Photo: NASA · Public domain (US government)

Zenit-4MK 21

Success Soviet Union, Soyuz U

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Zenit-4MK 21: the flight path in 3D, from the pad to orbit, seen from space Replay the flight in 3D

About this launch

High resolution optical reconnaissance satellite of the Vostok-based Zenit family.

More about this launch

Flight profileThe climb, seen from the side · 3D replay on the globe
to orbit0 km1,150 km downrange200 km up

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Launch window and padBaikonur Cosmodrome, Republic of Kazakhstan
Site
Baikonur Cosmodrome, Republic of Kazakhstan

Everything launching from Baikonur Cosmodrome →

Rocket and boosterSoyuz U
Vehicle
Soyuz U

Soyuz U: specs, record and next flights → Soviet Union: all its launches →

MissionGovernment/Top Secret · LEO

Government/Top Secret · LEO

What it put in orbit6 catalogued objects
ObjectTypeOrbit
COSMOS 636 1974-016A Payload re-entered 1974-04-03
SL-4 R/B 1974-016B Rocket body re-entered 1974-03-24
SL-4 DEB 1974-016C Debris re-entered 1974-03-25
COSMOS 636 DEB 1974-016D Debris re-entered 1974-04-04
COSMOS 636 DEB 1974-016E Debris re-entered 1974-04-03
COSMOS 636 DEB 1974-016F Debris re-entered 1974-04-05

COSPAR ID 1974-016. Orbits from the CelesTrak satellite catalogue (perigee × apogee, inclination).

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