ESRO-2
| Launched | 16 May 1968 |
| Flight ended | 7 May 1971 |
| Status | Decayed |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | European Space Research Organization |
| NORAD ID | 3233 |
| COSPAR ID | 1968-041A |
| Alternative names |
IRIS |
| Observing |