When flying in orbit, four satellites form a formation. The main satellite is in the center of the formation, and the three auxiliary satellites orbit the main satellite in the same elliptical trajectory. The main satellite sends detection signals to the ground, and the "PIESAT-01" SAR satellite constellation receives the echo signals synchronously.

It can realize all-day, all-weather, high-resolution, wide-format SAR imaging on a global scale (resolution up to 0.5m in single- star spotlight mode, and up to 80km in multi-satellite stitching imaging mode), and high-precision, high-efficiency, large-scale terrain measurement.

It can complete the global land-scale mapping task (between 82.5° north and south latitude, superior to 1:50,000 scale) within one year, and has high-precision deformation measurement capabilities. In this way, surface deformation monitoring data with an accuracy of 3mm~5mm per year can be obtained.

Two categories of standard and thematic products, including seven levels of data products from L0 to L6, with broad business application prospects and extremely high application values in natural resources, emergency, municipal transportation, environmental energy, marine, water body, and other industries, which can significantly fill the gap in the domestic InSAR satellite application market.