Acknowledgements
M. Merusi is supported by the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 801199. Support from the Carlsberg Foundation, grant CF16-0981, CF17-0979, and CF19-0023 are gratefully acknowledged. This support made it possible to build the cal-targets and to allow Danish team members to participate in a number of team meetings. J. R. Johnson is supported by ASU Contract 151112, 15-707. E. A. Cloutis thanks the Canadian Space Agency, the Natural Sciences and Engineering Research Council of Canada, and the University of Winnipeg for their funding support. M. T. Lemmon is supported by contract 15-712 from Arizona State University and 1607215 from Caltech-JPL. O. Gasnault’s work with SuperCam on Perseverance was supported by CNES.