EXPLORER 4
Satellite information EXPLORER 4
| Spacetrack Directory Name | EXPLORER 4 |
| Orbit launches |
1958-07-26 |
| Deorbitation date |
1959-10-23 |
| Days in orbit | 454 |
| Country/organisation of origin | USA (US) |
| Starting point | AFETR (Kennedy Space Center/Cape Canaveral, USA) |
