1. LPAP STAR Institute Université de Liège Belgium
2. Royal Belgian Institute for Space Aeronomy Brussels Belgium
3. NASA/Ames Research Center Moffet Field Mountain view CA USA
4. School of Physical Sciences The Open University Milton Keynes UK
5. Instituto de Astrofìsica de Andalucía/CSIC Granada Spain
6. Istituto di Astrofisica e Planetologia Spaziali INAF Rome Italy