Acknowledgments
This work was funded by CNES, the Agence Nationale de la Recherche (ANR, PRCI, CE31 AAPG2019, MCUBE project), and background for this project was funded by the European Union’s Horizon 2020 Programme under grant agreement UPWARDS-633127. The SPICAM instrument was developed by the Laboratoire Atmospheres, Milieux, Observations Spatiales (LATMOS) in Guyancourt, and the Space Research Institute (IKI) in Moscow. The instrument development was funded by the National Centre for Space Studies of France (CNES), Roscosmos, and RSF (Russian Science Foundation 20-42-0903). The PFS experiment has been built at the “Istituto di Astrofisica e Planetologia Spaziali” (IAPS) of the “Istituto Nazionale di Astrofisica” (INAF) and is currently funded by the Italian Space Agency (ASI) in the context of the Italian participation to the ESA’s Mars Express Mission (grant ASI/INAF n. 2018-2-HH.0).