Fsscat, the 2017 Copernicus Masters' "Esa Sentinel Small Satellite Challenge" Winner: A Federated Polar and Soil Moisture Tandem Mission Based on 6U Cubesats. - Adriano Camps; Alessandro Golkar; Antonio Gutierrez; Joan Adrià Ruiz-de-Azua; Joan Francesc Muñoz-Martín; Lara Fernández; Carlos Díez; Andrea Aguilella; Simone Briatore; Rustam Akhtyamov; Nicola Garzaniti (IGARSS, 2018)