1. University of Alabama, Tuscaloosa, Department of Physics and Astronomy , Gallalee Hall, Box 870324 Tuscaloosa, AL 35487, USA
2. Laboratoire Lagrange, Université Côte d’Azur, Observatoire de la Côte d’Azur , CNRS, Blvd de l’Observatoire, CS 34229, F-06304 Nice Cedex 4, France
3. Laboratoire Leprince-Ringuet , CNRS/IN2P3, École polytechnique, Institut Polytechnique de Paris, F-91120 Palaiseau, France
4. Departament de Física Quàntica i Astrofísica, Institut de Ciències del Cosmos, Universitat de Barcelona , IEEC-UB, Martí i Franquès, 1, E-08028, Barcelona, Spain
5. Instituto de Astrofísica de Andalucía-CSIC, Glorieta de la Astronomía s /n, E-18008 Granada, Spain
6. Instituto de Física Teórica UAM/CSIC and Departamento de Física Teórica, Universidad Autónoma de Madrid , c/ Nicolás Cabrera 13-15, Campus de Cantoblanco UAM, E-28049 Madrid, Spain
7. Pontificia Universidad Católica de Chile , Av. Libertador Bernardo O’Higgins 340 Santiago, Chile
8. Gran Sasso Science Institute (GSSI) , Viale Francesco Crispi 7, I-67100 L’Aquila, Italy; and INFN-Laboratori Nazionali del Gran Sasso (LNGS), via G. Acitelli 22, I-67100 Assergi (AQ), Italy
9. INAF – Osservatorio Astrofisico di Arcetri , Largo E. Fermi 5, I-50125 Firenze, Italy
10. TÜBİTAK Research Institute for Fundamental Sciences , 41470 Gebze, Kocaeli, Turkey
11. INFN Sezione di Napoli , Via Cintia, ed. G, I-80126 Napoli, Italy
12. INFN Sezione di Padova and Università degli Studi di Padova , Via Marzolo 8, I-35131 Padova, Italy
13. Institute for Cosmic Ray Research, University of Tokyo , 5-1-5, Kashiwa-no-ha, Kashiwa, Chiba 277-8582, Japan
14. Kapteyn Astronomical Institute, University of Groningen , Landleven 12, NL-9747 AD, Groningen, Netherlands
15. Department of Physics, Chemistry & Material Science, University of Namibia , Private Bag 13301, Windhoek 10005, Namibia
16. Centre for Space Research, North-West University , Potchefstroom 2520, South Africa
17. Universität Hamburg, Institut für Experimentalphysik , Luruper Chaussee 149, D-22761 Hamburg, Germany
18. School of Physics and Astronomy, Monash University , Melbourne, Victoria 3800, Australia
19. Department of Astronomy, University of Geneva , Chemin d’Ecogia 16, CH-1290 Versoix, Switzerland
20. Université Paris-Saclay, Université Paris Cité , CEA, CNRS, AIM, F-91191 Gif-sur-Yvette Cedex, France
21. Department of Physics, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
22. Research Center for the Early Universe, School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
23. IPARCOS-UCM, Instituto de Física de Partículas y del Cosmos, and EMFTEL Department, Universidad Complutense de Madrid , E-28040 Madrid, Spain
24. Faculty of Science and Technology, Universidad del Azuay , Cuenca, Ecuador
25. Deutsches Elektronen-Synchrotron , Platanenallee 6, D-15738 Zeuthen, Germany
26. Centro Brasileiro de Pesquisas Físicas , Rua Xavier Sigaud 150, RJ 22290-180, Rio de Janeiro, Brazil
27. Instituto de Astrofísica de Canarias and Departamento de Astrofísica, Universidad de La Laguna, E-38200 La Laguna , Tenerife, Spain
28. Institut für Theoretische Physik , Lehrstuhl IV: Plasma-Astroteilchenphysik, Ruhr-Universität Bochum, Universitätsstraße 150, D-44801 Bochum, Germany
29. Center for Astrophysics | Harvard & Smithsonian , 60 Garden St, Cambridge, MA 02138, USA
30. CIEMAT , Avda. Complutense 40, E-28040 Madrid, Spain
31. Max-Planck-Institut für Physik , Föhringer Ring 6, D-80805 München, Germany
32. INFN Sezione di Perugia and Università degli Studi di Perugia , Via A. Pascoli, I-06123 Perugia, Italy
33. Pidstryhach Institute for Applied Problems in Mechanics and Mathematics NASU , 3B Naukova Street, Lviv 79060, Ukraine
34. Univ. Savoie Mont Blanc , CNRS, Laboratoire d’Annecy de Physique des Particules – IN2P3, F-74000 Annecy, France
35. Center for Astrophysics and Cosmology (CAC), University of Nova Gorica , SI-5000 Nova Gorica, Slovenia
