Sputnik 8A91 | D-1 1
Sputnik 8A91 | D-1 1 lifted off aboard a Sputnik 8A91 from Baikonur Cosmodrome, Republic of Kazakhstan, carrying its payload to LEO.
- Launch time
- Status
- FAILED
- Operator
- Soviet Space Program
- Mission type
- Earth Science
- Rocket
- Sputnik 8A91
- Launch site
- Baikonur Cosmodrome, Republic of Kazakhstan
- Launch pad
- 1/5
- Payload
- —
- Target orbit
- LEO

Mission timeline
- 1958-04-27T07:00:35.000ZSputnik 8A91 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.