1. Belgian Institute for Space Aeronomy; Brussels Belgium
2. Institute of Atmospheric Physics; Chinese Academy of Sciences; Beijing China
3. Spectroscopie de l'Atmosphère, Service de Chimie Quantique et Photophysique; Université Libre de Bruxelles; Brussels Belgium
4. Earth System Science Interdisciplinary Center; University of Maryland; College Park Maryland USA
5. NASA Goddard Space Flight Center; Greenbelt Maryland USA