ASTRA 1H

ASTRA 1H is an active satellite operated by SES S.A. (SES), launched on 1999-06-18 from Baikonur, Kazakhstan. With over 27 years in orbit, it has far exceeded many satellites’ design lifetimes. It orbits in Geostationary Orbit (GEO) at altitudes between 36,126 km and 36,199 km with an inclination of 10.6°. It travels at approximately 11,021 km/h (3.06 km/s), completing one full orbit every 24.3 hours — that’s roughly 0.99 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 ASTRA 1H in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.

ASTRA 1H 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. With an inclination of 10.6°, it traces a small figure-of-eight pattern relative to the equator rather than remaining perfectly stationary, which can indicate aging stationkeeping fuel or a deliberate inclined-orbit strategy. Within ±50 km of ASTRA 1H’s average altitude, there are currently 156 active payloads and 9 tracked debris or rocket body fragments. SES operates approximately 77 active satellites in total, of which 20 share a similar altitude band with ASTRA 1H.