\begin{table}
\caption{Strongest lines measured in the RGS spectrum of SU~Aur. Only lines
with $S/N \ge 1.5$ are listed. Asterisks mark the lines used for the EM
reconstruction. $\lambda_{\rm obs}$ is the measured wavelenght,
$\lambda_{\rm pred}$ is the theoretical wavelenght of the transition, and
$T_{\rm max}$ is the temperature of maximum emissivity in K.
\label{lines_id}}
\begin{tabular}{crrlrlc}
\hline\hline 
 & \multicolumn{1}{c}{$\lambda_{\rm obs}$} & Total counts& Ion& $\lambda_{\rm pred}$& Transition                 & $\log T_{\rm max}$ \\
 & \multicolumn{1}{c}{(\AA)}                  &             &    & (\AA)                  & ($upper \rightarrow lower$)&                       \\
\hline
$*$&  $6.19\pm 0.03$&  $27\pm 13$& \ion{Si}{xiv}  &  6.18 & $\rm 2p~^2P_{3/2} \rightarrow 1s~^2S_{1/2}$             & 7.2 \\
   &                &            & \ion{Si}{xiv}  &  6.19 & $\rm 2p~^2P_{1/2} \rightarrow 1s~^2S_{1/2}$             & 7.2 \\
   &  $6.71\pm 0.04$&  $23\pm 13$& \ion{Si}{xiii} &  6.65 & $\rm 1s~2p~^1P_1 \rightarrow 1s^2~^1S_0$               & 7.0 \\
   &                &            & \ion{Si}{xiii} &  6.69 & $\rm 1s~2p~^3P_1 \rightarrow 1s^2~^1S_0$               & 7.0 \\
   &  $7.11\pm 0.02$&  $25\pm 13$& \ion{Mg}{xii}  &  7.11 & $\rm 3p~^2P_{3/2} \rightarrow 1s~^2S_{1/2}$             & 7.0 \\
   &                &            & \ion{Mg}{xii}  &  7.11 & $\rm 3p~^2P_{1/2} \rightarrow 1s~^2S_{1/2}$             & 7.0 \\
   &  $7.86\pm 0.03$&  $25\pm 13$& \ion{Mg}{xi}   &  7.85 & $\rm 1s~3p~^1P_1 \rightarrow 1s^2~^1S_0$               & 6.8 \\
   &                &            & \ion{Fe}{xxiii}&  7.90 & $\rm 1s^2~2s~5d~^1D_2 \rightarrow 1s^2~2s~2p~^1P_1$ & 7.2 \\
   &                &            & \ion{Al}{xii}  &  7.87 & $\rm 1s~2s~^3S_1 \rightarrow 1s^2~^1S_0$               & 6.9 \\
   &  $8.24\pm 0.03$&  $29\pm 15$& \ion{Fe}{xxiv} &  8.23 & $\rm 1s^2~4d~^2D_{3/2} \rightarrow 1s^2~2p~^2P_{1/2}$ & 7.3 \\
   &                &            & \ion{Ni}{xxiii}&  8.27 & $\rm 1s^2~2s^2~2p~4d~^3P_1 \rightarrow 1s^2~2s^2~2p^2~^3P_0$ & 7.1 \\
$*$&  $8.42\pm 0.02$&  $49\pm 16$& \ion{Mg}{xii}  &  8.42 & $\rm 2p~^2P_{3/2} \rightarrow 1s~^2S_{1/2}$             & 7.0 \\
   &                &            & \ion{Mg}{xii}  &  8.42 & $\rm 2p~^2P_{1/2} \rightarrow 1s~^2S_{1/2}$             & 7.0 \\
   &  $8.65\pm 0.04$&  $26\pm 14$& \ion{Fe}{xxiii}&  8.62 & $\rm 1s^2~2s~4d~^3D_3 \rightarrow 1s^2~2s~2p~^3P_2$ & 7.2 \\
