1. Resonon Inc., Bozeman, Montana, United States
2. NASA Langley Research Center, Hampton, Virginia, United States
3. Quartus Engineering, San Diego, California, United States
4. Blue Canyon Technologies LLC, Boulder, Colorado, United States
5. University of Colorado, Laboratory for Atmospheric and Space Physics, Boulder, Colorado, United States
6. United States Geological Survey, Flagstaff, Arizona, United States