\begin{table}%tA.1
\caption{Correlation matrix of noise in the ACS $z$~band.}\label{rmsmat}
%\centering
\par
\begin{tabular}{cccc}
\hline
\hline
Column & --1 & 0 & +1 \\
\hline
+1 & 0.06411 & 0.28940 & 0.06131 \\
0  & 0.28436 & 1.00000 & 0.28436 \\
--1 & 0.06131 & 0.28940 & 0.06411 \\
\hline
\end{tabular}
\end{table}