\begin{table}%t4 
\caption{Mid-infrared observations and results. \label{midirobs}}
%\centering
\par
\begin{tabular}{lcccc}
\hline
\hline
Filter     & $t_{\rm int}$ & Airmass & primary & secondary \\
\micron    & (s)       &        &(mJy)   & (mJy) \\
\\
\hline
\multicolumn{5}{c}{HD 199143}\\
11.7    &216   &1.53  &$144 \pm 16$  &$32 \pm 4 $\\
17.65   &240   &1.55  &$66  \pm 25$  &$41 \pm 14$ \\
\multicolumn{5}{c}{HD 358623}\\
8.9     &144   &1.90  &$62  \pm 9$   &$34 \pm 7$   \\
11.7    &240   &2.2   &$35  \pm 5$   &$15 \pm 4$ \\
17.65   &360   &2.1   &$<$20         &$<$20\\
\hline
\end{tabular}
\end{table}