Soviet Space ProgramKosmos-3M (11K65M)132/1 (132L), Plesetsk Cosmodrome, Russian Federation
Strela-2M 21
Launched
August 28, 1979
Image: Julio Perez Suarez
Summary
Strela-2M 21 launched on a Soviet Space Program Kosmos-3M (11K65M) from 132/1 (132L), Plesetsk Cosmodrome, Russian Federation on August 28, 1979. It was Soviet Space Program's 1,339th launch, 66th this year and humanity's 2,254th orbital launch attempt. It was the 208th Kosmos-3M (11K65M) flight and the 13th this year. The payload was bound for low Earth orbit (LEO). The tracked orbit of Kosmos-1125, one of 5 catalogued objects, from August 30, 1979, was 800 × 817 km inclined 74.0°. 5 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Kosmos-3M (11K65M) · Soviet Space Program
- Booster
- No booster details on record.
- Mission
- Government/Top Secret · Low Earth Orbit (LEO)
- Milestone
- 208th Kosmos-3M (11K65M) flight · 13th this yearSoviet Space Program's 1,339th launch66th this yearhumanity's 2,254th orbital launch attempt81st orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-1125 · NORAD 11510 · 1979-078 · Space-Track · tracking 1 of 5 objects
Show the numbers for orbit elements
- Object
- COSMOS 1125
- Object ID
- 1979-078A
- Epoch
- 1979-08-30 13:13:06 UTC
- Mean motion
- 14.27044392 rev/day
- Eccentricity
- 0.0012166
- Inclination
- 74.0418°
- Ascending node
- 353.0964°
- Arg. of perigee
- 32.6731°
- Mean anomaly
- 327.5213°
- Element set
- 999
- Rev at epoch
- 34
- B*
- 6.95e-8
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: LEO.
Catalogued objects
5 catalogued: 1 payload, 1 rocket stage, 3 components; 3 still in orbit
- Kosmos-1125 · NORAD 11510 · in orbit
Kosmos-3M 82-419 Stage 2 · in orbit
Data from J. McDowell, planet4589.org
About this launch
Military communications satellite
Pad

132/1 (132L), Plesetsk Cosmodrome, Russian Federation
99th launch from 132/1 (132L), 7th this year · 703rd from Plesetsk Cosmodrome, Russian Federation
212 launches from this pad · 1,688 from Plesetsk Cosmodrome, Russian Federation
47 days after the previous launch from this pad
All launches from Plesetsk Cosmodrome, Russian FederationOpen in maps
Questions
When did Strela-2M 21 launch?
Strela-2M 21 launched on August 28, 1979. The time is known to the hour, not the minute.
Where can I watch Strela-2M 21?
No webcast is on record for this launch.
What rocket launched Strela-2M 21?
Kosmos-3M (11K65M), flown by Soviet Space Program. Kosmos-3M (11K65M) spec sheet
Where did Strela-2M 21 launch from?
132/1 (132L), Plesetsk Cosmodrome, Russian Federation.
What orbit did Strela-2M 21 reach?
The tracked orbit of Kosmos-1125, one of 5 catalogued objects, from August 30, 1979, was 800 × 817 km inclined 74.0°.
How many satellites did Strela-2M 21 launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).
