Proton | US-KS 4

A Proton rocket launched Proton | US-KS 4 from Baikonur Cosmodrome, Republic of Kazakhstan, targeting Direct-GEO.

Launch time
Status
SUCCESS
Operator
Soviet Space Program
Mission type
Government/Top Secret
Rocket
Proton
Launch site
Baikonur Cosmodrome, Republic of Kazakhstan
Launch pad
200/40
Payload
—
Target orbit
Direct-GEO
Proton | US-KS 4 cover image

Mission timeline

  1. 1987-10-28T15:15:00.000Z
    Liftoff
    Proton 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. Orbit insertion
    Orbit insertion confirmed — now circling in Direct-GEO.
  4. Mission success
    All mission objectives achieved.

Last updated: