Norad ID: 19687
| Spacetrack Directory Name | SKYNET 4B |
| Orbit launches |
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| Deorbitation |
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| Country/organisation of origin | Anglia (UK) |
| Starting point | FRGUI (Guiana Space Centre, French Guiana) |
| Perigee | 35932 km |
| Apogee | 35975 km |
SKYNET 4B, 19687 is a payload satellite owned by UK MoD (UK) in GEO that was launched on Sun, 11 Dec 1988 UTC via an ARIANE 44LP launch vehicle from the French Guiana (FRGUI). 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 SKYNET 4B Date of exalting 11.12.1988y.