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Soviet Space ProgramKosmos-3M (11K65M)132/2, Plesetsk Cosmodrome, Russian Federation

Tselina-O 20

Launched

August 28, 1973

Launch Successful

Image: Julio Perez Suarez

Summary

Tselina-O 20 launched on a Soviet Space Program Kosmos-3M (11K65M) from 132/2, Plesetsk Cosmodrome, Russian Federation on August 28, 1973. It was Soviet Space Program's 761st launch, 49th this year and humanity's 1,488th orbital launch attempt. It was the 71st Kosmos-3M (11K65M) flight and the 7th this year. The payload was bound for low Earth orbit (LEO). The tracked orbit of Kosmos-582, one of 5 catalogued objects, from August 31, 1973, was 525 × 549 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
71st Kosmos-3M (11K65M) flight · 7th this yearSoviet Space Program's 761st launch49th this yearhumanity's 1,488th orbital launch attempt66th orbital launch attempt this year

Flight preview

Orbit: as tracked

74.0°Inclination
525 × 549 kmPerigee × apogeefrom mean elements
95.2 minPeriodfrom mean elements
130.9°Ascending node
19404 d agoElement epoch1973-08-31 06:11 UTC · stale

Kosmos-582 · NORAD 6802 · 1973-060 · Space-Track · tracking 1 of 5 objects

Show the numbers for orbit elements
Object
COSMOS 582
Object ID
1973-060A
Epoch
1973-08-31 06:11:27 UTC
Mean motion
15.12109852 rev/day
Eccentricity
0.0017171
Inclination
74.0364°
Ascending node
130.9393°
Arg. of perigee
359.4555°
Mean anomaly
0.6567°
Element set
999
Rev at epoch
43
B*
0

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, 1 debris, 2 components; none still in orbit

  • Kosmos-582 · NORAD 6802 · re-entered September 5, 1980

Kosmos-3M 33-201 Stage 2 · re-entered January 1, 1981

Data from J. McDowell, planet4589.org

About this launch

The Tselina-O (11F616) was one component of two-satellite Tselina ELINT satellite system. Tselina-O provided general ELINT surveillance to be examined in detail by the larger Tselina-D satellites.

Pad

Map of 132/2

132/2, Plesetsk Cosmodrome, Russian Federation

44th launch from 132/2, 1st this year · 305th from Plesetsk Cosmodrome, Russian Federation

172 launches from this pad · 1,688 from Plesetsk Cosmodrome, Russian Federation

245 days after the previous launch from this pad

Questions

When did Tselina-O 20 launch?

Tselina-O 20 launched on August 28, 1973. The time is known to the hour, not the minute.

Where can I watch Tselina-O 20?

No webcast is on record for this launch.

What rocket launched Tselina-O 20?

Kosmos-3M (11K65M), flown by Soviet Space Program. Kosmos-3M (11K65M) spec sheet

Where did Tselina-O 20 launch from?

132/2, Plesetsk Cosmodrome, Russian Federation.

What orbit did Tselina-O 20 reach?

The tracked orbit of Kosmos-582, one of 5 catalogued objects, from August 31, 1973, was 525 × 549 km inclined 74.0°.

How many satellites did Tselina-O 20 launch?

1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).