36. INAF – Osservatorio Astronomico di Roma , Via di Frascati 33, I-00040, Monteporzio Catone, Italy
37. ETH Zürich, Institute for Particle Physics and Astrophysics , Otto-Stern-Weg 5, CH-8093 Zürich, Switzerland
38. INFN Sezione di Bari , via Orabona 4, I-70126 Bari, Italy
39. Politecnico di Bari , via Orabona 4, I-70124 Bari, Italy
40. INAF – Osservatorio Astronomico di Palermo ‘G.S. Vaiana’ , Piazza del Parlamento 1, I-90134 Palermo, Italy
41. Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences , ul. Bartycka 18, PL-00-716 Warsaw, Poland
42. IRFU, CEA, Université Paris-Saclay , Bât 141, F-91191 Gif-sur-Yvette, France
43. Centre for Advanced Instrumentation, Department of Physics, Durham University , South Road, Durham DH1 3LE, UK
44. INAF – Osservatorio di Astrofisica e Scienza dello spazio di Bologna , Via Piero Gobetti 93/3, I-40129 Bologna, Italy
45. University of Geneva – Département de physique nucléaire et corpusculaire , 24 rue du Général-Dufour, CH-1211 Genève 4, Switzerland
46. CCTVal, Universidad Técnica Federico Santa María , Avenida España 1680, Valparaíso, Chile
47. The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences , ul. Radzikowskiego 152, PL-31-342 Cracow, Poland
48. INAF – Osservatorio Astronomico di Capodimonte , Via Salita Moiariello 16, I-80131 Napoli, Italy
49. Aix Marseille Univ , CNRS/IN2P3, CPPM, 13288 Marseille cedex 09, France
50. Université Paris Cité , CNRS, CEA, Astroparticule et Cosmologie, F-75013 Paris, France
51. University of the Witwatersrand , 1 Jan Smuts Avenue, Braamfontein, 2000 Johannesburg, South Africa
52. INFN Sezione di Torino , Via P. Giuria 1, I-10125 Torino, Italy
53. Dipartimento di Fisica – Universitá degli Studi di Torino , Via Pietro Giuria 1, I-10125 Torino, Italy
54. Palacký University Olomouc, Faculty of Science, Joint Laboratory of Optics of Palacký University and Institute of Physics of the Czech Academy of Sciences , 17. listopadu 1192/12, 779 00 Olomouc, Czech Republic
55. INAF – Osservatorio Astrofisico di Catania , Via S. Sofia, 78, I-95123 Catania, Italy
56. University of Oxford, Department of Physics, Clarendon Laboratory , Parks Road, Oxford OX1 3PU, UK
57. INAF – Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano , Via A. Corti 12, I-20133 Milano, Italy
58. LUTH, GEPI and LERMA, Observatoire de Paris, Université PSL , Université Paris Cité, CNRS, 5 place Jules Janssen, F-92190 Meudon, France
59. INAF – Istituto di Radioastronomia , Via Gobetti 101, I-40129 Bologna, Italy
60. INAF – Istituto Nazionale di Astrofisica , Viale del Parco Mellini 84, I-00136 Rome, Italy
61. Instituto de Astronomia, Geofísico , e Ciências Atmosféricas – Universidade de São Paulo, Cidade Universitária, R. do Matão, 1226, CEP 05508-090, São Paulo, SP, Brazil
62. Instituto de Física de São Carlos , Universidade de São Paulo, Av. Trabalhador São-carlense, 400 – CEP 13566-590, São Carlos, SP, Brazil
63. Max-Planck-Institut für Kernphysik , Saupfercheckweg 1, D-69117 Heidelberg, Germany
64. Universitá degli Studi di Napoli ‘Federico II’ - Dipartimento di Fisica ‘E. Pancini’ , Complesso Universitario di Monte Sant’Angelo, Via Cintia, I-80126 Napoli, Italy
65. INFN Sezione di Bari and Università degli Studi di Bari , via Orabona 4, I-70124 Bari, Italy
66. Institut für Astronomie und Astrophysik , Universität Tübingen, Sand 1, D-72076 Tübingen, Germany
67. Université Bordeaux , CNRS, LP2I Bordeaux, UMR 5797, 19 Chemin du Solarium, F-33170 Gradignan, France
68. Department of Astronomy and Astrophysics, University of Chicago , 5640 S Ellis Ave, Chicago, IL 60637, USA
69. LAPTh , CNRS, USMB, F-74940 Annecy, France
70. Institut für Physik & Astronomie, Universität Potsdam , Karl-Liebknecht-Strasse 24/25, D-14476 Potsdam, Germany
71. Escola de Artes, Ciências e Humanidades, Universidade de São Paulo , Rua Arlindo Bettio, CEP 03828-000, 1000 São Paulo, Brazil
