1. Mullard Space Science Laboratory University College London Dorking UK
2. The Centre for Planetary Sciences at UCL/Birkbeck London UK
3. Escuela Técnica Superior de Ingeniería ‐ ICAI Universidad Pontificia Comillas Madrid Spain
4. Swedish Institute of Space Physics (IRF) Uppsala Sweden
5. LESIA Observatoire de Paris Meudon France
6. Southwest Research Institute San Antonio TX USA