1. Institute of Space and Astronautical Science, JAXA; Sagamihara Japan
2. Space Research Institute; Austrian Academy of Science; Graz Austria
3. Swedish Institute of Space Physics; Uppsala Sweden
4. Thayer School of Engineering; Dartmouth College; Hanover New Hampshire USA
5. Blackett Laboratory; Imperial College; London UK
6. Centre d'Etude Spatiale des Rayonnements; Toulouse France
7. Centre d'Etude des Environnements Terrestre et Planetaires, IPSL, CNRS; Velizy France