1. SETI Institute, 189 N. Bernardo Ave, Suite 200, Mountain View, CA 94043, USA
2. SOFIA Science Center, NASA Ames Research Center, MS 232, Moffett Field, CA 94035, USA
3. School of Physics and Astronomy, Cardiff University, Queens Buildings, The Parade, Cardiff CF24 3AA, UK
4. Paris-Saclay University, Irfu/AIM, CEA, Université Paris-Saclay, F-9119 Gif-sur Yvette, France
5. Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91104, USA
6. Department of Physics and Astronomy, University of Western Ontario, London, ON, N6A 3K7, Canada