FSSCat: The Federated Satellite Systems 3Cat Mission: Demonstrating the capabilities of CubeSats to monitor essential climate variables of the water cycle [Instruments and Missions]

Adriano Camps, Joan Francesc Munoz-Martin, Joan Adria Ruiz-De-Azua, Lara Fernandez, Adrian Perez-Portero, David Llaveria, Christoph Herbert, Miriam Pablos, Alessandro Golkar, Antonio Gutierrez, Carlos Antonio, Jorge Bandeiras, Jorge Andrade, David Cordeiro, Simone Briatore, Nicola Garzaniti, Fabio Nichele, Raffaele Mozzillo, Alessio Piumatti, Margherita CardiMarco Esposito, Chris Van Dijk, Nathan Vercruyssen, Joao Barbosa, John Hefele, Rick Koeleman, Bernardo Carnicero Dominguez, Massimiliano Pastena, Giancarlo Filippazzo, Amanda Reagan

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

The Federated Satellite Systems/3Cat-5 (FSSCat) mission was the winner of the European Space Agency (ESA) Sentinel Small Satellite (S3) Challenge and overall winner of the 2017 Copernicus Masters competition. It consisted of two six-unit CubeSats. The Earth observation payloads were 1) the Flexible Microwave Payload 2 (FMPL-2) onboard 3Cat-5/A, an L-band microwave radiometer and GNSS reflectometer (GNSS-R) implemented using a software-defined radio (SDR), and 2) the HyperScout-2 onboard 3Cat-5/B, a hyperspectral camera, with the first experiment using artificial intelligence to discard cloudy images. FSSCat was launched on 3 September 2020 and injected into a 535-km synchronous orbit. 3Cat-5/A was operated for three months until the payload was probably damaged by a solar flare and coronal mass ejection. During this time, all scientific requirements were met, including the generation of coarse-resolution and downscaled soil moisture (SM) maps, sea ice extent (SIE) maps, concentration and thickness maps, and even wind speed (WS) and sea surface salinity (SSS) maps, which were not originally foreseen. 3Cat-5/B was operated a few more months until the number of images acquired met the requirements. This article briefly describes the FSSCat mission and the FMPL-2 payload and summarizes the main scientific results.

Original languageEnglish
Pages (from-to)260-269
Number of pages10
JournalIEEE Geoscience and Remote Sensing Magazine
Volume10
Issue number4
DOIs
StatePublished - 1 Dec 2022

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