Sentinel-1 First Generation: mission status and data quality

Abstract:
Sentinel-1 (S-1) mission is co-funded by the European Space Agency (ESA) and the European Commission (EC) as part of the Copernicus space program. The mission is currently operating with a single C-band SAR satellites (S-1A), launched in 2014. S-1B was launched in 2016 and is now being disposed after an unrecoverable failure in December 2021. S-1 products are freely available through the Copernicus Data Space Ecosystem and their quality are routinely monitored by the SAR Mission Performance Cluster. This paper provides status of key aspects of mission, L1 and L2 products and quality control.