Proton / UR-500 K/D | Soyuz 7K-L1 No.8L
Soviet Space Program flew Proton / UR-500 K/D | Soyuz 7K-L1 No.8L on a Proton out of Baikonur Cosmodrome, Republic of Kazakhstan, placing its payload in the designated orbit.
- Launch time
- Status
- FAILED
- Operator
- Soviet Space Program
- Mission type
- Orbital
- Rocket
- Proton
- Launch site
- Baikonur Cosmodrome, Republic of Kazakhstan
- Launch pad
- 81/23 (81L)
- Payload
- —
- Target orbit
- Unknown

Mission timeline
- 1968-07-21T00:00:00.000ZProton roars off the pad at Baikonur Cosmodrome, Republic of Kazakhstan.
- The vehicle reaches Max Q, the highest aerodynamic load of the flight.
- Flight anomaly — the mission is unsuccessful.