1. Space Research Institute; Moscow Russia
2. LATMOS/IPSL, CNRS-UPMC-UVSQ; Paris France
3. Goddard Space Flight Center; NASA; College Park Maryland USA
4. University of Maryland at NASA/Goddard Space Flight; Greenbelt Maryland USA
5. LPP, CNRS-Ecole Polytechnique; Paris France
6. Astron Electronics; Orel Russia
7. Space Research Institute, Austrian Academy of Sciences; Graz Austria
8. Southwest Research Institute; San Antonio Texas USA
9. Princeton University; Princeton New Jersey USA