UR-500 | Proton 3

Operated by Soviet Space Program, the Astrophysics mission UR-500 | Proton 3 delivered its payload into LEO.

Launch time
Status
SUCCESS
Operator
Soviet Space Program
Mission type
Astrophysics
Rocket
UR-500
Launch site
Baikonur Cosmodrome, Republic of Kazakhstan
Launch pad
81/23 (81L)
Payload
—
Target orbit
LEO
UR-500 | Proton 3 cover image

Mission timeline

  1. 1966-07-06T12:57:00.000Z
    Liftoff
    UR-500 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 LEO.
  7. Mission success
    All mission objectives achieved.

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