HYLAS-4
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| Operator | Avanti Communications[1] |
|---|---|
| COSPAR ID | 2018-033B |
| SATCAT no. | 43272 |
| Mission duration | 15 years[1] |
| Spacecraft properties | |
| Bus | Star-3 Bus |
| Manufacturer | Orbital ATK[2] |
| Launch mass | 4,000 kg |
| Start of mission | |
| Launch date | 5 April 2018, 21:34 UTC[2] |
| Rocket | Ariane 5 flight VA242[2] |
| Launch site | ELA-3, Guiana Space Centre[2] |
| Contractor | Arianespace[1] |
| Orbital parameters | |
| Eccentricity | circular[3] |
| Periapsis altitude | 35,786 km[3] |
| Apoapsis altitude | 35,786 km[3] |
| Period | 23h 56min[4] |
| Transponders | |
| Band | Ka-band[1] |
| Capacity | up to 28 GHz[1] |
HYLAS-4 is a telecommunications satellite owned and operated by Avanti Communications and manufactured by Orbital ATK (now Northrop Grumman Innovation Systems) that was launched by an Ariane 5 rocket on 5 April 2018.[2]