   &                &            & \ion{Fe}{xxi}  &  8.61 & $\rm 1s^2~2s^2~2p_{1/2}~5d_{3/2} \rightarrow 1s^2~2s^2~2p^2~^3P_1$& 7.1 \\
   &                &            & \ion{Fe}{xxi}  &  8.64 & $\rm 1s^2~2s^2~2p~5d~^3P_2 \rightarrow 1s^2~2s^2~2p^2~^3P_1$& 7.0 \\
   &                &            & \ion{Fe}{xxi}  &  8.66 & $\rm 1s^2~2s^2~2p~5d~^3F_3 \rightarrow 1s^2~2s^2~2p^2~^3P_2$& 7.0 \\
   &  $8.92\pm 0.03$&  $21\pm 13$& \ion{Fe}{xxiii}&  8.91 & $\rm 1s^2~2s~4s~^1S_0 \rightarrow 1s^2~2s~2p~^1P_1$ & 7.2 \\
   &                &            & \ion{Fe}{xxi}  &  8.93 & $\rm 1s^2~2s~2p_{1/2}^2~5s \rightarrow 1s^2~2s~2p^3~^3D_1$ & 7.0 \\
   &  $9.21\pm 0.02$&  $43\pm 15$& \ion{Mg}{xi}   &  9.23 & $\rm 1s~2p~^3P_1 \rightarrow 1s^2~^1S_0$               & 6.8 \\
   &                &            & \ion{Fe}{xxi}  &  9.19 & $\rm 1s^2~2s~2p_{1/2}^2~4p_{3/2} \rightarrow 1s^2~2s^2~2p^2~^3P_0$ & 7.1 \\
   &                &            & \ion{Fe}{xx}   &  9.19 & $\rm 1s^2~2s~2p_{1/2}~2p_{3/2}^2~4p_{3/2} \rightarrow 2s^2~2p^3~^4S_{3/2}$ & 7.0 \\
   &  $9.35\pm 0.03$&  $24\pm 14$& \ion{Mg}{xi}   &  9.31 & $\rm 1s~2s~^3S_1 \rightarrow 1s^2~^1S_0$               & 6.8 \\
   &  $9.47\pm 0.02$&  $29\pm 15$& \ion{Fe}{xxi}  &  9.48 & $\rm 1s^2~2s^2~2p~4d~^3P_1 \rightarrow 1s^2~2s^2~2p^2~^3P_0$ & 7.0 \\
   &                &            & \ion{Ne}{x}    &  9.48 & $\rm 5p~^2P_{3/2} \rightarrow 1s~^2S_{1/2}$             & 6.8 \\ 
   &  $9.71\pm 0.02$&  $20\pm 14$& \ion{Ne}{x}    &  9.71 & $\rm 4p~^2P_{3/2} \rightarrow 1s~^2S_{1/2}$            & 6.8 \\
   &                &            & \ion{Ne}{x}    &  9.71 & $\rm 4p~^2P_{1/2} \rightarrow 1s~^2S_{1/2}$            & 6.8 \\
   &                &            & \ion{Fe}{xx}   &  9.73 & $\rm 1s^2~2s~2p_{1/2}^2~2p_{3/2}~4p_{3/2} \rightarrow 2s^2~2p^3~^4S_{3/2}$ & 7.0 \\
   &                &            & \ion{Fe}{xix}  &  9.70 & $\rm 2s^2~2p^3~(^2D)~5d~^3D_3 \rightarrow 2s^2~2p^4~^3P_2$ & 6.9 \\
   &                &            & \ion{Fe}{xx}   &  9.73 & $\rm 1s^2~2s~2p_{1/2}^2~2p_{3/2}~4p_{3/2} \rightarrow 2s^2~2p^3~^4S_{3/2}$ & 7.0 \\
   & $10.06\pm 0.02$&  $32\pm 14$& \ion{Fe}{xx}   & 10.05 & $\rm 1s^2~2s^2~2p_{1/2}~2p_{3/2}~4d_{3/2} \rightarrow 2s^2~2p^3~^4S_{3/2}$ &7.0 \\
   &                &            & \ion{Fe}{xx}   & 10.06 & $\rm 1s^2~2s^2~2p_{1/2}~2p_{3/2}~4d_{3/2} \rightarrow 2s^2~2p^3~^4S_{3/2}$ &7.0 \\
$*$& $\rm 10.20\pm 0.02$&  $39\pm 15$& \ion{Ne}{x}    & 10.24 & $\rm 3p~^2P_{3/2} \rightarrow 1s~^2S_{1/2}$            & 6.8 \\
