SOVIET SPACE PROGRAM
Soyuz U | Zenit-4MK 13
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May 18, 1973 at 11:00 UTC
▸ Flight profile›
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PAD43/3 (43L)
SITEPlesetsk Cosmodrome, Russian Federation →ORBITLow Earth Orbit
TYPEGovernment/Top Secret
MISSION OVERVIEW
High resolution optical reconnaissance satellite of the Vostok-based Zenit family.
LAUNCH DETAILS
VEHICLE
Soyuz UAGENCY
Soviet Space ProgramMISSION
Zenit-4MK 13
MISSION TYPE
Government/Top Secret
TARGET ORBIT
Low Earth Orbit
LAUNCH PAD
43/3 (43L)LAUNCH SITE
Plesetsk Cosmodrome, Russian FederationCOUNTRY
RUS
LAUNCH TIME VERIFICATION
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: 16c8b7ab-1d62-4fd9-a86c-a6e5447ba3da
Reported date: May 18, 1973 at 11:00 UTC
Last synced: 4 minutes ago
This launch date and time are confirmed by the launch provider. Countdown is active.
LAUNCH MAP
PAD WEATHER
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VEHICLE — Soyuz U →
MANUFACTURER
Russian Federal Space Agency (ROSCOSMOS)
FLIGHTS
714
SUCCESSES
694
SUCCESS RATE
97.2%
FREQUENTLY ASKED QUESTIONS
When is the Soyuz U | Zenit-4MK 13 launch?
The Soyuz U | Zenit-4MK 13 is scheduled for Friday, May 18, 1973 at 11:00 AM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: SUCCESS.
What rocket is being used for Zenit-4MK 13?
The Soyuz U | Zenit-4MK 13 mission uses the Soyuz U rocket, manufactured by Russian Federal Space Agency (ROSCOSMOS). The Soyuz U has flown 714 times with a 97.2% success rate.
Where is the Soyuz U | Zenit-4MK 13 launching from?
The launch takes place from 43/3 (43L) at Plesetsk Cosmodrome, Russian Federation.
What orbit is Zenit-4MK 13 going to?
The Zenit-4MK 13 mission is targeting Low Earth Orbit.
Who is launching Zenit-4MK 13?
The Soyuz U | Zenit-4MK 13 is operated by Soviet Space Program.
Can I watch the Soyuz U | Zenit-4MK 13 launch live?
Yes. Visit the launch detail page on Space Launch Live for embedded YouTube webcasts, replay videos, and links to live coverage from SpaceX, NASA, NASASpaceflight, and other channels.
LAUNCH TIMELINE
Mar 28, 2026 21:44 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 28, 2026 21:44 UTC
Launch date set: May 18, 1973 at 11:00 UTC
NET (No Earlier Than) confirmed by Soviet Space Program
Mar 28, 2026 21:44 UTC
Launch completed successfully
Updated via Launch Library 2
LIVE DATA SOURCES
Last data sync: 4 minutes ago
●Launch Library 24 minutes ago
Launch ID: 16c8b7ab-1d62-4fd9-a86c-a6e5447ba3da
●Open-Meteo Weather5 days ago
Pad weather at 62.93, 40.45
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Mission Profile
Zenit-4MK 13 was a Soyuz U mission operated by Soviet Space Program that lifted off from 43/3 (43L), Plesetsk Cosmodrome, Russian Federation on May 18, 1973. The flight carried its payload on a government/top secret mission to Low Earth Orbit. The launch was a success.