SOVIET SPACE PROGRAM
Soyuz U | Bion 1
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Oct 31, 1973 at 18:24 UTC
▸ Flight profile›
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MISSION OVERVIEW
Biological research satellite carrying live organisms
LAUNCH DETAILS
VEHICLE
Soyuz UAGENCY
Soviet Space ProgramMISSION
Bion 1
MISSION TYPE
Biology
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: 72557b4a-b09e-43cb-b0fa-b1a11330217f
Reported date: Oct 31, 1973 at 18:24 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 | Bion 1 launch?
The Soyuz U | Bion 1 is scheduled for Wednesday, October 31, 1973 at 6:24 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 Bion 1?
The Soyuz U | Bion 1 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 | Bion 1 launching from?
The launch takes place from 43/3 (43L) at Plesetsk Cosmodrome, Russian Federation.
What orbit is Bion 1 going to?
The Bion 1 mission is targeting Low Earth Orbit.
Who is launching Bion 1?
The Soyuz U | Bion 1 is operated by Soviet Space Program.
Can I watch the Soyuz U | Bion 1 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 21:45 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 28, 2026 21:45 UTC
Launch date set: Oct 31, 1973 at 18:24 UTC
NET (No Earlier Than) confirmed by Soviet Space Program
Mar 28, 2026 21:45 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: 72557b4a-b09e-43cb-b0fa-b1a11330217f
●Open-Meteo Weather5 days ago
Pad weather at 62.93, 40.45
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Mission Profile
Bion 1 was a Soyuz U mission operated by Soviet Space Program that lifted off from 43/3 (43L), Plesetsk Cosmodrome, Russian Federation on October 31, 1973. The flight carried its payload on a biology mission to Low Earth Orbit. The launch was a success.