ESA S^3 and Overall Winner of the 2017 Copernicus Masters Competition

FSSCat is an innovative mission concept consisting of two federated 6U Cubesats carrying a dual microwave payload (a GNSS-Reflectometer and a L-band radiometer with RFI detection/mitigation), and am hyperspectral optical payload to measure soil moisture, ice extent, and ice thickness, and to detect melting ponds over ice. It also includes a radio/optical inter-satellite links test techniques for satellite federations. FSSCat can be the precursor of a constellation of federated small satellites for Earth observation achieving high temporal resolution and moderate spatial resolution in a cost-effective manner.