1. University of Colorado Boulder
2. NASA Goddard Space Flight Center
3. University of Houston
4. University of California Berkeley
5. Institutet for rymdfysik
6. University of Michigan College of Engineering
7. Laboratoire de Physique et Chimie de l'Environnement et de l'Espace
8. Oslo University
9. Koninklijk Belgisch Instituut voor Ruimte-Aeronomie
10. Uchu Koku Kenkyu Kaihatsu Kiko - Sagamihara Campus