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Soviet Space ProgramKosmos 11K63133/3 (133L), Plesetsk Cosmodrome, Russian Federation

DS-P1-Yu 20

Launched

April 4, 1969

Launch Successful

Image: Gunter Krebs

Summary

DS-P1-Yu 20 launched on a Soviet Space Program Kosmos 11K63 from 133/3 (133L), Plesetsk Cosmodrome, Russian Federation on April 4, 1969. It was Soviet Space Program's 398th launch, 27th this year and humanity's 959th orbital launch attempt. It was the 40th Kosmos 11K63 flight and the 4th this year. The payload was bound for low Earth orbit (LEO). Kosmos-277, one of 2 catalogued objects, reached a 278 × 462 km orbit inclined 70.9°. 2 objects from this launch are catalogued, one of them a payload.

Watch
No webcast on record.
Vehicle
Kosmos 11K63 · Soviet Space Program
Booster
No booster details on record.
Mission
Test Target · Low Earth Orbit (LEO)
Milestone
40th Kosmos 11K63 flight · 4th this yearSoviet Space Program's 398th launch27th this yearhumanity's 959th orbital launch attempt40th orbital launch attempt this year

Flight preview

Orbit: as tracked

70.9°Inclination
278 × 462 kmPerigee × apogeefrom mean elements
91.8 minPeriodfrom mean elements
27.1°Ascending node
21013 d agoElement epoch1969-04-04 15:50 UTC · stale

Kosmos-277 · NORAD 3855 · 1969-033 · Space-Track · tracking 1 of 2 objects

Show the numbers for orbit elements
Object
TBA - TO BE ASSIGNED
Object ID
1969-033A
Epoch
1969-04-04 15:50:13 UTC
Mean motion
15.68568294 rev/day
Eccentricity
0.0136031
Inclination
70.9371°
Ascending node
27.112°
Arg. of perigee
87.9272°
Mean anomaly
273.7509°
Element set
999
Rev at epoch
2
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-277 · NORAD 3855 · re-entered July 6, 1969

Kosmos-2 (N40) Stage 2 · re-entered May 18, 1969

Data from J. McDowell, planet4589.org

About this launch

The DS-P1-Yu series of satellites was used to calibrate space surveillance and early warning radars.

Pad

Map of 133/3 (133L)

133/3 (133L), Plesetsk Cosmodrome, Russian Federation

17th launch from 133/3 (133L), 3rd this year · 81st from Plesetsk Cosmodrome, Russian Federation

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

6 days 20 hours after the previous launch from this pad

Questions

When did DS-P1-Yu 20 launch?

DS-P1-Yu 20 launched on April 4, 1969. The time is known to the hour, not the minute.

Where can I watch DS-P1-Yu 20?

No webcast is on record for this launch.

What rocket launched DS-P1-Yu 20?

Kosmos 11K63, flown by Soviet Space Program. Kosmos 11K63 spec sheet

Where did DS-P1-Yu 20 launch from?

133/3 (133L), Plesetsk Cosmodrome, Russian Federation.

What orbit did DS-P1-Yu 20 reach?

Kosmos-277, one of 2 catalogued objects, reached a 278 × 462 km orbit inclined 70.9°.

How many satellites did DS-P1-Yu 20 launch?

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