\begin{table}%t1
%\centering
\par
\caption{\label{beamTable}Overview of the beam sizes in the millimetre-maps.}
%\centering
\par
\small \begin{tabular}{c c c c}
\hline \hline\noalign{\smallskip}
Instrument & $\lambda [{\rm mm}]$ & PSF ($FWHM$) [$^{\prime\prime}$] & Orientation\\
    \hline
      SMA & $1.1$ & $1.00\times0.84$ & $-59.3^\circ$\\
      OVRO & $1.3$ & $0.61\times0.36$ & $-53.8^\circ$\\
      OVRO & $2.7$ & $1.21\times0.87$ & $-58.3^\circ$\\
    \hline
  \end{tabular}
\end{table}