1. Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA, CNRS UMR 7583); Université Paris Est Créteil, Université Paris Diderot, Institut Pierre-Simon Laplace; Créteil France
2. National Institute of Standards and Technology; Gaithersburg Maryland USA
3. National Institute of Metrology; Beijing China
4. Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
5. Department of Physics; College of William and Mary; Williamsburg Virginia USA
6. Institute of Environmental Physics; University of Bremen; Bremen Germany
7. DLR German Aerospace Center; Institute of Space Systems; Bremen Germany