RUSSIAN FEDERAL SPACE AGENCY (ROSCOSMOS)
Soyuz U | Yantar-4KS1M 5
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Apr 28, 1994 at 17:14 UTC
▸ Flight profile›
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PAD31/6
SITEBaikonur Cosmodrome, Republic of Kazakhstan →ORBITLow Earth Orbit
TYPEGovernment/Top Secret
MISSION OVERVIEW
The Neman or Yantar-4KS1M satellites were improved versions of the Terilen elctro-optical reconnaissance satellites. They were transmitting the data via Potok (Geizer) relay satellites.
LAUNCH DETAILS
VEHICLE
Soyuz UMISSION
Yantar-4KS1M 5
MISSION TYPE
Government/Top Secret
TARGET ORBIT
Low Earth Orbit
LAUNCH PAD
31/6LAUNCH SITE
Baikonur Cosmodrome, Republic of KazakhstanCOUNTRY
RUS
LAUNCH TIME VERIFICATION
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: 01a19467-3ab2-4323-a85c-b788b48475d8
Reported date: Apr 28, 1994 at 17:14 UTC
Last synced: 15 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 | Yantar-4KS1M 5 launch?
The Soyuz U | Yantar-4KS1M 5 is scheduled for Thursday, April 28, 1994 at 5:14 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-4KS1M 5?
The Soyuz U | Yantar-4KS1M 5 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-4KS1M 5 launching from?
The launch takes place from 31/6 at Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit is Yantar-4KS1M 5 going to?
The Yantar-4KS1M 5 mission is targeting Low Earth Orbit.
Who is launching Yantar-4KS1M 5?
The Soyuz U | Yantar-4KS1M 5 is operated by Russian Federal Space Agency (ROSCOSMOS).
Can I watch the Soyuz U | Yantar-4KS1M 5 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 03:06 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 29, 2026 03:06 UTC
Launch date set: Apr 28, 1994 at 17:14 UTC
NET (No Earlier Than) confirmed by Russian Federal Space Agency (ROSCOSMOS)
Mar 29, 2026 03:06 UTC
Launch completed successfully
Updated via Launch Library 2
LIVE DATA SOURCES
Last data sync: 15 minutes ago
●Launch Library 215 minutes ago
Launch ID: 01a19467-3ab2-4323-a85c-b788b48475d8
●Open-Meteo Weather17 hours ago
Pad weather at 46, 63.56
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Mission Profile
Yantar-4KS1M 5 was a Soyuz U mission operated by Russian Federal Space Agency (ROSCOSMOS) that lifted off from 31/6, Baikonur Cosmodrome, Republic of Kazakhstan on April 28, 1994. The flight carried its payload on a government/top secret mission to Low Earth Orbit. The launch was a success.