\begin{table}%t1
\caption{\label{table:1}Far-infrared optical depth, mass, and column density estimates.}
%\centering
\par
\vspace{-2mm}
\begin{tabular}{rcccccc}
\hline \hline\noalign{\smallskip}
$\lambda$ & 
$f$ \tablefootmark{a} & $f_{0}$ \tablefootmark{b} &$f_{\rm BG}$ \tablefootmark{c} &
$\tau$ & Mass & $N$(H+He) \\
$\mu$m & Jy/$\sq \arcsec$ & Jy/$\sq \arcsec$& Jy/$\sq \arcsec$ &  & \msun & cm$^{-2}$ \\
\hline   
\multicolumn{7}{c}{photProject (method 1)}\\
70  & 0.002 & 0.003 & 0.001 & 0.23 & 0.1 & $1.9 \times 10^{22}$\\
160 & 0.003 & 0.007 & 0.002 & 0.48 & 2.5 & $3.8 \times 10^{23}$\\
\hline
\multicolumn{7}{c}{MADmap (method 2)}\\
70  & 0.002 & 0.003 & 0.001 & 0.2  & 0.1 & $1.6 \times 10^{22}$ \\
160 & 0.004 & 0.008 & 0.002 & 0.45 & 2.4 & $3.5 \times 10^{23}$ \\
\hline                                   %inserts single line
\end{tabular}
\vspace{-1mm}
\tablefoot{\tablefoottext{a}{Derived in a ${\sim}7\arcsec$ radius region centered
  on RA = $5^{\rm h} 36^{\rm m}24.4^{\rm s}$, Dec = $-06\degr 42\arcmin
 56.4\arcsec$, indicated in Fig.~\ref{fig:img} as the inner most
 circular overlay in the \herschel\ PACS images.}
 \tablefoottext{b}{Derived in a ${\sim}15\arcsec$ to ${\sim}30\arcsec$
  radius half-annulus, excluding bright areas associated with V~380~Ori, 
  indicated in Fig.~\ref{fig:img} as well.}
 \tablefoottext{c}{Estimated background flux contribution to the PACS maps, 
  estimated as 50\% of the measurements from IRAS data 
  (interpolated to 70~\micron{}) and the 160~\micron{} {\it
  ISO} Serendipity Survey near \ngc.}} \vspace*{-3mm}
\end{table}