[1] Stanford Univ, Dept Phys, Kavli Inst Particle Astrophys & Cosmol, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA
[2] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA
[3] Univ Calif Santa Cruz, Dept Phys, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA
[4] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA
[5] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy
[6] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy
[7] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy
[8] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy
[9] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy
[10] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy
[11] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy
[12] Univ Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy
[13] Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy
[14] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy
[15] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France
[16] CSIC, IEEE, Inst Ciencies Espai, Barcelona 08193, Spain
[17] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy
[18] Artep Inc, Ellicott City, MD 21042 USA
[19] ASI Sci Data Ctr, I-00044 Rome, Italy
[20] Univ Montpellier 2, CNRS, IN2P3, Lab Univers & Particules Montpellier, Montpellier, France
[21] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy
[22] Ist Nazl Fis Nucl, Sez Trieste, Grp Coll Udine, I-33100 Udine, Italy
[23] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA
[24] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan
[25] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[26] INAF Ist Radioastron, I-40129 Bologna, Italy
[27] Univ Paris Diderot, CEA Saclay, CEA IRFU, CNRS,Serv Astrophys,Lab AIM, F-91191 Gif Sur Yvette, France
[28] Univ Alabama, CSPAR, Huntsville, AL 35899 USA
[29] Ist Nazl Astrofis, Osservatorio Astron Trieste, I-34143 Trieste, Italy
[30] Univ Iceland, Inst Sci, IS-107 Reykjavik, Iceland
[31] Ibaraki Univ, Coll Sci, Mito, Ibaraki 3108512, Japan
[32] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan
[33] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy
[34] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy
[35] Univ Maryland, Dept Phys, College Pk, MD 20742 USA
[36] Univ Maryland, Dept Astron, College Pk, MD 20742 USA
[37] Boise State Univ, Dept Phys, Boise, ID 83725 USA
[38] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan
[39] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany
[40] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA
[41] JAXA, Inst Space & Astronaut Sci, Chuo Ku, Kanagawa 2525210, Japan
[42] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany
[43] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria
[44] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria
[45] Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Dept Phys, Columbus, OH 43210 USA
[46] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA
[47] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA
[48] CIFS, I-10133 Turin, Italy
[49] IRAP, CNRS, F-31028 Toulouse 4, France
[50] Univ Toulouse, UPS OMP, IRAP, Toulouse, France