Proton-K/D-1 | Vega-2
Operated by Soviet Space Program, the Robotic Exploration mission Proton-K/D-1 | Vega-2 delivered its payload into Venus flyby.
- Launch time
- Status
- SUCCESS
- Operator
- Soviet Space Program
- Mission type
- Robotic Exploration
- Rocket
- Proton-K/D-1
- Launch site
- Baikonur Cosmodrome, Republic of Kazakhstan
- Launch pad
- 200/40
- Payload
- —
- Target orbit
- Venus flyby

Mission timeline
- 1984-12-21T09:13:52.000ZProton-K/D-1 roars off the pad at Baikonur Cosmodrome, Republic of Kazakhstan.
- The vehicle reaches Max Q, the highest aerodynamic load of the flight.
- MECO — first-stage propulsion ends after a nominal burn.
- Clean stage separation confirmed.
- The upper-stage engine lights up after separation.
- Orbit insertion confirmed — now circling in Venus flyby.
- All mission objectives achieved.