\begin{table}%t1
%\centering
\par
\caption{\label{table:counterparts}Number of counterparts of our SiO targets.}
\begin{tabular}{l|rrr|rrr|ccc}
\hline
\hline
{\rm~~} &\multicolumn{3}{c}{\rm 2MASS} & \multicolumn{3}{c}{\rm DENIS} & {\rm ISOGAL} & {\rm MSX} & {\rm IRAS}\\
{\rm~~} &\multicolumn{3}{c}{\rm all sky data release } & \multicolumn{3}{c}{\rm bulge PSC } & {\rm PSC 1.0} & {\rm PSC 1.2} & {\rm PSC 2.0}\\
{\rm~~} &\multicolumn{3}{c}{\rm \citep{2massES}} & \multicolumn{3}{c}{\rm \citep{simon03}} & {\rm \citep{schuller03}} & {\rm \citep{egan99}} & {\rm \citep{iras}}\\
{\rm}&{$J$}&{$H$}&{$K_{\rm S}$}&{$I$}&{$J$}&{$K_{\rm S}$}&&&\\
\hline
{\rm ISO~~~~}(253) &     252&252&252           &53&217&253                     &   253        & 191       &   ~43 \\ 
{\rm MSX~~}(188) &     187&187&187           &~42&149&188                     &    ~14        & 188       &   122 \\
\hline
{\rm Total}~~(441) &     $^{\rm + }$439&$^{\rm ++ }$439&439           &95&$^{\rm * }$366 & $^{\rm **}$441&267& 379 &   165 \\
\hline
\end{tabular}
\begin{list}{}{}
\item[]
$^{{\rm +}}$ 
~~72 are upper limits.
\hspace{0.5 cm} 
$^{{\rm *}}$ 
~~16 have magnitudes above saturation limits.
\item[]
$^{{\rm ++}}$
13 are upper limits.
\hspace{0.5cm} 
$^{{\rm **}}$
104 have magnitudes above saturation limits.
\end{list}
\end{table}