\begin{table}%T6
\caption{\label{tab:hd201601}Mean longitudinal magnetic field for the time series of~HD~201601.
}
%\centering
\par
\begin{tabular}{crr|crr}
\hline\hline
MJD &\multicolumn{1}{c}{$\left<{\cal B}_z\right>$}&\multicolumn{1}{c}{$\sigma{}_z$} 
&MJD&\multicolumn{1}{c}{$\left<{\cal B}_z\right>$} &\multicolumn{1}{c}{$\sigma{}_z$}\\
&\multicolumn{1}{c}{[G]}&\multicolumn{1}{c}{[G]} & &\multicolumn{1}{c}{[G]}&\multicolumn{1}{c}{[G]} \\
\hline
52~530.991626 & $-$1081 & 60 & 52~531.044233 & $-$1086 & 57 \\
52~530.995482 & $-$1135 & 54 & 52~531.047133 & $-$915 & 57 \\
52~531.017022 & $-$842 & 47 & 52~531.051108 & $-$1112 & 54 \\
52~531.026988 & $-$1065 & 57 & 52~531.054008 & $-$1106 & 54 \\
52~531.029854 & $-$739 & 57 & 52~531.056909 & $-$930 & 51 \\
52~531.032729 & $-$1164 & 60 & 52~531.059824 & $-$1084 & 51 \\
52~531.035599 & $-$1157 & 57 & 52~531.084795 & $-$1286 & 79 \\
52~531.038471 & $-$1273 & 51 & 52~531.093915 & $-$777 & 47 \\
52~531.041351 & $-$1163 & 54 & 52~531.096943 & $-$1384 & 51 \\
\hline
\end{tabular}
\end{table}