Juno II
Jupiter familyArmy Ballistic Missile AgencyRetired
Juno II was an American space launch vehicle used during the late 1950s and early 1960s. It was derived from the Jupiter missile, which was used as the first stage.

Specifications
- Thrust
- 654 kN
- Height
- 24 m
- Diameter
- 2.67 m
- Launch mass
- 55 t
- Stages
- 4
- LEO capacity
- 41 kg
Specifications from Launch Library. Figures the operator has not published are omitted.
Flight record
10flightswith a definitive outcome
50%success rate5 of 10
5failuresincluding partial failures
0success streakcurrent
First flight December 6, 1958 · latest May 24, 1961
Counted from padside's own launch record, the same basis as the stats page.
Flights per year
- Successful
- Failed
Show the numbers for Juno II flights per year
| Year | Successful | Failed | Total |
|---|---|---|---|
| 1958 | 1 | 0 | 1 |
| 1959 | 2 | 2 | 4 |
| 1960 | 1 | 1 | 2 |
| 1961 | 1 | 2 | 3 |