Taijing-4/02A satellite is a high-resolution flat-panel SAR satellite with submeter image resolution and a maximum imaging swath exceeding 240km. It supports multiple imaging modes including spotlight, sliding spotlight, stripmap, TOPS, and scan modes. By leveraging the high-resolution imaging capabilities of synthetic aperture radar and the agile maneuverability of microsatellites, the satellite effectively addresses the challenge of achieving both high clarity and wide coverage in Earth observation.