DISCOVERER 21
Satellite information DISCOVERER 21 - Discoverer 21
| Spacetrack Directory Name | DISCOVERER 21 |
| Alternative name | Discoverer 21 |
| Orbit launches |
1961-02-18 |
| Deorbitation date |
1962-04-20 |
| Days in orbit | 426 |
| Country/organisation of origin | USA (US) |
| Starting point | AFWTR (Vandenberg Air Force Base, USA) |
Additional information DISCOVERER 21
DISCOVERER 21, 84 was an American payload satellite that was launched on Sat, 18 Feb 1961 UTC via a THOR AGENA B launch vehicle from the Air Force Western Test Range (AFWTR). 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: 2026-04-29 19:00:14
