\begin{table}%t1
%\centering
\par
\caption{\label{tab:erracf}Relative mismatch (in \%) of the zero lag
  errors of the ACF ($w^R(\theta)$) estimates after 500 MC realizations when
  comparing them to the outcome of 100~000 MC simulations (evaluated only at
  $\theta=0$).}\small
\begin{tabular}{ccc}
\hline
\hline
\% error & $N_{\rm side}=16$ & $N_{\rm side}=64$ \\
 \hline
 $S_{\nu} >  2.5$~mJy & 1.5 & 2.3 \\
 $S_{\nu} >  30$~mJy & 2.9 & 2.4 \\
 $S_{\nu} >  60$~mJy & 0.7 & 2.8 \\
  \hline
 \end{tabular}
\end{table}