AI-enabled agile EO satellite — 0.5 m panchromatic, 23.5 km swath, 2 million km²/day capacity, stereo RMSE < 7.5 m (no GCP), launched June 2021.
BJ3A Satellite
AI-enabled agile EO satellite — 0.5 m panchromatic, 23.5 km swath, 2 million km²/day capacity, stereo RMSE < 7.5 m (no GCP), launched June 2021.
Description
BJ3A is an AI-enabled agile remote sensing optical satellite launched June 11, 2021, operating at 500 km altitude in a sun-synchronous orbit. It delivers 0.5 m panchromatic and 2 m multispectral imagery with a 23.5 km swath. The satellite features autonomous flight path selection capable of monitoring 500 global points of interest with ~100 passes per day, and supports a daily acquisition capacity of 2 million km². Stereo collection achieves RMSE < 7.5 m without ground control points, supporting high-accuracy 3D mapping.
Specifications
| Panchromatic GSD | 0.5 m |
|---|---|
| Multispectral GSD | 2 m |
| Swath width | 23.5 km |
| Altitude | 500 km |
| Revisit time | 4 days at 40°N |
| Daily acquisition | 2 million km² |
| Stereo accuracy (no GCP) | RMSE < 7.5 m |
| Dynamic range | 12 bit |
| Launch date | June 11, 2021 |
