TJS-27A

TJS-27A is an active satellite operated by China, launched on 2026-07-30 from Taiyuan, China. As a relatively recent addition to the catalogue, its orbital elements are well-characterised. It orbits in Low Earth Orbit (LEO) at altitudes between 1,148 km and 1,158 km with an inclination of 64.8°. It travels at approximately 26,203 km/h (7.28 km/s), completing one full orbit every 108 minutes — that’s roughly 13.28 orbits per day. Its near-circular orbit (eccentricity close to zero) means it maintains a very consistent altitude throughout each revolution. At its current altitude, the estimated orbital lifetime before atmospheric re-entry is ~500–1,000 years. Orbital Radar tracks TJS-27A in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.

TJS-27A orbits at an average altitude of 1,153 km in the upper LEO band, where atmospheric drag is negligible and objects can persist for centuries to millennia. This altitude is used by broadband constellations like OneWeb and by scientific missions requiring stable orbits far from the densest debris bands. Within ±50 km of TJS-27A’s average altitude, there are currently 577 active payloads and 302 tracked debris or rocket body fragments — notable neighbours include ONEWEB-0012, ONEWEB-0010, ONEWEB-0008. With an inclination of 64.8°, TJS-27A passes over latitudes between 64.8°N and 64.8°S, covering most populated land masses in both hemispheres. This mid-inclination band balances global coverage with efficient launch energy requirements. China operates approximately 1,249 active satellites in total, of which 187 share a similar altitude band with TJS-27A.