OBJECT B

OBJECT B is an active satellite operated by Changguang WJ (China), launched on 2022-08-10 from Taiyuan Satellite Launch Center, China on the Jilin-1 launch. Independent catalogue analysis identifies this object as Jilin-1 GaoFen 03D-09, attributed to Chang Guang. It orbits in Low Earth Orbit (LEO) at altitudes between 246 km and 254 km with an inclination of 97.6°. It travels at approximately 27,932 km/h (7.76 km/s), completing one full orbit every 90 minutes — that’s roughly 16.11 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. 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 weeks to months. Orbital Radar tracks OBJECT B in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.

OBJECT B orbits at an average altitude of 250 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 OBJECT B’s average altitude, there are currently 85 active payloads and 6 tracked debris or rocket body fragments — notable neighbours include STARLINK-1048, STARLINK-1114, STARLINK-1080. This is a relatively sparse altitude band, containing less than 1% of all active satellites. With an inclination of 97.6°, OBJECT B passes over latitudes between 97.6°N and 97.6°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 1,650 active satellites in total, of which 6 share a similar altitude band with OBJECT B.