[1] Univ Aix Marseille 2, INSU CNRS, Ctr Oceanol Marseille, Marseille, France
[2] CEA Saclay, Dept Astrophys Phys Particules Phys Nucl & Instru, Gif Sur Yvette, France
[3] Univ Aix Marseille 2, IN2P3 CNRS, Ctr Phys Particules Marseille, Marseille, France
[4] Univ Valencia, CSIC, Inst Fis Corpuscular, E-46003 Valencia, Spain
[5] Univ Oxford, Dept Phys, Oxford OX1 2JD, England
[6] Univ Sheffield, Sheffield S10 2TN, S Yorkshire, England
[7] Univ Mulhouse, Mulhouse, France
[8] IFREMER, Nantes, France
[9] NIKHEF, Utrecht, Netherlands
[10] INSU CNRS, Inst Gassendi Rech Astron Provence, Marseille, France