Proton-K/D-1 | Vega-1
A Proton-K/D-1 rocket launched Proton-K/D-1 | Vega-1 from Baikonur Cosmodrome, Republic of Kazakhstan, targeting 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
- 200/39 (200L)
- Payload
- —
- Target orbit
- Venus flyby

Mission timeline
- 1984-12-15T09:16:24.000ZProton-K/D-1 clears the pad at Baikonur Cosmodrome, Republic of Kazakhstan and begins its ascent.
- Proton-K/D-1 pushes through the region of maximum dynamic pressure.
- First stage completes its burn; main engine cutoff.
- First and second stages separate on schedule.
- Second-stage ignition confirmed.
- Orbital insertion burn complete; now in Venus flyby.
- Mission declared a complete success.