← All launches
Launch SuccessfulSoviet Space Program

Soyuz U: Bion 4

Biological research satellite carrying live organisms

Wednesday, 3 August 1977
Soyuz U: Bion 4

Mission Data

Soviet Space Program
🇷🇺Soviet Space ProgramEst. 1931
Launch VehicleSoyuz U
Vehicle FamilySoyuz
Vehicle Record694 of 714 launches (97.2%)
Provider TypeGovernment
Agency Record2288 successes / 168 failures (93%)
Success Streak17 consecutive
Mission TypeBiology
Target OrbitLow Earth Orbit
Launch Pad43/3 (43L)
Location🇷🇺 Plesetsk Cosmodrome, Russian Federation RUS
Orbital Launches This Year#75
Agency Launches This Year#60
Launches From This Pad235
Launches From This Site1,689
Status Note

The launch vehicle successfully inserted its payload(s) into the target orbit(s).

Launch Site

43/3 (43L) · 62.9273°N 40.4500°E

Launch data from Launch Library 2 by The Space Devs.