   &                &            & \ion{Ne}{x}    & 10.24 & $\rm 3p~^2P_{1/2} \rightarrow 1s~^2S_{1/2}$            & 6.8 \\
$*$& $\rm 10.63\pm 0.01$&  $43\pm 15$& \ion{Fe}{xxiv} & 10.62 & $\rm 1s^2~3p~^2P_{3/2} \rightarrow 1s^2~2s~^2S_{1/2}$ & 7.3 \\
   &                &            & \ion{Fe}{xxiv} & 10.66 & $\rm 1s^2~3p~^2P_{1/2} \rightarrow 1s^2~2s~^2S_{1/2}$ & 7.3 \\
   &                &            & \ion{Fe}{xix}  & 10.65 & $\rm 2s^2~2p^3~(^2D)~4d~^3D_3 \rightarrow 2s^2~2p^4~^3P_2$ & 6.9 \\
   &                &            & \ion{Fe}{xix}  & 10.64 & $\rm 2s^2~2p^3~(^2D)~4d~^3P_2 \rightarrow 2s^2~2p^4~^3P_2$ & 6.9 \\
$*$& $11.05\pm 0.03$&  $22\pm 13$& \ion{Fe}{xxiv} & 11.03 & $\rm 1s^2~3d~^2D_{3/2} \rightarrow 1s^2~2p~^2P_{1/2}$ & 7.3 \\
   &                &            & \ion{Fe}{xxiii}& 11.02 & $\rm 1s^2~2s~3p~^3P_1 \rightarrow 1s^2~2s^2~^1S_0$ & 7.2 \\
   & $11.13\pm 0.03$&  $21\pm 13$& \ion{Fe}{xvii} & 11.13 & $\rm 2s^2~2p^5~(^2P)~5d~^1P_1 \rightarrow 2s^2~2p^6~^1S_0$ & 6.8 \\ 
   & $11.36\pm 0.02$&  $28\pm 13$& \ion{Fe}{xviii}& 11.33 & $\rm 2s^2~2p^4~(^1D)~4d~^2D_{5/2} \rightarrow 2s^2~2p^5~^2P_{3/2}$ & 6.9 \\
   &                &            & \ion{Fe}{xviii}& 11.33 & $\rm 2s^2~2p^4~(^1D)~4d~^2P_{3/2} \rightarrow 2s^2~2p^5~^2P_{3/2}$ & 6.9 \\
   &                &            & \ion{Fe}{xviii}& 11.33 & $\rm 2s^2~2p^4~(^1D)~4d~^2S_{1/2} \rightarrow 2s^2~2p^5~^2P_{3/2}$ & 6.9 \\
   &                &            & \ion{Fe}{xxiii}& 11.34 & $\rm 1s^2~2s~3d~^3D_2 \rightarrow 1s^2~2s~2p~^3P_1$ & 7.2 \\
   &                &            & \ion{Ni}{xxi}  & 11.32 & $\rm 2s^2~2p^3~(^2D)~3d~^3D_3 \rightarrow 2s^2~2p^4~^3P_2$ & 7.0 \\
   & $11.46\pm 0.02$&  $25\pm 13$& \ion{Fe}{xxiv} & 11.43 & $\rm 1s^2~3s~^2S_{1/2} \rightarrow 1s^2~2p~^2P_{3/2}$ & 7.3 \\
   &                &            & \ion{Fe}{xxii} & 11.49 & $\rm 1s^2~2s~2p_{1/2}~3p_{3/2} \rightarrow 1s^2~2s^2~2p~^2P_{1/2}$ & 7.1 \\
   &                &            & \ion{Fe}{xxiii}& 11.46 & $\rm 1s^2~2s~3d~^3D_3 \rightarrow 1s^2~2s~2p~^3P_2$ & 7.2 \\
$*$& $11.75\pm 0.02$&  $40\pm 13$& \ion{Fe}{xxiii}& 11.74 & $\rm 1s^2~2s~3d~^1D_2 \rightarrow 1s^2~2s~2p~^1P_1$ & 7.2 \\
   &                &            & \ion{Fe}{xxii} & 11.77 & $\rm 1s^2~2s^2~3d~^2D_{3/2} \rightarrow 1s^2~2s^2~2p~^2P_{1/2}$ & 7.1 \\
   & $11.94\pm 0.03$&  $19\pm 12$& \ion{Fe}{xxii} & 11.98 & $\rm 1s^2~2s^2~3d~^2D_{3/2} \rightarrow 1s^2~2s^2~2p~^2P_{3/2}$ & 7.1 \\
