[1] IRAP CNRS, 9 Av Colonel Roche,BP 44346, F-31028 Toulouse 4, France
[2] Univ Toulouse III Paul Sabatier, OMP, Toulouse, France
[3] Ctr Spatial Toulouse, Ctr Natl Etud Spatiales, 18 Ave Edouard Belin, F-31401 Toulouse 9, France
[4] SRON Netherlands Inst Space Res, SRON, Sorbonnelaan 2, NL-3584 CA Utrecht, Netherlands
[5] INAF Ist Astrofis & Planetol Spaziali, Via Fosso Cavaliere 100, I-00133 Rome, Italy
[6] Inst Fis Cantabria CSIC UC, E-39005 Santander, Cantabria, Spain
[7] Univ Helsinki, Div Geophys & Astron, Dept Phys, POB 48, FI-00014 Helsinki, Finland
[8] NASA, Goddard Space Flight Ctr, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA
[9] CSIC INTA, Ctr Astrobiol, Ctra Torrejon Ajalvir,4 Km, Madrid 28850, Spain
[10] ISAS, Chuo Ku, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 2525210, Japan
[11] Japan Aerosp Explorat Agcy JAXA, Chuo Ku, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 2525210, Japan
[12] Univ Geneva, Dept Astron, Chemin Ecogia 16, CH-1290 Versoix, Switzerland
[13] Univ Liege, Inst Astrophys & Geophys, Allee 6 Aout 19c, B-4000 Liege, Belgium
[14] Polish Acad Sci, Nicolaus Copernicus Astron Ctr, Ul Bartycka 18, PL-00716 Warsaw, Poland
[15] Univ Erlangen Nurnberg, ECAP, Sternwartstr 7, D-96049 Bamberg, Germany
[16] Univ Palermo, Dipartimento Fis & Chim, Via Archirafi 36, I-90123 Palermo, Italy
[17] INAF, Osservatorio Astron Palermo GS Vaiana, Piazza Parlamento 1, I-90134 Palermo, Italy
[18] Univ Grenoble Alpes, CEA INAC SBT, F-38000 Grenoble, France
[19] Univ Paris Diderot, CNRS, CEA, Lab AIM,UMR 7158,CEA DRF,IRFU,SAp, F-91191 Gif Sur Yvette, France
[20] INAF, Osservatorio Astron Roma, Via Frascati 33, I-00078 Monte Porzio Catone, Italy
[21] Univ Genoa, Dept Phys, Via Dodecaneso 33, I-16146 Genoa, Italy
[22] Univ Paris Diderot, APC Astroparticule & Cosmol, 10 Rue A Domon & L Duquet, F-75205 Paris 13, France
[23] CEA Saclay, Serv Astrophys, IRFU, DRF, F-91191 Gif Sur Yvette, France
[24] Univ Groningen, Landleven 12, NL-9747 AD Groningen, Netherlands
[25] INAF IASF Milano, Via E Bassini 15, I-20133 Milan, Italy
[26] Polish Acad Sci, Ctr Badan Kosmicznych, Bartycka 18a, PL-00716 Warsaw, Poland
[27] CSL, Ave PreaiIly B29, B-4031 Liege, Belgium
[28] Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands
[29] Japan Aerosp Explorat Agcy, Res Unit U2 2, Res & Dev Directorate, 2-11 Sengen, Tsukuba, Ibaraki 3058505, Japan
[30] INAF IASF Ist Astrofis Spaziale & Fis Cosm, Area Ric, Via Piero Gobetti 101, I-40129 Bologna, Italy
[31] Univ Amsterdam, Anton Pannekoek Inst, GRAPPA, POB 94249, NL-1090 GE Amsterdam, Netherlands
[32] Univ Coll London, Mullard Space Sci Lab, Surrey RH5 6NT, England
[33] Hiroshima Univ, High Energy Astrophys Grp, Dept Phys Sci, 1-3-1 Kagamiyama, Hiroshima 7398526, Japan
[34] Polish Acad Sci, Ctr Theoret Phys, Al Lotnikow 32-46, PL-02668 Warsaw, Poland
[35] Univ Michigan, Dept Astron, 1085 South Univ Ave, Ann Arbor, MI 48109 USA
[36] Univ Alicante, IUFACyT, Campus San Vicente del Raspeig, E-03690 Alicante, Spain