SOVIET SPACE PROGRAM
Soyuz U | Yantar-4K2 40
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Aug 16, 1988 at 13:00 UTC
▸ Flight profile›
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PAD1/5
SITEBaikonur Cosmodrome, Republic of Kazakhstan →ORBITLow Earth Orbit
TYPEGovernment/Top Secret
MISSION OVERVIEW
Film-return reconnaissance satellite
LAUNCH DETAILS
VEHICLE
Soyuz UAGENCY
Soviet Space ProgramMISSION
Yantar-4K2 40
MISSION TYPE
Government/Top Secret
TARGET ORBIT
Low Earth Orbit
LAUNCH PAD
1/5LAUNCH SITE
Baikonur Cosmodrome, Republic of KazakhstanCOUNTRY
RUS
LAUNCH TIME VERIFICATION
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: 1f9b76fc-41c4-418a-9ee3-ec5e882f012b
Reported date: Aug 16, 1988 at 13:00 UTC
Last synced: 45 seconds 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 | Yantar-4K2 40 launch?
The Soyuz U | Yantar-4K2 40 is scheduled for Tuesday, August 16, 1988 at 1:00 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 40?
The Soyuz U | Yantar-4K2 40 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 40 launching from?
The launch takes place from 1/5 at Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit is Yantar-4K2 40 going to?
The Yantar-4K2 40 mission is targeting Low Earth Orbit.
Who is launching Yantar-4K2 40?
The Soyuz U | Yantar-4K2 40 is operated by Soviet Space Program.
Can I watch the Soyuz U | Yantar-4K2 40 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 05:34 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 29, 2026 05:34 UTC
Launch date set: Aug 16, 1988 at 13:00 UTC
NET (No Earlier Than) confirmed by Soviet Space Program
Mar 29, 2026 05:34 UTC
Launch completed successfully
Updated via Launch Library 2
LIVE DATA SOURCES
Last data sync: 45 seconds ago
●Launch Library 245 seconds ago
Launch ID: 1f9b76fc-41c4-418a-9ee3-ec5e882f012b
●Open-Meteo Weather1 day ago
Pad weather at 45.92, 63.34
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Mission Profile
Yantar-4K2 40 was a Soyuz U mission operated by Soviet Space Program that lifted off from 1/5, Baikonur Cosmodrome, Republic of Kazakhstan on August 16, 1988. The flight carried its payload on a government/top secret mission to Low Earth Orbit. The launch was a success.