   &                &            & \ion{Fe}{xxi}  & 11.98 & $\rm 1s^2~2s~2p_{1/2}^2~3p_{3/2} \rightarrow 1s^2~2s^2~2p^2~^3P_0$ & 7.0 \\
   &                &            & \ion{Fe}{xxii} & 11.93 & $\rm 1s^2~2s^2~3d~^2D_{5/2} \rightarrow 1s^2~2s^2~2p~^2P_{3/2}$ & 7.1 \\
   &                &            & \ion{Fe}{xxi}  & 11.95 & $\rm 1s^2~2s~2p_{1/2}~2p_{3/2}~3p_{3/2} \rightarrow 1s^2~2s^2~2p^2~^3P_0$ & 7.0 \\
$*$& $12.16\pm 0.01$& $100\pm 17$& \ion{Ne}{x}    & 12.13 & $\rm 2p~^2P_{3/2} \rightarrow 1s~^2S_{1/2}$ & 6.8 \\
   &                &            & \ion{Ne}{x}    & 12.14 & $\rm 2p~^2P_{1/2} \rightarrow 1s~^2S_{1/2}$ & 6.8 \\
   &                &            & \ion{Fe}{xvii} & 12.12 & $\rm 2s^2~2p^5~(^2P)~4d~^1P_1 \rightarrow 2s^2~2p^6~^1S_0$ & 6.8 \\
   &                &            & \ion{Fe}{xxiii}& 12.16 & $\rm 1s^2~2s~3s~^1S_0 \rightarrow 1s^2~2s~2p~^1P_1$ & 7.2 \\
$*$& $12.31\pm 0.01$&  $54\pm 15$& \ion{Fe}{xxi}  & 12.28 & $\rm 1s^2~2s^2~2p~3d~^3D_1 \rightarrow 1s^2~2s^2~2p^2~^3P_0$ & 7.0 \\
   & $12.68\pm 0.02$&  $26\pm 13$& \ion{Fe}{xxi}  & 12.65 & $\rm 1s^2~2s~2p_{1/2}~2p_{3/2}~3d_{5/2} \rightarrow 1s^2~2s~2p^3~^3S_1$ & 7.0 \\
   &                &            & \ion{Ni}{xix}  & 12.66 & $\rm 2s^2~2p^5~(^2P)~3d~^3D_1 \rightarrow 2s^2~2p^6~^1S_0$ & 6.9 \\
   &                &            & \ion{Fe}{xvii} & 12.70 & $\rm 2s^2~2p^5~(^2P)~4s~^3P_1 \rightarrow 2s^2~2p^6~^1S_0$ & 6.8 \\
   &                &            & \ion{Fe}{xxii} & 12.63 & $\rm 1s^2~2s~2p_{1/2}~3d_{5/2} \rightarrow 1s^2~2s~2p^2~^2P_{3/2}$ & 7.1 \\
$*$& $12.80\pm 0.02$&  $36\pm 13$& \ion{Fe}{xx}   & 12.82 & $\rm 1s^2~2s^2~2p_{1/2}~2p_{3/2}~3d_{3/2} \rightarrow 2s^2~2p^3~^4S_{3/2}$ & 7.0 \\
   &                &            & \ion{Fe}{xxii} & 12.75 & $\rm 1s^2~2s~2p_{1/2}~3s \rightarrow 1s^2~2s~2p^2~^2D_{3/2}$ & 7.1 \\ 
   &                &            & \ion{Fe}{xxi}  & 12.82 & $\rm 1s^2~2s~2p_{1/2}~2p_{3/2}~3d_{5/2} \rightarrow 1s^2~2s~2p^3~^3D_1$ & 7.0 \\
   & $12.95\pm 0.01$&  $46\pm 13$& \ion{Fe}{xx}   & 12.97 & $\rm 1s^2~2s^2~2p_{1/2}~2p_{3/2}~3d_{3/2} \rightarrow 2s^2~2p^3~^4S_{3/2}$ & 7.0 \\
   &                &            & \ion{Fe}{xx}   & 12.91 & $\rm 1s^2~2s^2~2p_{1/2}~2p_{3/2}~3d_{5/2} \rightarrow 2s^2~2p^3~^4S_{3/2}$ & 7.0 \\
   &                &            & \ion{Fe}{xxii} & 12.95 & $\rm 1s^2~2s~2p_{1/2}~3s \rightarrow 1s^2~2s~2p^2~^2S_{1/2}$ & 7.1 \\
