BJ3 Constellation

The BJ3 constellation is five AI-enabled agile remote sensing optical satellites capable of monitoring up to 500 points of interest across the world with roughly 100 trips every day.

About

Launched on June 11, 2021, the BJ3A is an AI-powered agile remote sensing optical satellite operated by 21AT. Almost 3 years later in May 2024, 21AT launched 4 additional satellites to create the BJ3 constellation. Each satellite can autonomously determine its flight path and can monitor up to 500 points of interest worldwide with approximately 100 trips daily. These satellites deliver high-resolution remote sensing data and information products to meet global market demands.

Features and Benefits

Delivers high-resolution images using its multispectral camera.
Stereo accuracy root mean square error (RMSE) less than 7.5m without Ground Control Point (GCP)
Multi directional targeting
High capacity in various collection mode

Frequent revisits with full constellation

Up to 4 revisits per day at 40°N

Sample Images

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Provider
21AT
Satellites
5
Resolution
0.5m panchromatic 2m multispectral at Nadir
Band
Panchromatic: 450 - 700nm Blue - 450 to 520 nm Green - 520 to 590 nm Red - 630 to 690 nm NIR - 770 to 890 nm
Swath Width
23.5km nadir
Stereo available
Yes
Altitude
500km