\def\ASU{$^{1}$} \def\ANU{$^{2}$} \def\CASS{$^{3}$} \def\Curtin{$^{4}$} \def\CfA{$^{5}$} \def\Haystack{$^{6}$} \def\MIT{$^{7}$} \def\NRAO{$^{8}$} \def\RRI{$^{9}$} \def\SKASA{$^{10}$} \def\Tata{$^{11}$} \def\UMelbourne{$^{12}$} \def\UMichigan{$^{13}$} \def\USydney{$^{14}$} \def\UW{$^{15}$} \def\UWisc{$^{16}$} \def\Victoria{$^{17}$} \def\CAASTRO{$^{18}$} %Author list \author[]{ G.~Bernardi\SKASA, J.~D.~Bowman\ASU, F.~Briggs\ANU, R.~J.~Cappallo\Haystack, B.~E.~Corey\Haystack, A.~A.~Deshpande\RRI, D.~Emrich\Curtin, B.~M.~Gaensler\USydney$^,$\CAASTRO, R.~Goeke\MIT, L.~J.~Greenhill\CfA, B.~J.~Hazelton\UW, J.~N.~Hewitt\MIT, M.~Johnston-Hollitt\Victoria, D.~L.~Kaplan\UWisc, J.~C.~Kasper\UMichigan$^,$\CfA, E.~Kratzenberg\Haystack, C.~J.~Lonsdale\Haystack, M.~J.~Lynch\Curtin, S.~R.~McWhirter\Haystack, D.~A.~Mitchell\CASS$^,$\CAASTRO, M.~F.~Morales\UW, E.~Morgan\MIT, D.~Oberoi\Tata, S.~M.~Ord\Curtin$^,$\CAASTRO, T.~Prabu\RRI, A.~E.~E.~Rogers\Haystack, D.~A.~Roshi\NRAO \footnote{The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc.}, N.~Udaya~Shankar\RRI, K.~S.~Srivani\RRI, R.~Subrahmanyan\RRI$^,$\CAASTRO, S.~J.~Tingay\Curtin$^,$\CAASTRO, M.~Waterson\Curtin$^,$\ANU, R.~B.~Wayth\Curtin$^,$\CAASTRO, R.~L.~Webster\UMelbourne$^,$\CAASTRO, A.~R.~Whitney\Haystack, A.~Williams\Curtin, C.~L.~Williams\MIT \\ $^{1}$School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, USA\\ $^{2}$Research School of Astronomy and Astrophysics, Australian National University, Canberra, ACT 2611, Australia\\ $^{3}$CSIRO Astronomy and Space Science, Marsfield, NSW 2122, Australia\\ $^{4}$International Centre for Radio Astronomy Research, Curtin University, Bentley, WA 6102, Australia\\ $^{5}$Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA\\ $^{6}$MIT Haystack Observatory, Westford, MA 01886, USA\\ $^{7}$Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA\\ $^{8}$National Radio Astronomy Observatory, Charlottesville and Greenbank, USA $^{9}$Raman Research Institute, Bangalore 560080, India\\ $^{10}$Square Kilometre Array South Africa (SKA SA), Cape Town 7405, South Africa\\ $^{11}$National Centre for Radio Astrophysics, Tata Institute for Fundamental Research, Pune 411007, India\\ $^{12}$School of Physics, The University of Melbourne, Parkville, VIC 3010, Australia\\ $^{13}$Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor, MI 48109, USA\\ $^{14}$Sydney Institute for Astronomy, School of Physics, The University of Sydney, NSW 2006, Australia\\ $^{15}$Department of Physics, University of Washington, Seattle, WA 98195, USA\\ $^{16}$Department of Physics, University of Wisconsin--Milwaukee, Milwaukee, WI 53201, USA\\ $^{17}$School of Chemical \& Physical Sciences, Victoria University of Wellington, Wellington 6140, New Zealand\\ $^{18}$ARC Centre of Excellence for All-sky Astrophysics (CAASTRO), \\ }