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Soviet Space ProgramVoskhod31/6, Baikonur Cosmodrome, Republic of Kazakhstan

Zenit-4 21

Launched

August 8, 1966

Launch Successful

Image: RKK Energia

Summary

Zenit-4 21 launched on a Soviet Space Program Voskhod from 31/6, Baikonur Cosmodrome, Republic of Kazakhstan on August 8, 1966. It was Soviet Space Program's 196th launch, 34th this year and humanity's 595th orbital launch attempt. It was the 28th Voskhod flight and the 10th this year. The payload was bound for low Earth orbit (LEO). Kosmos-127, one of 2 catalogued objects, reached a 211 × 277 km orbit inclined 51.8°. 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
28th Voskhod flight · 10th this yearSoviet Space Program's 196th launch34th this yearhumanity's 595th orbital launch attempt78th orbital launch attempt this year

Flight preview

Orbit: as tracked

51.8°Inclination
211 × 277 kmPerigee × apogeefrom mean elements
89.2 minPeriodfrom mean elements
139.2°Ascending node
21983 d agoElement epoch1966-08-08 14:17 UTC · stale

Kosmos-127 · NORAD 2391 · 1966-071 · Space-Track · tracking 1 of 2 objects

Show the numbers for orbit elements
Object
TBA - TO BE ASSIGNED
Object ID
1966-071A
Epoch
1966-08-08 14:17:10 UTC
Mean motion
16.13598976 rev/day
Eccentricity
0.0050253
Inclination
51.8418°
Ascending node
139.1676°
Arg. of perigee
64.5087°
Mean anomaly
296.029°
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-127 · NORAD 2391 · landed August 16, 1966

Voskhod (N28) Blok-I · re-entered August 12, 1966

Data from J. McDowell, planet4589.org

About this launch

Zenit-4 film-return reconnaissance satellite.

Pad

Map of 31/6

31/6, Baikonur Cosmodrome, Republic of Kazakhstan

56th launch from 31/6, 20th this year · 152nd from Baikonur Cosmodrome, Republic of Kazakhstan

430 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan

11 days after the previous launch from this pad

Questions

When did Zenit-4 21 launch?

Zenit-4 21 launched on August 8, 1966. The time is known to the hour, not the minute.

Where can I watch Zenit-4 21?

No webcast is on record for this launch.

What rocket launched Zenit-4 21?

Voskhod, flown by Soviet Space Program. Voskhod spec sheet

Where did Zenit-4 21 launch from?

31/6, Baikonur Cosmodrome, Republic of Kazakhstan.

What orbit did Zenit-4 21 reach?

Kosmos-127, one of 2 catalogued objects, reached a 211 × 277 km orbit inclined 51.8°.

How many satellites did Zenit-4 21 launch?

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