JUNO II R/B
| Launched | 12 October 1959 |
| Flight ended | 15 July 1989 |
| Status | Decayed |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 23 |
| COSPAR ID | 1959-009B |
| Observing |
Launched alongside
EXPLORER 7JUNO II R/B
| Launched | 12 October 1959 |
| Flight ended | 15 July 1989 |
| Status | Decayed |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 23 |
| COSPAR ID | 1959-009B |
| Observing |
Launched alongside
EXPLORER 7