1. DTU-Space; Technical University of Denmark; Kongens Lyngby Denmark
2. Dark Cosmology Centre, Niels Bohr Institute; University of Copenhagen; Copenhagen Denmark
3. Space Research Corporation; Annapolis Maryland USA
4. NASA Goddard Space Flight Center; Greenbelt Maryland USA
5. Southwest Research Institute; San Antonio Texas USA
6. Jet Propulsion Laboratory; Pasadena California USA