   &                &            & \ion{Fe}{xix}  & 12.93 & $\rm 1s^2~2s~2p_{1/2}~2p_{3/2}^3~3p_{3/2} \rightarrow 2s^2~2p^4~^3P_2$ & 6.9 \\
   & $13.25\pm 0.02$&  $25\pm 12$& \ion{Fe}{xxi}  & 13.25 & $\rm 1s^2~2s^2~2p_{1/2}~3s \rightarrow 1s^2~2s^2~2p^2~^3P_2$ & 7.0 \\
   &                &            & \ion{Fe}{xxii} & 13.24 & $\rm 1s^2~2s^2~3p~^2P_{1/2} \rightarrow 1s^2~2s~2p^2~^2D_{3/2}$ & 7.1 \\
   &                &            & \ion{Fe}{xx}   & 13.27 & $\rm 1s^2~2s^2~2p_{1/2}~2p_{3/2}~3d_{3/2} \rightarrow 2s^2~2p^3~^2P_{1/2}$ & 7.0 \\
   &                &            & \ion{Fe}{xx}   & 13.27 & $\rm 1s^2~2s^2~2p_{1/2}~2p_{3/2}~3d_{5/2} \rightarrow 2s^2~2p^3~^2P_{1/2}$ & 7.0 \\
   &                &            & \ion{Fe}{xix}  & 13.27 & $\rm 2s^2~2p^3~(^2P)~3d~^3D_3 \rightarrow 2s^2~2p^4~^3P_2$ & 6.9 \\
   & $13.34\pm 0.03$&  $18\pm 12$& \ion{Fe}{xx}   & 13.35 & $\rm 1s^2~2s^2~2p_{1/2}^2~3d_{3/2} \rightarrow 2s^2~2p^3~^2D_{3/2}$ & 7.0 \\
   &                &            & \ion{Fe}{xx}   & 13.39 & $\rm 2s~2p^3~(^5S)~3d~^4D_{7/2} \rightarrow 2s~2p^4~^4P_{5/2}$ & 6.9 \\
   &                &            & \ion{Fe}{xviii}& 13.32 & $\rm 2s~2p^5~(^3P)~3p~^4P_{5/2} \rightarrow 2s^2~2p^5~^2P_{3/2}$ & 6.9 \\
   &                &            & \ion{Fe}{xviii}& 13.36 & $\rm 2s~2p^5~(^3P)~3p~^2P_{3/2} \rightarrow 2s^2~2p^5~^2P_{3/2}$ & 6.9 \\
$*$& $13.47\pm 0.03$&  $21\pm 13$& \ion{Ne}{ix}   & 13.45 & $\rm 1s~2p~^1P_1 \rightarrow 1s^2~^1S_0$ & 6.6 \\
   &                &            & \ion{Fe}{xix}  & 13.46 & $\rm 2s^2~2p^3~(^2D)~3d~^3S_1 \rightarrow 2s^2~2p^4~^3P_2$ & 6.9 \\
   &                &            & \ion{Fe}{xix}  & 13.42 & $\rm 2s^2~2p^3~(^2D)~3d~^1F_3 \rightarrow 2s^2~2p^4~^3P_2$ & 6.9 \\
$*$& $13.52\pm 0.02$&  $35\pm 14$& \ion{Fe}{xix}  & 13.52 & $\rm 2s^2~2p^3~(^2D)~3d~^3D_3 \rightarrow 2s^2~2p^4~^3P_2$ & 6.9 \\
   &                &            & \ion{Fe}{xxi}  & 13.51 & $\rm 1s^2~2s~2p_{1/2}^2~3s \rightarrow 1s^2~2s~2p^3~^3D_1$ & 7.0 \\
   &                &            & \ion{Fe}{xix}  & 13.50 & $\rm 1s^2~2s^2~2p_{1/2}~2p_{3/2}^2~3d_{3/2} \rightarrow 2s^2~2p^4~^3P_2$ & 6.9 \\
   & $13.69\pm 0.02$&  $30\pm 14$& \ion{Ne}{ix}   & 13.70 & $\rm 1s~2s~^3S_1 \rightarrow 1s^2~^1S_0$ & 6.6 \\
   &                &            & \ion{Fe}{xix}  & 13.65 & $\rm 2s^2~2p^3~(^2D)~3d~^3F_3 \rightarrow 2s^2~2p^4~^3P_2$ & 6.9 \\
   &                &            & \ion{Fe}{xix}  & 13.73 & $\rm 1s^2~2s^2~2p_{1/2}~2p_{3/2}^2~3d_{5/2} \rightarrow 2s^2~2p^4~^3P_1$ & 6.9 \\
