\begin{table}%t1
%\centering
\par
\caption {Excitation temperatures inferred from observations of H$_2$ rotational (pix1 and pix2) and rovibrational (A1 and~A2) transitions in~L1157.
\label{Tab1}}
\begin{tabular}{ccc}
  \hline\hline
   $T_{\rm exc} ({\rm K}) $ & Without reddening & With reddening \\
  \hline
  pix1 & 1090~$\pm$~110 & 1080~$\pm$~110 \\
  pix2 & 860~$\pm$~50 & 940~$\pm$~30 \\
  A1 & 2740~$\pm$~130 & 2870~$\pm$~150 \\
  A2 & 2940~$\pm$~170 & 3090~$\pm$~180 \\
  \hline
\end{tabular}
\end{table}