\begin{table}%t1
\caption{\label{ObsLine}ATCA Observational Parameters and Results for NGC 4945.}
%\centering
\par
\begin{tabular}{lll}
\hline \hline\noalign{\smallskip}
        & \multicolumn{1}{c}{NGC~4945} \\
\hline
Array configuration         & 750D (1993 Jul. 25), 1.5D (1994 Sep. 21), 6C (94 Oct. 03) \\
Date of observation         & 1993 Jul. 25, 1994 Sep. 21, 94 Oct. 03 \\
Integration time            & 22.7~h \\
Transitions                 & H92$\alpha$ \& H91$\alpha$ \\
$\nu_{\rm rest}$ of RRL      & 8309.38~MHz \& 8584.82~MHz \\
$\nu_{\rm{band-centre}}$      & 8295.00~MHz \& 8570.00~MHz \\
$V_{{\rm systemic,helio,optical}}$
                            & 560~km~s$^{-1}$ (Paglione \cite{paglione97}) \\
Distance                    & 3.8~Mpc \\
Bandwidth, channels, IFs   &  64~MHz, 64, 4 \\
Spectral resolution        &  36~km~s$^{-1}$ \\
\par
Minimum baseline           & 0.86~$k\lambda$ \\
\par
Beam size (natural weight) &  $3.4'' \times 2.7'' $ at $-$55$^{\circ}$ \\
\par
Beam size (uniform weight) &  $1.35'' \times 1.18'' $ at -4$^{\circ}$ \\
Phase calibrator (B1950)    & 1320-446 \\
Bandpass calibrator (B1950) & 1226+023, 1320-446, 1934-638, 2251+158 \\
\bf{Line and Continuum Properties} & \\
Peak continuum flux density  & $(538 \pm 80)$~mJy~beam$^{-1}$ (natural weighting)\\
Total continuum flux density & $(1424 \pm 220)$~mJy  \\
Noise per image channel      & 0.21~mJy~beam$^{-1}$ \\
Peak line flux density       & $(17.8 \pm 2.8)$~mJy \\
Integrated line flux         & $(11.3 \pm 1.8) \times 10^{-22}$~W~m$^{-2}$ \\
Measured line width ({\it FWHM})   & $(225 \pm 15)$~km~s$^{-1}$   \\
Deconvolved line width ({\it FWHM})  & $(221 \pm 15)$~km~s$^{-1}$  \\
Centroid helio. optical vel.   & $(581 \pm 15)$~km~s$^{-1}$   \\
No. of beam areas where line is observed     & 1.5 (naturally weighted)\\
\hline
\end{tabular}
\end{table}