1. Physikalisches Institut; University of Bern; Bern Switzerland
2. Institute of Computer and Network Engineering; TU Braunschweig; Braunschweig Germany
3. AOSS; University of Michigan; Ann Arbor Michigan USA
4. Space Physics Department; Lockheed Martin Advanced Technology Center; Palo Alto California USA
5. LATMOS; Saint-Maur France
6. Space Physics Division; BIRA-IASB; Brussels Belgium
7. UPS, CESR; University of Toulouse; Toulouse France
8. CNRS, UMR 5187; Toulouse France
9. Max-Planck-Institut für Sonnensystemforschung; Katlenburg-Lindau Germany