Norad ID: 20923
| Nazwa w katalogu Spacetrack | GORIZONT 21 |
| Wyniesienie na orbitę |
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| Deorbitacja |
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| Kraj/organizacja pochodzenia | Commonwealth of Independent States (former USSR) (CIS) |
| Miejsce startu | TYMSC (Baikonur Cosmodrome, Kazakhstan) |
| Kategorie | |
| Perygeum | 35797 km |
| Apogeum | 35813 km |
GORIZONT 21, 20923 is a payload satellite owned by MSvyaz (CIS) in GEO that was launched on Sat, 03 Nov 1990 UTC via a PROTON-K/DM-2 launch vehicle from the Tyuratam Missile And Space Complex (TTMTR). 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 GORIZONT 21 wyniesiono 03.11.1990r.