Soyuz U | Zenit-4MT 13

Operated by Soviet Space Program, the Government/Top Secret mission Soyuz U | Zenit-4MT 13 delivered its payload into LEO.

Launch time
Status
SUCCESS
Operator
Soviet Space Program
Mission type
Government/Top Secret
Rocket
Soyuz U
Launch site
Plesetsk Cosmodrome, Russian Federation
Launch pad
43/3 (43L)
Payload
—
Target orbit
LEO
Soyuz U | Zenit-4MT 13 cover image

Mission timeline

  1. 1978-02-08T12:15:00.000Z
    Liftoff
    Liftoff confirmed — Soyuz U is airborne.
  2. Max-Q
    Max Q — Soyuz U endures peak structural stress during ascent.
  3. Main engine cutoff (MECO)
    First-stage main engine cutoff (MECO) confirmed.
  4. Stage separation
    The spent first stage separates from the upper stage.
  5. Second-stage ignition
    Upper stage ignites, continuing the journey toward orbit.
  6. Orbit insertion
    The mission reaches LEO, successfully entering orbit.
  7. Mission success
    The mission concludes successfully.

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