1. Space Science Institute; Boulder Colorado USA
2. Goddard Space Flight Center; Greenbelt Maryland USA
3. Laboratoire Atmosphères Milieux Observations Spatiales; Paris France
4. Laboratoire do Météorologie Dynamique; Paris France
5. Johns Hopkins University/Applied Physics Laboratory; Columbia Maryland USA
6. Jet Propulsion Laboratory; Pasadena California USA
7. Hampton University; Hampton Virginia USA