\begin{table}%t3
\caption{ATCA observations.}
\label{atca}
\small%\centerline
{
\begin{tabular}{c c}
\hline
\hline
Centre RA (J2000) & 13:09:34.699 \\
Centre Dec (J2000) & --51:58:06.99 \\
Frequency & 1402 MHz\\
Bandwidth & 16 MHz \\
Number of channels & 512 \\
Velocity resolution$^1$ & 13 km~s$^{-1}$ \\
\hline
21-cm emission & (natural weighting)\\
Synthesised beam & 78$''$ $\times$ $67''$\\
 & PA = 6.8 deg\\
rms noise  & 0.9 mJy/beam \\
Maximum signal & 10.5 mJy/beam \\
\hline
1.4 GHz continuum & (robust = 0.5)\\
Synthesised beam & 68$''$ $\times$ $59''$\\
 & PA = 5.3 deg\\
rms noise & 0.24 mJy/beam\\
Maximum signal & 37.21 mJy/beam \\
\hline
\end{tabular}}
\medskip
$^1$ After Hanning smoothing.
\end{table}