Spacecraft information: EXPLORER 41
| Launched | 20 June 1969 |
| Flight ended | 22 December 1972 |
| Status | Decayed |
| Launch site | Air Force Western Test Range, California, USA |
| Owner | United States |
| NORAD ID | 3990 |
| COSPAR ID | 1969-053A |
| Alternative names |
IMP-5 |
| Observing |
Launched alongside
DELTA 1 R/B