1. SETI Institute, Mountain View CA, USA.
2. NASA Ames Research Center, Moffett Field CA, USA.
3. Southwest Research Institute, Boulder CO, USA.
4. Department of Earth and Planetary Sciences and the McDonnell Center for the Space Sciences, Washington University, St. Louis, MO, USA.
5. Pinhead Institute, Telluride CO, USA.
6. Lowell Observatory, Flagstaff AZ, USA.
7. Université Grenoble Alpes, CNRS, IPAG, F-38000 Grenoble, France.
8. Johns Hopkins University Applied Physics Laboratory, Laurel MD, USA.
9. University of Virginia, Charlottesville, VA, USA.