Corresponding Author

E-mail address: annaurso@pirl.lpl.arizona.edu

http://orcid.org/0000-0002-2251-0226

Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA

Correspondence to: A. Urso,

E-mail address: annaurso@pirl.lpl.arizona.edu

http://orcid.org/0000-0001-8497-8994

Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA

http://orcid.org/0000-0002-3583-2267

INAF, Istituto Nazionale di Astrofisica, Osservatorio Astronomico di Teramo, Teramo, Italy

Centre for Earth and Space Research of the University of Coimbra, Observatório Geofísico e Astronómico da Universidade de Coimbra, Coimbra, Portugal