Soyuz 2.1b | Pion-NKS No. 1 (Kosmos 2550)

The Government/Top Secret flight Soyuz 2.1b | Pion-NKS No. 1 (Kosmos 2550) departed Plesetsk Cosmodrome, Russian Federation atop a Soyuz 2.1b, bound for LEO.

Launch time
Status
SUCCESS
Operator
Russian Space Forces
Mission type
Government/Top Secret
Rocket
Soyuz 2.1b
Launch site
Plesetsk Cosmodrome, Russian Federation
Launch pad
43/4 (43R)
Payload
—
Target orbit
LEO
Soyuz 2.1b | Pion-NKS No. 1 (Kosmos 2550) cover image

Mission timeline

  1. 2021-06-25T19:50:00.000Z
    Liftoff
    Soyuz 2.1b 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.

Last updated: