Proton-K/DM | US-KS 1

Operated by Soviet Space Program, the Government/Top Secret mission Proton-K/DM | US-KS 1 delivered its payload into Direct-GEO.

Launch time
Status
SUCCESS
Operator
Soviet Space Program
Mission type
Government/Top Secret
Rocket
Proton-K/DM
Launch site
Baikonur Cosmodrome, Republic of Kazakhstan
Launch pad
81/23 (81L)
Payload
—
Target orbit
Direct-GEO
Proton-K/DM | US-KS 1 cover image

Mission timeline

  1. 1975-10-08T00:30:00.000Z
    Liftoff
    Proton-K/DM lifts off from Baikonur Cosmodrome, Republic of Kazakhstan.
  2. Max-Q
    Proton-K/DM passes through max aerodynamic pressure (Max Q).
  3. Main engine cutoff (MECO)
    Main engine cutoff — the first stage shuts down as planned.
  4. Stage separation
    Stage separation — the first stage separates cleanly.
  5. Second-stage ignition
    Second-stage engine ignites for the next phase of flight.
  6. Orbit insertion
    Orbit insertion confirmed — the vehicle is now in Direct-GEO.
  7. Mission success
    Mission success — all objectives completed.

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