EXPLORER 54
| Launched | 5 October 1975 |
| Flight ended | 11 March 1976 |
| Status | Decayed |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 8353 |
| COSPAR ID | 1975-096A |
| Alternative names |
AE-D |
| Observing |
Launched alongside
DELTA 1 R/B