\begin{table}%t1
 %\centering
\par
 \caption{\label{SED_tab}The spectral energy distribution of IRAS 16293-2422.}
\begin{tabular}{lllll} \hline \hline 
$\lambda$   & F$_\nu$\tablefootmark{a} & $\Delta$F$_\nu$\tablefootmark{b} &  $\theta_{\rm mb}$\tablefootmark{c}  & Ref. \\
($\mu$m)    & (Jy)    &         (Jy)    &     ($''$)        & \\ \hline
23.7        &  0.6    & 0.1             &   6.0           &  2 \\          
25          &  1.8    & 0.7             &   80.0          &  3 \\          
60          &  255.   & 122.            &  160.0          &  3 \\          
100         &  1032.  & 412.            &  237.0          &  3  \\           
350         &  500.   & 250.            &  9.0  &  1  \\              
450         &  270.   & 108.            &  7.8  &  1   \\               
850         &  20.2   & 8.              &  14.5 &  1   \\            
1300        &  6.4    & 2.6             &  22.0 &  4  \\ \hline         
\end{tabular}
\tablefoot{
\tablefoottext{a}{Integrated flux in Jy}.
\tablefoottext{b}{Uncertainties in Jy considering the calibration uncertainty, the noise levels, and the uncertainty in the source size.}
\tablefoottext{c}{Main beam of the instrument in arcsec.}}
\par
\tablebib{(1) This paper; (2) {\it Spitzer} catalog; (3) IRAS Point Source Catalog v2.1; (4) \citet{Sar96}.}
\end{table}