HISEA-1: The First C-Band SAR Miniaturized Satellite for Ocean and Coastal Observation

On 22 December 2020, HISEA-1, the first C-band SAR small satellite for ocean remote sensing, was launched from coastal Wenchang launch site. Though in weight, images it produced have a high spatial resolution of 1 m and large observation width 100 km. The batch obtained within week after confirmed rich information data, including sea ice, wind, wave, rip currents, vortexes, ships, oil film on sea, as well landmark buildings. Furthermore, geometric characteristics wind vector, wave parameter, 3D features buildings, some air-sea interface phenomena dark spots could also be detected relevant processing. All these indicate that HISEA-1 reliable, remarkable, powerful instrument observing oceans lands.