EXPLORER 4
Satellite information EXPLORER 4 - Explorer IV
| Spacetrack Directory Name | EXPLORER 4 |
| Alternative name | Explorer IV |
| 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) |
Additional information EXPLORER 4
EXPLORER 4, 9 was an American payload satellite that was launched on Sat, 26 Jul 1958 UTC via a JUPITER C launch vehicle from the Air Force Eastern Test Range (AFETR). Payloads include a variety of satellites, spacecraft, and rockets equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.
Update time: 2026-04-19 15:00:10
