1. Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, UK
2. Research School of Astronomy and Astrophysics, Australian National University, ACT 2611, Australia
3. Centre for Astrophysics and Supercomputing, Swinburne University of Technology, PO Box 218, Hawthorn, VIC 3122, Australia
4. ARC Centre of Excellence for All-sky Astrophysics (CAASTRO), Sydney, NSW, Australia
5. SKA Organization, Jodrell Bank Observatory, Cheshire SK11 9DL, UK
6. Institute for Radio Astronomy and Space Research, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand
7. Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany
8. International Centre for Radio Astronomy Research, Curtin University, Bentley, WA 6102, Australia
9. CSIRO Astronomy and Space Science, Australia Telescope National Facility, PO Box 76, Epping, NSW 1710, Australia
10. INAF – Osservatorio Astronomico di Cagliari, Via della Scienza 5, I-09047 Selargius (CA), Italy
11. ASTRON, The Netherlands Institute for Radio Astronomy, Postbus 2, NL-7990 AA Dwingeloo, the Netherlands
12. Fakultät fur Physik, Universität Bielefeld, Postfach 100131, D-33501 Bielefeld, Germany