   &                &            & \ion{Fe}{xix}  & 13.68 & $\rm 1s^2~2s^2~2p_{1/2}~2p_{3/2}^2~3d_{3/2} \rightarrow 2s^2~2p^4~^3P_1$ & 6.9 \\
   & $13.81\pm 0.01$&  $52\pm 14$& \ion{Fe}{xix}  & 13.80 & $\rm 1s^2~2s^2~2p_{1/2}~2p_{3/2}^2~3d_{5/2} \rightarrow 2s^2~2p^4~^3P_2$ & 6.9 \\
   &                &            & \ion{Fe}{xvii} & 13.82 & $\rm 2s~2p^6~3p~^1P_1 \rightarrow 2s^2~2p^6~^1S_0$ & 6.8 \\
   &                &            & \ion{Fe}{xix}  & 13.76 & $\rm 2s^2~2p^3~(^2D)~3d~^3S_1 \rightarrow 2s^2~2p^4~^1D_2$ & 6.9 \\
   &                &            & \ion{Fe}{xx}   & 13.77 & $\rm 2s^2~2p^2~(^3P)~3s~^4P_{5/2} \rightarrow 2s^2~2p^3~^4S_{3/2}$ & 7.0 \\
   &                &            & \ion{Ni}{xix}  & 13.78 & $\rm 2s^2~2p^5~(^2P)~3s~^1P_1 \rightarrow 2s^2~2p^6~^1S_0$ & 6.8 \\
   & $13.98\pm 0.02$&  $40\pm 14$& \ion{Fe}{xx}   & 13.96 & $\rm 2s^2~2p^2~(^3P)~3s~^4P_{1/2} \rightarrow 2s^2~2p^3~^4S_{3/2}$ & 7.0 \\
   &                &            & \ion{Fe}{xviii}& 13.95 & $\rm 2s^2~2p^4~(^1S)~3d~^2D_{5/2} \rightarrow 2s^2~2p^5~^2P_{3/2}$ & 6.9 \\ 
   &                &            & \ion{Fe}{xix}  & 13.95 & $\rm 1s^2~2s^2~2p_{1/2}^2~2p_{3/2}~3d_{3/2} \rightarrow 2s^2~2p^4~^3P_2$ & 6.9 \\
   &                &            & \ion{Fe}{xix}  & 13.96 & $\rm 1s^2~2s^2~2p_{1/2}^2~2p_{3/2}~3d_{3/2} \rightarrow 2s^2~2p^4~^3P_2$ & 6.9 \\
   & $14.05\pm 0.01$&  $51\pm 15$& \ion{Fe}{xxi}  & 14.01 & $\rm 1s^2~2s^2~2p_{1/2}~3p_{1/2} \rightarrow 1s^2~2s~2p^3~^3D_1$ & 7.0 \\
   &                &            & \ion{Ni}{xix}  & 14.04 & $\rm 2s^2~2p^5~(^2P)~3s~^3P_1 \rightarrow 2s^2~2p^6~^1S_0$ & 6.8 \\
   &                &            & \ion{Ni}{xix}  & 14.08 & $\rm 2s^2~2p^5~(^2P)~3s~^3P_2 \rightarrow 2s^2~2p^6~^1S_0$ & 6.8 \\
   &                &            & \ion{Fe}{xix}  & 14.07 & $\rm 1s^2~2s~2p_{1/2}^2~2p_{3/2}^2~3d_{3/2} \rightarrow 2s~2p^5~^3P_2$ & 6.9 \\
$*$& $14.22\pm 0.01$&  $92\pm 17$& \ion{Fe}{xviii}& 14.21 & $\rm 1s^2~2s^2~2p_{1/2}~2p_{3/2}^3~3d_{5/2} \rightarrow 2s^2~2p^5~^2P_{3/2}$ & 6.9 \\
   &                &            & \ion{Fe}{xviii}& 14.21 & $\rm 2s^2~2p^4~(^1D)~3d~^2D_{5/2} \rightarrow 2s^2~2p^5~^2P_{3/2}$ & 6.9 \\
   &                &            & \ion{Fe}{xx}   & 14.27 & $\rm 1s^2~2s~2p_{1/2}^2~2p_{3/2}~3s \rightarrow 2s~2p^4~^4P_{5/2}$ & 7.0 \\
   &                &            & \ion{Fe}{xviii}& 14.26 & $\rm 2s^2~2p^4~(^1D)~3d~^2S_{1/2} \rightarrow 2s^2~2p^5~^2P_{3/2}$ & 6.9 \\
