\begin{table} %T4
\caption{\label{tab4}\ion{Fe}{ii} energy levels for the  3d$^{6}$~($^{3}$G)4f subconfiguration. Energies
between parentheses are predicted values.} 
\small%\centering
\par
\begin{tabular}{crcrcrcrcrcrrrr}
\hline\hline\noalign{\smallskip}
\multicolumn{1}{c}{Design-}&
\multicolumn{1}{c}{$J$}&
\multicolumn{1}{c}{Energy}&
\multicolumn{1}{c}{c$-$o}&
\multicolumn{1}{c}{Design-}&
\multicolumn{1}{c}{$J$}&
\multicolumn{1}{c}{Energy}&
\multicolumn{1}{c}{c$-$o}&
\multicolumn{1}{c}{Design-}&
\multicolumn{1}{c}{$J$}&
\multicolumn{1}{c}{Energy}&
\multicolumn{1}{c}{c$-$o}&
\\
\multicolumn{1}{c}{ation}&
\multicolumn{1}{c}{}&
\multicolumn{1}{c}{cm$^{-1}$}&
\multicolumn{1}{c}{cm$^{-1}$}&
\multicolumn{1}{c}{ation}&
\multicolumn{1}{c}{}&
\multicolumn{1}{c}{cm$^{-1}$}&
\multicolumn{1}{c}{cm$^{-1}$}&
\multicolumn{1}{c}{ation}&
\multicolumn{1}{c}{}&
\multicolumn{1}{c}{cm$^{-1}$}&
\multicolumn{1}{c}{cm$^{-1}$}
\\
 \hline
5[8]   & 17/2 & 127~507.241& $-$5.657\\
       & 15/2 & 127~524.1227&$+$14.501\\
\\
5[7]   & 15/2 & 127~484.653 &$-$1.445  &4[7]& 15/2 & 127~892.981&$+$4.313\\
       & 13/2 & 127~515.235 &$+$2.816  &    & 13/2 & 127~895.260&$+$3.367\\
\\
5[6]   &13/2  & 127~489.429 &$-$4.823  &4[6]& 13/2 & 127~875.000 &$+$2.236 & 3[6] &13/2 & 128~110.214&$-$2.182\\
       &11/2  & 127~489.977 &$-$0.294  &    & 11/2 & 127~880.436 &$+$1.216 &      &11/2 &(128~076.012)& \\
\\
5[5]   &11/2  &127~482.748&$+$3.147 & 4[5]& 11/2 & 127~869.158 &$+$0.993 & 3[5] & 11/2& 128~071.171&$-$10.517\\
       &9/2   & (127~484.561)& &      &  9/2 & 127~855.952 &$-$16.898  &     & 9/2 & 128~055.658&$-$16.898\\
\\
5[4]   &9/2   & 127~485.362 &$-$15.194 & 4[4]&  9/2 & 127~869.892 &$-$4.920 & 3[4] & 9/2 & 128~062.710&$-$15.669\\
       &7/2   & 127~485.699&$+$9.404  &    &  7/2 & (127~871.098)& &       & 7/2 & 128~066.823&$-$22.228\\
\\
5[3]   &7/2   &(127~476.624)&   & 4[3] & 7/2 &(127~877.776) &  & 3[3] & 7/2 & (128~047.849)\\
       &5/2   &127~510.913 &$+$9.552   &    & 5/2 &   127~874.745&$+$5.549 &      & 5/2 & 128~063.103&$-$8.192\\
\\
5[2]   &5/2   &(127~499.343) & & 4[2] & 5/2 &(127~868.807)&  &3[2] & 5/2 & 128~089.313&$+$10.032\\
       &3/2   &127~487.681 &$-$0.341 &    & 3/2 &(127~895.930) & &      & 3/2 & (128~069.044) &\\
\\
       &      &           &   &4[1] &3/2 &(127~876.787) & &  3[1] & 3/2 &(128~099.051) &\\
       &      &           &   &     &1/2 &(127~898.510) & &      & 1/2 & (128~099.237) &\\
\\
       &      &            &  &     &    &             &   &3[0] &1/2 &(128~161.312) & \\
\par
\hline
\end{tabular}
\tablefoot{Energies
between parentheses are predicted values.}
\vspace*{4mm}
\end{table}