1. Space Research Institute, Austrian Academy of Sciences, Graz, Austria.
2. University of Bordeaux 1, Bordeaux, France.
3. Service d'Aéronomie, Pôle de Planétologie (IPSL/CNRS), Paris, France.
4. DLR, Institute of Planetary Research, Berlin, Germany.
5. Netherlands Institute for Radio Astronomy, Dwingeloo, the Netherlands.
6. Polar Geophysical Institute, Russian Academy of Sciences, Murmansk, Russian Federation.
7. Institute of Computational Modelling, Russian Academy of Sciences, Krasnoyarsk, Russian Federation.
8. Centre National de la Recherche Scientifique, Service d'Aéronomie, Verrières Le Buisson, France.
9. Finnish Meteorological Institute, Helsinki, Finland.
10. Swedish Institute of Space Physics (IRF), Kiruna, Sweden.
11. Centre National de la Recherche Scientifique, Centre de Biophysique Moléculaire, Orléans, France.
12. Department of Physics, University of Graz, Graz, Austria.
13. NASA ExoPlanet Science Institute, California Institute of Technology/JPL, USA.
14. Goddard Space Flight Center, Greenbelt, Maryland, USA.
15. Universidad Autonoma de Madrid, Madrid, Spain.
16. Research and Scientific Support Department, ESA, European Space Research and Technology Centre, Noordwijk, the Netherlands.
17. Max-Planck Institut für Astronomie, Heidelberg, Germany.
18. Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts, USA.
19. Université Paris-Sud, Orsay, France.
20. Department of Radio and Space Science, Chalmers University of Technology, Onsala, Sweden.
21. Lunar and Planetary Laboratory, Tucson, Arizona, USA.
22. Institut für Theoretische Physik, Technische Universität Braunschweig, Braunschweig, Germany.
23. Istituto Nazionale di Astrofisica, Rome, Italy.
24. Department of Geology and Petroleum Geology, University of Aberdeen, Aberdeen, UK.
25. Space Science & Technology Department, CCLRC Rutherford Appleton Laboratory, Oxfordshire, UK.
26. Landessternwarte, Heidelberg, Germany.
27. Leiden Observatory, Leiden, the Netherlands.
28. Observatoire de Paris-Meudon, Laboratoire de l'Univers et ses Théories, Meudon, France.
29. SRON, Netherlands Institute for Space Research, Utrecht, the Netherlands.
30. Department of Physics and Astronomy, University College London, London, UK.
31. The Open University, Milton Keynes, UK.