Spacecraft information: EXPLORER 33
| Launched | 30 June 1966 |
| Flight ended | – |
| Status | Unknown |
| Launch site | Air Force Eastern Test Range, Florida, USA |
| Owner | United States |
| NORAD ID | 2258 |
| COSPAR ID | 1966-058A |
| Alternative names |
AIMP-D |
| Observing |