HYLAS 4

HYLAS 4 is an active satellite operated by Avanti Communications, PLC (United Kingdom), launched on 2018-04-05 from Guiana Space Centre, Kourou. It orbits in Geostationary Orbit (GEO) at altitudes between 35,779 km and 35,790 km with an inclination of 0.0°. It travels at approximately 11,070 km/h (3.07 km/s), completing one full orbit every ~24 hours (geosynchronous) — that’s roughly 1.00 orbits per day. At geostationary altitude, there is no meaningful atmospheric drag — this object will remain in orbit indefinitely unless actively deorbited. Orbital Radar tracks HYLAS 4 in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.

HYLAS 4 occupies geostationary orbit at approximately 35,786 km above the equator, where its orbital period matches the Earth’s 24-hour rotation. From the ground, it appears to hover over a fixed point — ideal for broadcast television, weather monitoring and wideband communications. Within ±50 km of HYLAS 4’s average altitude, there are currently 712 active payloads and 59 tracked debris or rocket body fragments — notable neighbours include ASTRA 1N, GOES 16, TDRS 13. United Kingdom operates approximately 720 active satellites in total, of which 13 share a similar altitude band with HYLAS 4.