Soyuz-U2 | Soyuz TM-4

Operated by Soviet Space Program, the Human Exploration mission Soyuz-U2 | Soyuz TM-4 delivered its payload into LEO.

Launch time
Status
SUCCESS
Operator
Soviet Space Program
Mission type
Human Exploration
Rocket
Soyuz-U
Launch site
Baikonur Cosmodrome, Republic of Kazakhstan
Launch pad
1/5
Payload
—
Target orbit
LEO
Soyuz-U2 | Soyuz TM-4 cover image

Mission timeline

  1. 1987-12-21T11:18:03.000Z
    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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