Juno-I | Explorer 1
Juno-I | Explorer 1 rode a Juno-I into space from Cape Canaveral SFS, FL, USA, deploying its payload to LEO.
- Launch time
- Status
- SUCCESS
- Operator
- Army Ballistic Missile Agency
- Mission type
- Test Flight
- Rocket
- Juno-I
- Launch site
- Cape Canaveral SFS, FL, USA
- Launch pad
- Launch Complex 26A
- Payload
- —
- Target orbit
- LEO

Mission timeline
- 1958-02-01T03:47:56.000ZJuno-I roars off the pad at Cape Canaveral SFS, FL, USA.
- 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 LEO.
- All mission objectives achieved.