Norad ID: 21227
| Spacetrack Directory Name | SPACENET 4 (ASC 2) |
| Orbit launches |
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| Deorbitation |
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| Country/organisation of origin | USA (US) |
| Starting point | AFETR (Kennedy Space Center/Cape Canaveral, USA) |
| Perigee | 35953 km |
| Apogee | 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.
satellite SPACENET 4 (ASC 2) Date of exalting 13.04.1991y.