1. Tohoku Univ. (Japan)
2. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)
3. Japan Aerospace Exploration Agency (Japan)
4. Tokyo Metropolitan Univ. (Japan)
5. Kanazawa Univ. (Japan)
6. Institute of SInstitute of Space and Astronautical Science, Japan Aeropace and Astronautical Science (Japan)
7. Nagoya Univ. (Japan)
8. Sumitomo Heavy Industries, Ltd. (Japan)
9. NASA Goddard Space Flight Ctr. (United States)