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Soviet Space ProgramVoskhod41/1, Plesetsk Cosmodrome, Russian Federation

Zenit-4 55

Launched

April 4, 1969

Launch Successful

Image: RKK Energia

Summary

Zenit-4 55 launched on a Soviet Space Program Voskhod from 41/1, Plesetsk Cosmodrome, Russian Federation on April 4, 1969. It was Soviet Space Program's 397th launch, 26th this year and humanity's 958th orbital launch attempt. It was the 90th Voskhod flight and the 9th this year. The payload was bound for low Earth orbit (LEO). Kosmos-276, one of 2 catalogued objects, reached a 208 × 378 km orbit inclined 81.4°. 2 objects from this launch are catalogued, one of them a payload.

Watch
No webcast on record.
Vehicle
Voskhod · Soviet Space Program
Booster
No booster details on record.
Mission
Government/Top Secret · Low Earth Orbit (LEO)
Milestone
90th Voskhod flight · 9th this yearSoviet Space Program's 397th launch26th this yearhumanity's 958th orbital launch attempt39th orbital launch attempt this year

Flight preview

Orbit: as tracked

81.4°Inclination
208 × 378 kmPerigee × apogeefrom mean elements
90.2 minPeriodfrom mean elements
11.9°Ascending node
21013 d agoElement epoch1969-04-04 13:09 UTC · stale

Kosmos-276 · NORAD 3854 · 1969-032 · Space-Track · tracking 1 of 2 objects

Show the numbers for orbit elements
Object
TBA - TO BE ASSIGNED
Object ID
1969-032A
Epoch
1969-04-04 13:09:53 UTC
Mean motion
15.96027751 rev/day
Eccentricity
0.0127642
Inclination
81.3767°
Ascending node
11.9007°
Arg. of perigee
84.4933°
Mean anomaly
277.0891°
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-276 · NORAD 3854 · landed April 11, 1969

Voskhod (N90) Blok-I · re-entered April 14, 1969

Data from J. McDowell, planet4589.org

About this launch

Zenit-4 film-return reconnaissance satellite.

Pad

Map of 41/1

41/1, Plesetsk Cosmodrome, Russian Federation

51st launch from 41/1, 8th this year · 80th from Plesetsk Cosmodrome, Russian Federation

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

8 days 21 hours after the previous launch from this pad

Questions

When did Zenit-4 55 launch?

Zenit-4 55 launched on April 4, 1969. The time is known to the hour, not the minute.

Where can I watch Zenit-4 55?

No webcast is on record for this launch.

What rocket launched Zenit-4 55?

Voskhod, flown by Soviet Space Program. Voskhod spec sheet

Where did Zenit-4 55 launch from?

41/1, Plesetsk Cosmodrome, Russian Federation.

What orbit did Zenit-4 55 reach?

Kosmos-276, one of 2 catalogued objects, reached a 208 × 378 km orbit inclined 81.4°.

How many satellites did Zenit-4 55 launch?

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