SOVIET SPACE PROGRAM
Soyuz U | Yantar-4K2 10
—
—
Sep 25, 1984 at 14:30 UTC
▸ Flight profile›
Initializing Launch Globe…
PAD43/4 (43R)
SITEPlesetsk Cosmodrome, Russian Federation →ORBITLow Earth Orbit
TYPEGovernment/Top Secret
MISSION OVERVIEW
Film-return reconnaissance satellite
LAUNCH DETAILS
VEHICLE
Soyuz UAGENCY
Soviet Space ProgramMISSION
Yantar-4K2 10
MISSION TYPE
Government/Top Secret
TARGET ORBIT
Low Earth Orbit
LAUNCH PAD
43/4 (43R)LAUNCH SITE
Plesetsk Cosmodrome, Russian FederationCOUNTRY
RUS
LAUNCH TIME VERIFICATION
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: 40247ee2-0ae9-4d4a-af53-719f0656e716
Reported date: Sep 25, 1984 at 14:30 UTC
Last synced: 1 minute ago
This launch date and time are confirmed by the launch provider. Countdown is active.
LAUNCH MAP
PAD WEATHER
Loading weather…
CAN YOU SEE THIS LAUNCH?
Select a location to check if this launch is visible from where you are
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 | Yantar-4K2 10 launch?
The Soyuz U | Yantar-4K2 10 is scheduled for Tuesday, September 25, 1984 at 2:30 PM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: SUCCESS.
What rocket is being used for Yantar-4K2 10?
The Soyuz U | Yantar-4K2 10 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 | Yantar-4K2 10 launching from?
The launch takes place from 43/4 (43R) at Plesetsk Cosmodrome, Russian Federation.
What orbit is Yantar-4K2 10 going to?
The Yantar-4K2 10 mission is targeting Low Earth Orbit.
Who is launching Yantar-4K2 10?
The Soyuz U | Yantar-4K2 10 is operated by Soviet Space Program.
Can I watch the Soyuz U | Yantar-4K2 10 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 29, 2026 23:44 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 29, 2026 23:44 UTC
Launch date set: Sep 25, 1984 at 14:30 UTC
NET (No Earlier Than) confirmed by Soviet Space Program
Mar 29, 2026 23:44 UTC
Launch completed successfully
Updated via Launch Library 2
LIVE DATA SOURCES
Last data sync: 1 minute ago
●Launch Library 21 minute ago
Launch ID: 40247ee2-0ae9-4d4a-af53-719f0656e716
●Open-Meteo Weather2 weeks ago
Pad weather at 62.93, 40.46
BROWSE BY
Mission Profile
Yantar-4K2 10 was a Soyuz U mission operated by Soviet Space Program that lifted off from 43/4 (43R), Plesetsk Cosmodrome, Russian Federation on September 25, 1984. The flight carried its payload on a government/top secret mission to Low Earth Orbit. The launch was a success.