Geoscience Australia, GPO Box 378, Canberra, ACT 2601, Australia
NASA Goddard Space Flight Center, Planetary Geodynamics Laboratory, Code698, Greenbelt, MD 20771, United States
IGN/LAREG, 6-8 Avenue Blaise Pascale, Champs sur Marne, 77455, France
Observatoire de la Côte d'Azur/GEMINI, Avenue Nicolas Copernic, Grasse, 06130, France ; Goddard Earth Science and Technology Center, UMBC, Baltimore, MD 21228, United States
SGT Inc., 7701 Greenbelt Road, Greenbelt, MD 20770, United States