   & $14.35\pm 0.02$&  $42\pm 15$& \ion{Fe}{xviii}& 14.34 & $\rm 2s^2~2p^4~(^1D)~3d~^2P_{1/2} \rightarrow 2s^2~2p^5~^2P_{1/2}$ & 6.9 \\
   &                &            & \ion{Fe}{xviii}& 14.34 & $\rm 2s^2~2p^4~(^1D)~3d~^2D_{3/2} \rightarrow 2s^2~2p^5~^2P_{1/2}$ & 6.9 \\
   &                &            & \ion{Fe}{xx}   & 14.33 & $\rm 1s^2~2s^2~2p_{3/2}^2~3p_{3/2} \rightarrow 2s~2p^4~^4P_{5/2}$ & 7.0 \\
   & $14.42\pm 0.02$&  $26\pm 14$& \ion{Fe}{xviii}& 14.37 & $\rm 2s^2~2p^4~(^3P)~3d~^2D_{5/2} \rightarrow 2s^2~2p^5~^2P_{3/2}$ & 6.9 \\
   &                &            & \ion{Fe}{xx}   & 14.42 & $\rm 1s^2~2s~2p_{1/2}^2~2p_{3/2}~3s \rightarrow 2s~2p^4~^4P_{3/2}$ & 7.0 \\
   &                &            & \ion{Fe}{xviii}& 14.43 & $\rm 1s^2~2s^2~2p_{1/2}~2p_{3/2}^3~3d_{5/2} \rightarrow 2s^2~2p^5~^2P_{1/2}$ & 6.9 \\
   & $14.53\pm 0.02$&  $39\pm 14$& \ion{Fe}{xviii}& 14.53 & $\rm 2s^2~2p^4~(^3P)~3d~^2F_{5/2} \rightarrow 2s^2~2p^5~^2P_{3/2}$ & 6.9 \\
   &                &            & \ion{Fe}{xviii}& 14.57 & $\rm 2s^2~2p^4~(^3P)~3d~^4P_{3/2} \rightarrow 2s^2~2p^5~^2P_{3/2}$ & 6.9 \\
   &                &            & \ion{Fe}{xviii}& 14.51 & $\rm 1s^2~2s^2~2p_{1/2}^2~2p_{3/2}^2~3d_{3/2} \rightarrow 2s^2~2p^5~^2P_{3/2}$ & 6.8 \\
   & $14.64\pm 0.02$&  $36\pm 14$& \ion{Fe}{xix}  & 14.66 & $\rm 2s^2~2p^3~(^2D)~3s~^3D_3 \rightarrow 2s^2~2p^4~^3P_2$ & 6.9 \\
   &                &            & \ion{Fe}{xviii}& 14.62 & $\rm 2s^2~2p^4~(^3P)~3d~^2P_{3/2} \rightarrow 2s^2~2p^5~^2P_{1/2}$ & 6.8 \\
$*$& $14.93\pm 0.02$&  $26\pm 15$& \ion{Fe}{xix}  & 14.96 & $\rm 2s^2~2p^3~(^4S)~3s~^3S_1 \rightarrow 2s^2~2p^4~^3P_2$ & 6.9 \\
   &                &            & \ion{Fe}{xx}   & 14.92 & $\rm 1s^2~2s^2~2p_{1/2}~2p_{3/2}~3p_{3/2} \rightarrow 2s~2p^4~^4P_{3/2}$ & 7.0 \\
   &                &            & \ion{Fe}{xx}   & 14.97 & $\rm 1s^2~2s^2~2p_{1/2}~2p_{3/2}~3p_{3/2} \rightarrow 2s~2p^4~^4P_{1/2}$ & 7.0 \\
   &                &            & \ion{Fe}{xx}   & 14.95 & $\rm 1s^2~2s^2~2p_{1/2}~2p_{3/2}~3p_{1/2} \rightarrow 2s~2p^4~^4P_{5/2}$ & 7.0 \\
$*$& $15.03\pm 0.01$& $152\pm 19$& \ion{Fe}{xvii} & 15.01 & $\rm 2s^2~2p^5~(^2P)~3d~^1P_1 \rightarrow 2s^2~2p^6~^1S_0$ & 6.7 \\
   &                &            & \ion{Fe}{xix}  & 15.08 & $\rm 2s^2~2p^3~(^4S)~3s~^5S_2 \rightarrow 2s^2~2p^4~^3P_2$ & 6.9 \\ 
$*$& $15.20\pm 0.01$&  $32\pm 14$& \ion{Fe}{xix}  & 15.20 & $\rm 1s^2~2s~2p_{1/2}^2~2p_{3/2}^2~3s \rightarrow 2s~2p^5~^3P_2$ & 6.9 \\
