1. GATS Inc.; Boulder Colorado USA
2. Department of Aerospace Engineering Sciences; University of Colorado Boulder; Boulder Colorado USA
3. Space Science Division; Naval Research Laboratory; Washington District of Columbia USA
4. Department of Electronic and Electrical EngineeringUniversity of Bath; Bath UK
5. Leibniz Institute of Atmospheric Physics; University of Rostock; Kühlungsborn Germany
6. Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA