1. Wits Centre for Astrophysics, School of Physics, University of the Witwatersrand , 1 Jan Smuts Avenue, 2000, South Africa
2. Instituto de Astrofísica de Canarias , c/ Vía Láctea s/n, E-38205 La Laguna, Tenerife, Spain
3. Department of Physics and Electronics, Rhodes University , PO Box 94, Makhanda, 6140, South Africa
4. Departamento de Astrofísica, Universidad de La Laguna , E-38200 La Laguna, Spain
5. Kapteyn Astronomical Institute, University of Groningen , PO Box 800, NL-9700 AV Groningen, The Netherlands
6. Instituto de Astrofísica de Andalucía (CSIC) , Glorieta de la Astronomía, E-18008 Granada, Spain
7. South African Astronomical Observatory , P.O. Box 9, Observatory 7935, South Africa
8. Max-Plank-Institut für Radioastronomie , Auf dem Hügel 69, D-53121 Bonn, Germany
9. Université de Strasbourg, CNRS, Observatoire astronomique de Strasbourg , UMR 7550, F-67000 Strasbourg, France
10. Observatoire d’Astrophysique de l’Université Ouaga I Pr Joseph Ki-Zerbo (ODAUO) , BP 7021, Ouaga 03, Burkina Faso
11. School of Physics, H.H. Wills Physics Laboratory , Tyndall Avenue, University of Bristol, Bristol BS8 1TL, UK
12. University Observatory, Faculty of Physics, Ludwig-Maximilians-Universität , Scheinerstr 1, D-81679 Munich, Germany
13. South African Radio Astronomy Observatory , 2 Fir Street, Black River Park, Observatory, Cape Town, 7925, South Africa
14. The Inter-University Institute for Data Intensive Astronomy (IDIA), and University of Cape Town , Private Bag X3, Rondebosch, 7701, South Africa
15. Department of Astronomy, University of Cape Town , Private Bag X3, Rondebosch 7701, South Africa
16. School of Mathematics, Statistics & Computer Science, University of KwaZulu-Natal , Westville Campus, Durban 4041, South Africa
17. Département de physique, Université de Montréal , Complexe des sciences MIL, 1375 Avenue Thérèse-Lavoie-Roux, Montréal, QC H2V 0B3, Canada
18. Oxford Astrophysics , Denys Wilkinson Building, University of Oxford, Keble Rd, Oxford OX1 3RH, UK
19. Department of Physics, Virginia Polytechnic Institute and State University , 50 West Campus Drive, Blacksburg, VA 24061, USA
20. National Centre for Nuclear Research , ul. Pasteura 7, PL-02-093 Warsaw, Poland
21. Aix Marseille Univ, CNRS, CNES , LAM, Marseille 7326, France
22. INAF, Istituto di Radioastronomia , Via Gobetti 101, I-40129 Bologna, Italy
23. Department of Physics and Astronomy, University of the Western Cape , Robert Sobukwe Road, Bellville 7535, South Africa
24. Sterrenkundig Observatorium , Universiteit Gent, Krijgslaan 281 S9, B-9000 Gent, Belgium
25. International Centre for Radio Astronomy Research (ICRAR), University of Western Australia , 35 Stirling Highway, Perth, WA 6009, Australia
26. ASTRON, the Netherlands Institute for Radio Astronomy , Postbus 2, NL-7990 AA, Dwingeloo, the Netherlands
27. Research Center for Intelligent Computing Platforms, Zhejiang Laboratory , Hangzhou 311100, China