\begin{table}%t1
%\centering
\par
\caption{\label{table:obs} The observed fields.}
\begin{tabular}{c c c c}
\hline\hline   \noalign{\smallskip}         
Target     &  RA (J2000)       & Dec (J2000)  &   Map size (PACS/SPIRE)\\
\hline         
 PCC~249  &    22 21 17.6   &   +63 42 25    &  50$\arcmin$/50$\arcmin$  \\
 PCC~288  &    22 53 31.3   &   +62 31 44    &  18$\arcmin$/30$\arcmin$  \\
 PCC~550  &    12 25 16.5   &   $-$71 46 03  & 18$\arcmin$/30$\arcmin$  \\
\hline
\end{tabular}
\vspace*{-4mm}
\end{table}