BJ 3A Satellite Imagery
Beijing 3A, developed by Aerospace Dongfanghong for 21AT, is an advanced optical satellite for remote sensing. Utilizing cutting-edge technology such as ultra-high agility, stability, and precision, as well as autonomous mission planning and in-orbit image processing, Beijing 3A achieves intelligent systems and continuous imaging on its own. Beijing 3A is equipped with two imagers: a full-color imager with a resolution of 0.5 m and a multispectral imager with a resolution of 2.0 m.
Beijing 3A Specifications | |
Orbit | SSO (Sun-synchronous Orbit) Altitude 500km LTAN 11:00 local time Inclination: 97.0° Altitude: 500 km |
Launch Date | June 11, 2021 |
Spectrum bands (in nm) | Panchromatic – 450 to 700 Blue – 450 to 520 Green – 520 to 590 Red – 630 to 690 NIR – 770 to 890 |
Resolution GSD | 0.5m panchromatic 2m multispectral at nadir |
Precision | Better than 1:10000 map scale |
Dynamic range | 12 bits |
Swath width | 23.5 km (at nadir)r) |
Revisit | 4 day (at 40°N) |