\begin{table}%t4
%\centering
\par
\caption{\label{tbl_aper_corr}Aperture correction factors.}
\begin{tabular}{ccc}
\hline\hline \noalign{\smallskip}
Band & Aperture correction & SSC recommended \\
\hline
IRAC 3.6~$\mu$m &  $1.2129 \pm 0.0008$ & 1.205 \\
IRAC 4.5~$\mu$m &  $1.2730 \pm 0.0005$ & 1.221 \\
IRAC 5.8~$\mu$m &  $1.4693 \pm 0.0007$ & 1.363 \\
IRAC 8.0~$\mu$m &  $1.6556 \pm 0.0006$ & 1.571 \\
MIPS  24~$\mu$m &  $1.5742 \pm 0.0007$ & 2.560 \\
\hline
\end{tabular}
%\vspace*{2.5mm}
\end{table}