ARIEL 2
| Launched | 26 March 1964 |
| Flight ended | 17 November 1967 |
| Status | Decayed |
| Launch site | Wallops Island, Virginia, USA |
| Owner | United Kingdom |
| NORAD ID | 771 |
| COSPAR ID | 1964-015A |
| Alternative names |
UK-2 |
| Observing |