72. Astronomical Observatory of Taras Shevchenko National University of Kyiv , 3 Observatorna Street, Kyiv 04053, Ukraine
73. University of California , Davis, One Shields Ave., Davis, CA 95616, USA
74. RIKEN, Institute of Physical and Chemical Research , 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
75. Western Sydney University , Locked Bag 1797, Penrith, NSW 2751, Australia
76. INAF – Istituto di Astrofisica e Planetologia Spaziali (IAPS) , Via del Fosso del Cavaliere 100, I-00133 Roma, Italy
77. Department of Physics, Nagoya University , Chikusa-ku, Nagoya, 464-8602, Japan
78. INFN Sezione di Pisa, Edificio C – Polo Fibonacci , Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy
79. INFN Sezione di Roma Tor Vergata , Via della Ricerca Scientifica 1, I-00133 Rome, Italy
80. Alikhanyan National Science Laboratory, Yerevan Physics Institute , 2 Alikhanyan Brothers St., 0036 Yerevan, Armenia
81. INFN Sezione di Catania , Via S. Sofia 64, I-95123 Catania, Italy
82. Departamento de Engenharias e Exatas, Universidade Federal Do Paraná - Setor Palotina , Rua Pioneiro, 2153, Jardim Dallas, CEP: 85950-000 Palotina, Paraná, Brazil
83. Núcleo de Astrofísica e Cosmologia (Cosmo-ufes) & Departamento de Física , Universidade Federal do Espírito Santo (UFES), Av. Fernando Ferrari, 514. 29065-910. Vitória-ES, Brazil
84. Astrophysics Research Center of the Open University (ARCO), The Open University of Israel , PO Box 808, Ra’anana 4353701, Israel
85. Department of Physics, The George Washington University , Washington, DC 20052, USA
86. FZU – Institute of Physics of the Czech Academy of Sciences , Na Slovance 1999/2, CZ-18221 Praha 8, Czech Republic
87. National Institute of Technology , Ichinoseki College, Hagisho, Ichinoseki, Iwate 021-8511, Japan
88. Universidad Nacional Autónoma de México , Delegación Coyoacán, 04510 Ciudad de México, Mexico
89. Department of Physics and Astronomy and the Bartol Research Institute, University of Delaware , Newark, DE 19716, USA
90. Universität Innsbruck , Institut für Astro- und Teilchenphysik, Technikerstr. 25/8, 6020 Innsbruck, Austria
91. Dipartimento di Scienze Fisiche e Chimiche, Università degli Studi dell’Aquila and GSGC-LNGS-INFN , Via Vetoio 1, L’Aquila 67100, Italy
92. Astronomical Observatory, Jagiellonian University , ul. Orla 171, PL-30-244 Cracow, Poland
93. Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen Centre for Astroparticle Physics , Nikolaus-Fiebiger-Str. 2, D-91058 Erlangen, Germany
94. Astronomical Institute of the Czech Academy of Sciences , Bocni II 1401, CZ-14100 Prague, Czech Republic
95. Faculty of Science, Ibaraki University , Mito, Ibaraki, 310-8512, Japan
96. Institut de Fisica d’Altes Energies (IFAE) , The Barcelona Institute of Science and Technology, Campus UAB, E-08193 Bellaterra (Barcelona), Spain
97. Institut de Recherche en Astrophysique et Planétologie , CNRS-INSU, Université Paul Sabatier, 9 avenue Colonel Roche, BP 44346, F-31028 Toulouse Cedex 4, France
98. Dept. of Physics and Astronomy, University of Leicester , Leicester LE1 7RH, UK
99. Sorbonne Université , CNRS/IN2P3, Laboratoire de Physique Nucléaire et de Hautes Energies, LPNHE, 4 place Jussieu, F-75005 Paris, France
100. Università degli studi di Catania , Dipartimento di Fisica e Astronomia ‘Ettore Majorana’, Via S. Sofia 64, I-95123 Catania, Italy
101. Finnish Centre for Astronomy with ESO, University of Turku , Finland , FI-20014 University of Turku, Finland
102. Department of Physics, Humboldt University Berlin , Newtonstr. 15, D-12489 Berlin, Germany
103. INFN Sezione di Trieste and Università degli Studi di Trieste , Via Valerio 2 I, I-34127 Trieste, Italy
104. Escuela Politécnica Superior de Jaén, Universidad de Jaén , Campus Las Lagunillas s/n, Edif. A3, E-23071 Jaén, Spain
