1. International Centre for Radio Astronomy Research – Curtin University, GPO Box U1987, Perth, WA 6845, Australia
2. Centre for Astrophysics and Supercomputing, Swinburne University of Technology, John St, Hawthorn, VIC 3122, Australia
3. CSIRO Astronomy and Space Science, Australia Telescope National Facility, PO Box 76, Epping, NSW 1710, Australia
4. ARC Centre of Excellence for Gravitational Wave Discovery (OzGrav), Swinburne University of Technology, Mail Number H11, PO Box 218, Melbourne, VIC 3122, Australia
5. International Centre for Radio Astronomy Research, The University of Western Australia, 35 Stirling Highway, WA 6009, Australia
6. Jodrell Bank Centre for Astrophysics, Alan Turing Building, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
7. Departament de Física Quàntica i Astrofísica, Institut de Ciències del Cosmos (ICCUB), Universitat de Barcelona, IEEC-UB, Martí i Franquès 1, E-08028 Barcelona, Spain
8. Université Grenoble Alpes, CNRS, IPAG, F-38000 Grenoble, France
9. National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22903-2475, USA
10. Space Sciences Laboratory, 7 Gauss Way, University of California, Berkeley, CA 94720-7450, USA