TIANPING 3B-01

TIANPING 3B-01 is an active satellite operated by ZJUNI-SAT (China), launched on 2024-10-22 from Taiyuan Satellite Launch Center, China on the Tianping-3 launch. It orbits in Low Earth Orbit (LEO) at altitudes between 561 km and 566 km with an inclination of 97.5°. It travels at approximately 27,294 km/h (7.58 km/s), completing one full orbit every 96 minutes — that’s roughly 15.01 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 ~3–10 years. Orbital Radar tracks TIANPING 3B-01 in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.

TIANPING 3B-01 orbits at an average altitude of 564 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 TIANPING 3B-01’s average altitude, there are currently 1,483 active payloads and 497 tracked debris or rocket body fragments — notable neighbours include ONEWEB-0050, STARLINK-1522, STARLINK-2112. This makes it one of the more crowded altitude bands, containing roughly 7.9% of all active satellites. With an inclination of 97.5°, TIANPING 3B-01 passes over latitudes between 97.5°N and 97.5°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 1,275 active satellites in total, of which 133 share a similar altitude band with TIANPING 3B-01.