BJ3A & BJ3 Constellation Satellite Capabilities
AI-Powered Agile Optical Constellation for High-Resolution Remote Sensing
About the BJ3A Satellite and BJ3 Constellation
Launched on 11 June 2021, the BJ3A is an AI-powered, agile optical Earth observation satellite operated by 21AT. In May 2024,nearly three years later, 21AT expanded its capability by launching four additional satellites to form the BJ3 constellation. Together, these satellites provide an integrated, high-frequency imaging system built to meet growing global demand for high-resolution remote sensing data.
The BJ3 constellation combines autonomous decision-making and agile maneuverability. Each satellite can independently determine its optimal flight path and monitor up to 500 global points of interest, completing approximately 100 imaging trips per day. This enables rapid revisit rates, enhanced responsiveness, and reliable access to high-quality Earth observation imagery.
Frequent Revisits with Full Constellation
Up to 4 revisits per day at 40°N, supporting timely observations and rapid-change monitoring.
Key Features and Benefits of the BJ3A & BJ3 Constellation
- Provides high-resolution multispectral imagery suitable for detailed analysis across environmental, urban, and commercial applications.
- Achieves stereo accuracy RMSE below 7.5 m without Ground Control Points (GCP), enabling precise 3D mapping and topographic modelling.
- Offers multi-directional targeting for flexible and responsive tasking across diverse areas of interest.
- Delivers high collection capacity across multiple imaging modes, supporting large-area and high-frequency data acquisition.
