Introduction - If you have any usage issues, please Google them yourself
The number 1 (Sentinel-1) is the European Space Agency satellite Copernicus plan (GMES) in earth observation satellite, which is composed of two satellites, a C band synthetic aperture radar, can provide continuous images (daytime, night and all weather). In March 12, 2010, the European Space Agency and the Italy Thales Alenia space company (Thales Alenia Space) signed a contract worth 270 million euros to build a binary system for sentinel No. 1.