ST 2

ST 2 is an active satellite operated by Singapore Telecommunications Ltd. (SingTel)/Chunghwa Telecom Co. Ltd. (Singapore Telecommunications), launched on 2011-05-20 from Guiana Space Centre, Kourou on the INSAT-4G launch. After 15 years in orbit, it continues to be tracked by global surveillance networks. It orbits in Geostationary Orbit (GEO) at altitudes between 35,779 km and 35,793 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 ST 2 in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.

ST 2 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 ST 2’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. Singapore Telecommunications operates approximately 2 active satellites in total.