\begin{table}%T1
\caption{Summary of simulations.}
\label{tab1}
\par
	$$
\begin{array}{cccccc}
	\hline\hline
        \noalign{\smallskip}
(f_{\rm spiral}/f_{\rm total})_{\rm model}  & (f_{\rm 
spiral}/f_{\rm total})_{\rm recon}& 
S/N 
& \Delta\phi &\\
\hline
	\noalign{\smallskip}
   0.40 &     0.17 &  25  &0.015 &{\rm Fig.~3}\\
   0.40 &     0.25 &  25  &0.010 & "\\
   0.40 &     0.28 &  25  &0.005 & "\\
   0.40 &     0.18 &  50  &0.015 & "\\
   0.40 &     0.25 &  50  &0.010 & "\\
   0.40 &     0.35 &  50  &0.005 & "\\
\par
   0.40 &     0.25 &  25  &0.010 &{\rm Fig.~5}\\
   0.30 &     0.32 &  25  &0.010 & "\\
   0.20 &     0.13 &  25  &0.010 & "\\
   0.10 &     0.14 &  25  &0.010 & "\\
   0.40 &     0.25 &  50  &0.010 & "\\
   0.30 &     0.27 &  50  &0.010 & "\\
   0.20 &     0.19 &  50  &0.010 & "\\
   0.10 &     0.13 &  50  &0.010 & "\\
        \noalign{\smallskip}
        \hline
         \end{array}
     $$ 
$(f_{\rm spiral}/f_{\rm total})_{\rm model}$: is the fractional 
contribution in the model eclipse map. 
\\ $(f_{\rm spiral}/f_{\rm total})_{\rm recon}$: is the fraction 
measured by dividing the average flux in the asymmetric map by the average 
flux in the reconstructed eclipse map.
\end{table}