Proton | TKS 2
Proton | TKS 2 rode a Proton into space from Baikonur Cosmodrome, Republic of Kazakhstan, deploying its payload to LEO.
- Launch time
- Status
- SUCCESS
- Operator
- Soviet Space Program
- Mission type
- Resupply
- Rocket
- Proton
- Launch site
- Baikonur Cosmodrome, Republic of Kazakhstan
- Launch pad
- 200/39 (200L)
- Payload
- —
- Target orbit
- LEO

Mission timeline
- 1981-04-25T02:01:00.000ZProton roars off the pad at Baikonur Cosmodrome, Republic of Kazakhstan.
- The vehicle reaches Max Q, the highest aerodynamic load of the flight.
- Orbit insertion confirmed — now circling in LEO.
- All mission objectives achieved.