Proton-K/DM | Gorizont 4

Soviet Space Program flew Proton-K/DM | Gorizont 4 on a Proton-K/DM out of Baikonur Cosmodrome, Republic of Kazakhstan, placing its payload in Direct-GEO.

Launch time
Status
SUCCESS
Operator
Soviet Space Program
Mission type
Communications
Rocket
Proton-K/DM
Launch site
Baikonur Cosmodrome, Republic of Kazakhstan
Launch pad
200/39 (200L)
Payload
—
Target orbit
Direct-GEO
Proton-K/DM | Gorizont 4 cover image

Mission timeline

  1. 1980-06-14T00:49:50.000Z
    Liftoff
    Proton-K/DM roars off the pad at Baikonur Cosmodrome, Republic of Kazakhstan.
  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 Direct-GEO.
  7. Mission success
    All mission objectives achieved.

Last updated: