Soyuz U | Bion 4

Soviet Space Program flew Soyuz U | Bion 4 on a Soyuz U out of Plesetsk Cosmodrome, Russian Federation, placing its payload in LEO.

Launch time
Status
SUCCESS
Operator
Soviet Space Program
Mission type
Biology
Rocket
Soyuz U
Launch site
Plesetsk Cosmodrome, Russian Federation
Launch pad
43/3 (43L)
Payload
—
Target orbit
LEO
Soyuz U | Bion 4 cover image

Mission timeline

  1. 1977-08-03T14:01:00.000Z
    Liftoff
    Soyuz U roars off the pad at Plesetsk Cosmodrome, Russian Federation.
  2. Max-Q
    The vehicle reaches Max Q, the highest aerodynamic load of the flight.
  3. Main engine cutoff (MECO)
    MECO — first-stage propulsion ends after a nominal burn.
  4. Stage separation
    Clean stage separation confirmed.
  5. Second-stage ignition
    The upper-stage engine lights up after separation.
  6. Orbit insertion
    Orbit insertion confirmed — now circling in LEO.
  7. Mission success
    All mission objectives achieved.

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