Soyuz U | Yantar-4K1 3
A Soyuz U rocket launched Soyuz U | Yantar-4K1 3 from Baikonur Cosmodrome, Republic of Kazakhstan, targeting LEO.
- Launch time
- Status
- SUCCESS
- Operator
- Soviet Space Program
- Mission type
- Government/Top Secret
- Rocket
- Soyuz U
- Launch site
- Baikonur Cosmodrome, Republic of Kazakhstan
- Launch pad
- 31/6
- Payload
- —
- Target orbit
- LEO

Mission timeline
- 1980-10-30T10:00:00.000ZSoyuz U lifts off from Baikonur Cosmodrome, Republic of Kazakhstan.
- Soyuz U passes through max aerodynamic pressure (Max Q).
- Main engine cutoff — the first stage shuts down as planned.
- Stage separation — the first stage separates cleanly.
- Second-stage engine ignites for the next phase of flight.
- Orbit insertion confirmed — the vehicle is now in LEO.
- Mission success — all objectives completed.