   &                &            & \ion{O}{viii}  & 15.18 & $\rm 4p~^2P_{1/2} \rightarrow 1s~^2S_{1/2}$ & 6.5 \\
   &                &            & \ion{O}{viii}  & 15.18 & $\rm 4p~^2P_{3/2} \rightarrow 1s~^2S_{1/2}$ & 6.5 \\
   & $15.28\pm 0.01$&  $40\pm 14$& \ion{Fe}{xvii} & 15.26 & $\rm 2s^2~2p^5~(^2P)~3d~^3D_1 \rightarrow 2s^2~2p^6~^1S_0$ & 6.7 \\
   & $15.45\pm 0.01$&  $35\pm 13$& \ion{Fe}{xvii} & 15.45 & $\rm 2s^2~2p^5~(^2P)~3d~^3P_1 \rightarrow 2s^2~2p^6~^1S_0$ & 6.7 \\
   &                &            & \ion{Fe}{xix}  & 15.47 & $\rm 1s^2~2s~2p_{1/2}^2~2p_{3/2}^2~3s \rightarrow 2s~2p^5~^3P_2$ & 6.9 \\
$*$& $15.61\pm 0.02$&  $26\pm 12$& \ion{Fe}{xviii}& 15.62 & $\rm 2s^2~2p^4~(^1D)~3s~^2D_{5/2} \rightarrow 2s^2~2p^5~^2P_{3/2}$ & 6.8 \\
$*$& $16.02\pm 0.01$&  $56\pm 15$& \ion{O}{viii}  & 16.01 & $\rm 3p~^2P_{1/2} \rightarrow 1s~^2S_{1/2}$ & 6.5 \\
   &                &            & \ion{O}{viii}  & 16.01 & $\rm 3p~^2P_{3/2} \rightarrow 1s~^2S_{1/2}$ & 6.5 \\
   &                &            & \ion{Fe}{xviii}& 16.00 & $\rm 2s^2~2p^4~(^3P)~3s~^2P_{3/2} \rightarrow 2s^2~2p^5~^2P_{3/2}$ & 6.8 \\
$*$& $16.10\pm 0.02$&  $44\pm 14$& \ion{Fe}{xviii}& 16.07 & $\rm 2s^2~2p^4~(^3P)~3s~^4P_{5/2} \rightarrow 2s^2~2p^5~^2P_{3/2}$  & 6.8 \\
   &                &            & \ion{Fe}{xix}  & 16.11 & $\rm 21s^2~2s^2~2p_{1/2}~2p_{3/2}^2~3p_{1/2} \rightarrow 2s~2p^5~^3P_2$ & 6.9 \\
   & $16.33\pm 0.02$&  $22\pm 11$& \ion{Fe}{xviii}& 16.32 & $\rm 2s~2p^5~3s~^2P_{3/2} \rightarrow 2s~2p^6~^2S_{1/2}$ & 6.8 \\
   &                &            & \ion{Fe}{xvii} & 16.35 & $\rm 2s^2~2p^5~(^2P)~3p~^3D_2 \rightarrow 2s^2~2p^6~^1S_0$ & 6.7 \\
   &                &            & \ion{Fe}{xix}  & 16.34 & $\rm 1s^2~2s^2~2p_{1/2}~2p_{3/2}^2~3p_{1/2} \rightarrow 2s~2p^5~^3P_2$ & 6.9 \\
$*$& $16.78\pm 0.01$&  $60\pm 13$& \ion{Fe}{xvii} & 16.78 & $\rm 2s^2~2p^5~(^2P)~3s~^1P_1 \rightarrow 2s^2~2p^6~^1S_0$ & 6.7 \\
$*$& $17.06\pm 0.01$&  $73\pm 14$& \ion{Fe}{xvii} & 17.05 & $\rm 2s^2~2p^5~(^2P)~3s~^3P_1 \rightarrow 2s^2~2p^6~^1S_0$ & 6.7 \\
   &                &            & \ion{Fe}{xvii} & 17.10 & $\rm 2s^2~2p^5~(^2P)~3s~^3P_2 \rightarrow 2s^2~2p^6~^1S_0$ & 6.7 \\
$*$& $18.99\pm 0.01$&  $66\pm 14$& \ion{O}{viii}  & 18.97 & $\rm 2p~^2P_{1/2} \rightarrow 1s~^2S_{1/2}$ & 6.5 \\
   &                &            & \ion{O}{viii}  & 18.97 & $\rm 2p~^2P_{3/2} \rightarrow 1s~^2S_{1/2}$ & 6.5 \\ 
   \hline
\end{tabular}   
\end{table}