105. Anton Pannekoek Institute/GRAPPA, University of Amsterdam , Science Park 904, NL-1098 XH Amsterdam, the Netherlands
106. Saha Institute of Nuclear Physics , Bidhannagar, Kolkata-700 064, India
107. Dipartimento di Fisica e Chimica ‘E. Segrè’, Università degli Studi di Palermo , Via Archirafi 36, I-90123 Palermo, Italy
108. INFN and Università degli Studi di Siena , Dipartimento di Scienze Fisiche, della Terra e dell’Ambiente (DSFTA), Sezione di Fisica, Via Roma 56, I-53100 Siena, Italy
109. Department of Physics, Columbia University , 538 West 120th Street, New York, NY 10027, USA
110. Department of Physics, Yamagata University , Yamagata, Yamagata 990-8560, Japan
111. University of Białystok, Faculty of Physics , ul. K. Ciołkowskiego 1L, PL-15-245 Białystok, Poland
112. Department of Physics, Tokai University , 4-1-1, Kita-Kaname, Hiratsuka, Kanagawa 259-1292, Japan
113. Charles University, Institute of Particle & Nuclear Physics , V Holešovičkách 2, CZ-180 00 Prague 8, Czech Republic
114. Astronomical Observatory of Ivan Franko National University of Lviv , 8 Kyryla i Mephodia Street, Lviv, 79005, Ukraine
115. Institute for Space—Earth Environmental Research , Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
116. Kobayashi—Maskawa Institute for the Origin of Particles and the Universe, Nagoya University , Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
117. Department of Physics and Astronomy, University of California , Los Angeles, CA 90095, USA
118. Graduate School of Technology, Industrial and Social Sciences , Tokushima University, Tokushima 770-8506, Japan
119. Cherenkov Telescope Array Observatory , Saupfercheckweg 1, D-69117 Heidelberg, Germany
120. INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo , Via U. La Malfa 153, I-90146 Palermo, Italy
121. University of Pisa , Largo B. Pontecorvo 3, I-56127 Pisa, Italy
122. University of Rijeka, Faculty of Physics , Radmile Matejcic 2, 51000 Rijeka, Croatia
123. INAF – Osservatorio Astronomico di Padova , Vicolo dell’Osservatorio 5, I-35122 Padova, Italy
124. International Institute of Physics, Universidade Federal do Rio Grande do Norte , 59078-970 Natal, RN, Brasil
125. Departamento de Física, Universidade Federal do Rio Grande do Norte , 59078-970, Natal, RN, Brasil
126. Landessternwarte , Zentrum für Astronomie der Universität Heidelberg, Königstuhl 12, D-69117 Heidelberg, Germany
127. Centre for Astro-Particle Physics (CAPP) and Department of Physics, University of Johannesburg , PO Box 524, Auckland Park 2006, South Africa
128. Departamento de Astronomía, Universidad de Concepción , Barrio Universitario S/N, Concepción, Chile
129. INAF – Osservatorio Astronomico di Brera , Via Brera 28, I-20121 Milano, Italy
130. Main Astronomical Observatory of the National Academy of Sciences of Ukraine , Zabolotnoho Str., 27, 03143, Kyiv, Ukraine
131. Space Technology Centre, AGH University of Science and Technology , Aleja Mickiewicza, 30, PL-30-059, Kraków, Poland
132. Academic Computer Centre CYFRONET AGH , ul. Nawojki 11, PL-30-950, Kraków, Poland
133. Cherenkov Telescope Array Observatory gGmbH , Via Gobetti, 40129 Bologna, Italy
134. Department of Physical Science, Hiroshima University , Higashi-Hiroshima, Hiroshima 739-8526, Japan
135. Institute of Space Sciences (ICE , CSIC), and Institut d’Estudis Espacials de Catalunya (IEEC), and Institució Catalana de Recerca I Estudis Avançats (ICREA), Campus UAB, Carrer de Can Magrans, s/n 08193 Cerdanyola del Vallés, Spain
136. INAF – Osservatorio Astrofisico di Torino , Strada Osservatorio 20, I-10025 Pino Torinese (TO), Italy
137. School of Physical Sciences, University of Adelaide , Adelaide SA 5005, Australia
138. Department of Physical Sciences, Aoyama Gakuin University , Fuchinobe, Sagamihara, Kanagawa, 252-5258, Japan
139. School of Physics and Astronomy, Sun Yat-sen University , 519082 Zhuhai, China