The Juno I was a four-stage American booster rocket which launched America's first satellite, Explorer 1 in 1958. A member of thr redstone family, it was derived from the Jupiter-C sounding rocket.
Specifications
- Thrust
- 416 kN
- Height
- 21.2 m
- Diameter
- 1.78 m
- Launch mass
- 29 t
- Stages
- 4
- Launch cost
- —
- LEO capacity
- 11 kg
- GTO capacity
- —
- GEO capacity
- —
- SSO capacity
- —
Vehicle specifications from Launch Library; blanks are unpublished figures.
Flight record
Flights
6
Launches with a definitive outcome
Success rate
50%
3 of 6
Current success streak
0
Landings
0
0 attempts · 0 droneship / 0 RTLS
Fastest turnaround
—
Between consecutive booster flights
Counted from padside's own launch record — the same basis as the Stats page.
Launches
- Juno-I | Beacon — Failure
- Juno-I | Explorer 5 — Failure
- Juno-I | Explorer 4 — Success
- Juno-I | Explorer 3 — Success
- Juno-I | Explorer 2 — Failure