\begin{table}%t3.a
\caption{\label{tab3a}Sample table of fine structure energy levels of Fe  
XX as sets of $LS$ term components. $C_{\rm t}$ is the core configuration, 
$\nu$ is the effective quantum number.}
%\centering
\par
\scriptsize
\begin{tabular}{lcrrrcrl}
\noalign{\smallskip}
\hline\hline
\noalign{\smallskip}
 \multicolumn{2}{c}{$C_{\rm t}(S_{\rm t}L_{\rm t}\pi_{\rm t})$} & $J_{\rm t}$ & $nl$ & $2J$ & $E$~(Ry) & 
$\nu$ & $SL\pi$ \\
\noalign{\smallskip}
 \hline
\noalign{\smallskip}
 \multicolumn{8}{l}{ Eqv electron/unidentified levels, parity: o
          }\\
 2s22p3   &     &    &   &  3& --1.15735E+02 &       &  4~ S o       \\
 \noalign{\smallskip}
 \multicolumn{8}{l}{$Nlv(c)=1$ : set complete
                                                                       } \\
 \noalign{\smallskip}
 \hline
 \noalign{\smallskip}
 \multicolumn{8}{l}{ Eqv electron/unidentified levels, parity: o
          }\\
 2s22p3   &     &    &   &  3& --1.14451E+02 &       &  2~ D o       \\
 2s22p3   &     &    &   &  5& --1.14080E+02 &       &  2~ D o       \\
 \noalign{\smallskip}
 \multicolumn{8}{l}{$Nlv(c)=2$~ : set complete
                                                                       } \\
 \noalign{\smallskip}
 \hline
 \noalign{\smallskip}
 \multicolumn{8}{l}{ Eqv electron/unidentified levels, parity: o
          }\\
 2s22p3   &     &    &   &  1& --1.13324E+02 &       &  2~ P o       \\
 2s22p3   &     &    &   &  3& --1.12741E+02 &       &  2~ P o       \\
 \noalign{\smallskip}
 \multicolumn{8}{l}{$Nlv(c)=2$~ : set complete
                                                                       } \\
 \noalign{\smallskip}
 \hline
 \noalign{\smallskip}
 \multicolumn{8}{l}{ Eqv electron/unidentified levels, parity: e
          }\\
 2s2p4    &     &    &   &  5& --1.08833E+02 &       &  4~ P e       \\
 2s2p4    &     &    &   &  3& --1.08225E+02 &       &  4~ P e       \\
 2s2p4    &     &    &   &  1& --1.08024E+02 &       &  4~ P e       \\
 \noalign{\smallskip}
 \multicolumn{8}{l}{$Nlv(c)=3$~ : set complete
                                                                       } \\
 \noalign{\smallskip}
 \hline
 \noalign{\smallskip}
 \multicolumn{8}{l}{ Eqv electron/unidentified levels, parity: e
          }\\
 2s2p4    &     &    &   &  3& --1.06161E+02 &       &  2~ D e       \\
 2s2p4    &     &    &   &  5& --1.06002E+02 &       &  2~ D e       \\
 \noalign{\smallskip}
 \multicolumn{8}{l}{$Nlv(c)=2$~ : set complete
                                                                       } \\
 \noalign{\smallskip}
 \hline
 \noalign{\smallskip}
 \multicolumn{8}{l}{ Eqv electron/unidentified levels, parity: e
          }\\
 2s2p4    &     &    &   &  1& --1.04752E+02 &       &  2~ S e       \\
 \noalign{\smallskip}
 \multicolumn{8}{l}{$Nlv(c)=1$~ : set complete
                                                                       } \\
 \noalign{\smallskip}
 \hline
 \noalign{\smallskip}
