[1] Deutsch Elektronen Synchrotron DESY, D-15738 Zeuthen, Germany
[2] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA
[3] Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan
[4] Univ Calif Santa Cruz, Dept Phys, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA
[5] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA
[6] Stockholm Univ, Dept Astron, SE-10691 Stockholm, Sweden
[7] AlbaNova, Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden
[8] AlbaNova, Royal Inst Technol KTH, Dept Phys, SE-10691 Stockholm, Sweden
[9] Univ Pisa, I-56127 Pisa, Italy
[10] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy
[11] Univ Paris Diderot, CEA Saclay, Serv Astrophys, Lab AIM,CEA IRFU CNRS, F-91191 Gif Sur Yvette, France
[12] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy
[13] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy
[14] Rice Univ, Dept Phys & Astron, Houston, TX 77251 USA
[15] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy
[16] Univ Padua, Dipartimento Fis & Astron G Galilei, I-35131 Padua, Italy
[17] Kavli Inst Particle Astrophys & Cosmol, WW Hansen Expt Phys Lab, Dept Phys, Stanford, CA 94305 USA
[18] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA
[19] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy
[20] Univ Trieste, I-34127 Trieste, Italy
[21] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy
[22] Univ Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy
[23] Politecn Bari, I-70126 Bari, Italy
[24] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy
[25] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France
[26] Univ Alabama, Ctr Space Plasma & Aeronom Res, Huntsville, AL 35899 USA
[27] CSIC, Inst Ciencies Espai IEEE, Barcelona 08193, Spain
[28] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy
[29] George Mason Univ, Coll Sci, Ctr Earth Observing & Space Res, Fairfax, VA 22030 USA
[30] Naval Res Lab, Washington, DC 20375 USA
[31] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA
[32] Agenzia Spaziale Italiana Sci Data Ctr, I-00044 Rome, Italy
[33] Osserv Astron Roma, Ist Nazl Astrofis, I-00040 Rome, Italy
[34] Univ Space Res Assoc, Columbia, MD 21044 USA
[35] Univ Montpellier 2, CNRS, IN2P3, Lab Univers & Particules Montpellier, Montpellier, France
[36] NASA, Postdoctoral Program, Washington, DC USA
[37] Sonoma State Univ, Dept Phys & Astron, Rohnert Pk, CA 94928 USA
[38] Stockholm Univ, AlbaNova, Dept Phys, SE-10691 Stockholm, Sweden
[39] Royal Swedish Acad Sci, SE-10405 Stockholm, Sweden
[40] INAF Ist Radioastron, I-40129 Bologna, Italy
[41] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy
[42] Ist Nazl Fis Nucl, Sez Trieste, Grp Collegato Udine, I-33100 Udine, Italy
[43] Stellar Solut Inc, Palo Alto, CA 94306 USA
[44] Jacobs Technol, Huntsville, AL 35806 USA
[45] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[46] Univ Coll Dublin, Dublin 4, Ireland
[47] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan
[48] Open Univ Israel, Dept Nat Sci, IL-43537 Raanana, Israel
[49] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany
[50] Kyoto Univ, Grad Sch Sci, Dept Astron, Sakyo Ku, Kyoto 6068502, Japan