cosmodrome, Russian Federation
310 launches from this pad · 1,688 from Plesetsk Cosmodrome, Russian Federation
15 days after the previous launch from this pad
All launches from Plesetsk Cosmodrome, Russian FederationOpen in maps
Questions
When did Yantar-2K 21 launch?
Yantar-2K 21 launched on August 13, 1981. The time is known to the hour, not the minute.
Where can I watch Yantar-2K 21?
No webcast is on record for this launch.
What rocket launched Yantar-2K 21?
Soyuz U, flown by Soviet Space Program. Soyuz U spec sheet
Where did Yantar-2K 21 launch from?
41/1, Plesetsk Cosmodrome, Russian Federation.
What orbit did Yantar-2K 21 reach?
Kosmos-1296, one of 2 catalogued objects, reached a 178 × 360 km orbit inclined 67.1°.
How many satellites did Yantar-2K 21 launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).