JILIN-01 GAOFEN 2D

JILIN-01 GAOFEN 2D is an active satellite operated by Chang Guang Satellite Technology Co. Ltd. (China), launched on 2021-09-27 from Jiuquan, China. It orbits in Low Earth Orbit (LEO) at altitudes between 510 km and 558 km with an inclination of 97.7°. It travels at approximately 27,352 km/h (7.60 km/s), completing one full orbit every 95 minutes — that’s roughly 15.11 orbits per day. Its near-polar, sun-synchronous orbit means it passes over any given point on Earth at approximately the same local solar time, ideal for consistent Earth observation lighting conditions. At its current altitude, the estimated orbital lifetime before atmospheric re-entry is ~3–10 years. Orbital Radar tracks JILIN-01 GAOFEN 2D in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.

JILIN-01 GAOFEN 2D orbits at an average altitude of 534 km in a sun-synchronous orbit (SSO), a specialised subset of LEO where the orbital plane precesses to maintain a constant angle relative to the Sun. This provides consistent lighting conditions on every pass — essential for Earth observation, weather monitoring and environmental science. Within ±50 km of JILIN-01 GAOFEN 2D’s average altitude, there are currently 3,514 active payloads and 305 tracked debris or rocket body fragments — notable neighbours include STARLINK-1184, STARLINK-1276, STARLINK-1451. This makes it one of the more crowded altitude bands, containing roughly 20.2% of all active satellites. With an inclination of 97.7°, JILIN-01 GAOFEN 2D passes over latitudes between 97.7°N and 97.7°S, providing near-global coverage including the polar regions. Polar and near-polar orbits are used for reconnaissance, weather monitoring and Earth-observation missions that need to image every part of the planet. China operates approximately 1,218 active satellites in total, of which 209 share a similar altitude band with JILIN-01 GAOFEN 2D.