\begin{table}%t2
\caption{\label{TabSigmaMass}Maximum difference in mass estimates.}
%\centering
\par
\begin{tabular}{ccccc}
\hline\hline\noalign{\smallskip}
Cluster & $\sigma_{B}(\rm max)$  &   $\sigma_{\rm turb} (\rm max)$  &   $\sigma_{\rm cr} (\rm max)$  &  $\sigma_{\rm total} (\rm max)$ \\
\hline
A496  & 17.33\% &  5.52\% &  4.87\%  & 27.72\%  \\
A1689 & 20.07\% &  3.87\% &  9.47\%  & 33.40\% \\
A2050 &  1.24\% &  0.82\% & 10.69\%  & 12.74\% \\
A2631 &  0.59\% &  0.77\% &  9.79\%  & 11.15\% \\
A2667 & 14.92\% &  3.06\% &  9.93\%  & 27.90\%  \\
\hline
\end{tabular}
\end{table}