Norad ID: 21227
| Nazwa w katalogu Spacetrack | SPACENET 4 (ASC 2) |
| Wyniesienie na orbitę |
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| Deorbitacja |
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| Kraj/organizacja pochodzenia | USA (US) |
| Miejsce startu | AFETR (Kennedy Space Center/Cape Canaveral, USA) |
| Perygeum | 35953 km |
| Apogeum | 36019 km |
SPACENET 4 (ASC 2), 21227 is a payload satellite owned by Contel (US) in GEO that was launched on Sat, 13 Apr 1991 UTC via a DELTA 7925 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.
Satelitę SPACENET 4 (ASC 2) wyniesiono 13.04.1991r.