1. Unidad Asociada UVa-CSIC al Centro de Astobiología, University of Valladolid, Valladolid, Spain.
2. IRAP, University Paul Sabatier—CNRS—Obs. Midi-Pyrénées, Toulouse, France.
3. Department of Physics and Astronomy, Space Research Centre, University of Leicester, Leicester, United Kingdom.
4. Instituto Nacional de Técnica Aeroespacial (INTA), Madrid, Spain.
5. Rutherford Appleton Laboratory Space, Didcot, United Kingdom.
6. Institute of Physical Chemistry, Friedrich-Schiller University, Jena, Germany.
7. ESA-ESTEC, Noordwijk, the Netherlands.