 \multicolumn{8}{l}{ Eqv electron/unidentified levels, parity: e
          }\\
 2s2p4    &     &    &   &  3& --1.04314E+02 &       &  2~ P e       \\
 2s2p4    &     &    &   &  1& --1.03421E+02 &       &  2~ P e       \\
 \noalign{\smallskip}
 \multicolumn{8}{l}{$Nlv(c)=2$~ : set complete
                                                                       } \\
 \noalign{\smallskip}
 \hline
 \noalign{\smallskip}
 \multicolumn{8}{l}{$Nlv=3$,~~$^4L^e$:
 P ( 5 3 1 )/2                                                           } \\
 \noalign{\smallskip}
 2s22p2   &(3Pe)& 1  & 3s&  1& --5.04616E+01 &  2.80 &  4~ P e       \\
 2s22p2   &(3Pe)& 1  & 3s&  3& --4.98576E+01 &  2.81 &  4~ P e       \\
 2s22p2   &(3Pe)& 2  & 3s&  5& --4.94420E+01 &  2.81 &  4~ P e       \\
 \noalign{\smallskip}
 \multicolumn{8}{l}{$Nlv(c)=3$~ : set complete
                                                                       } \\
 \noalign{\smallskip}
 \hline
 \noalign{\smallskip}
 \multicolumn{8}{l}{$Nlv=2$,~~$^2L^e$:
 P ( 3 1 )/2                                                             } \\
 \noalign{\smallskip}
 2s22p2   &(3Pe)& 0  & 3s&  1& --4.95776E+01 &  2.84 &  2~ P e       \\
 2s22p2   &(3Pe)& 2  & 3s&  3& --4.81072E+01 &  2.85 &  2~ P e       \\
 \noalign{\smallskip}
 \multicolumn{8}{l}{$Nlv(c)=2$~ : set complete                                                                                                         } \\
 \noalign{\smallskip}
 \hline
 \noalign{\smallskip}
 \multicolumn{8}{l}{$Nlv=2$,~~$^2L^e$:
 D ( 5 3 )/2                                                             } \\
 \noalign{\smallskip}
 2s22p2   &(1De)& 2  & 3s&  3& --4.91520E+01 &  2.79 &  2~ D e       \\
 2s22p2   &(1De)& 2  & 3s&  5& --4.81968E+01 &  2.82 &  2~ D e       \\
 \noalign{\smallskip}
 \multicolumn{8}{l}{$Nlv(c)=2$~ : set complete                                                                                                         } \\
 \noalign{\smallskip}
 \hline
 \noalign{\smallskip}
 \multicolumn{8}{l}{$Nlv=8$,~~$^4L^o$:
 S ( 3 )/2 P ( 5 3 1 )/2 D ( 7 5 3 1 )/2                                 } \\
 \noalign{\smallskip}
 2s22p2   &(3Pe)& 1  & 3p&  1& --4.86256E+01 &  2.85 &  4~ PD o      \\
 2s22p2   &(3Pe)& 1  & 3p&  3& --4.82304E+01 &  2.86 &  4~ SPD o     \\
 2s22p2   &(3Pe)& 0  & 3p&  1& --4.80568E+01 &  2.88 &  4~ PD o      \\
 2s22p2   &(3Pe)& 2  & 3p&  3& --4.77760E+01 &  2.86 &  4~ SPD o     \\
 2s22p2   &(3Pe)& 2  & 3p&  5& --4.76976E+01 &  2.86 &  4~ PD o      \\
 2s22p2   &(3Pe)& 2  & 3p&  5& --4.74888E+01 &  2.87 &  4~ PD o      \\
 2s22p2   &(3Pe)& 1  & 3p&  3& --4.73964E+01 &  2.88 &  4~ SPD o     \\
 2s22p2   &(3Pe)& 2  & 3p&  7& --4.72804E+01 &  2.88 &  4~ D o       \\
 \noalign{\smallskip}
 \multicolumn{8}{l}{Nlv(c)=~ 8~ : set complete                                                                                                         } \\
 \noalign{\smallskip}
 \hline
\end{tabular}
\end{table}