\begin{table}%t3
\caption{\label{Tab:Simulations}Errors from simulations.}
%\centerline
$${
{\begin{tabular}{l|ccccccccccc}
\hline
\hline
Param. & \multicolumn{2}{c}{$V$ [km s$^{-1}$]} & ~ & \multicolumn{2}{c}{$\sigma$ [km s$^{-1}$]} & ~ &
\multicolumn{2}{c}{$h_3$} & ~ & \multicolumn{2}{c}{$h_4$}\\
\cline{2-3} \cline{5-6} \cline{8-9} \cline{11-12}     
{\it S/N} &{\small 20} & {\small 33} & ~ & {\small 20} & {\small 33} & ~ & 
{\small 20} & {\small 33} & ~ & {\small 20} & {\small 33}\\ 
std(SSP)    & 15 & 13 & ~ & 29 & 15 & ~ & -- & 0.07 & ~ & -- & 0.08\\
std(Stars)  & 18 & 16 & ~ & 34 & 18 & ~ & -- & 0.07 & ~ & -- & 0.10\\
 \hline
\end{tabular}}}$$
\smallskip
{{\bf Notes:} 
Standard deviations for each parameter at the different signal-to-noise ratios 
measured from the simulations (see Sect.~\ref{Sub:Errsim}).}
\end{table}