\begin{table}%tA.2
%\centering
\par
\caption{Observable spectral lines in red and blue channel.  $^a$
Wavelengths, \citet{pierce+breckinridge1974}.  $^b$  Effective Land\'e
factor, \citet{solanki+pantellini+stenflo1987}. $^c$ Height of line core formation above $\tau_{\rm 500nm}=1$. $^d$ all values in this section from J. Bruls
(personal note).  $^e$ Values from H. Schleicher (personal note). $^f$ \citet{nave+etal1994}.\label{tab_2}}
\begin{tabular}{lcccc} 
\hline  \hline % c
Element & $\lambda$ & Transition & $g_j$ & $\Delta h^{c}$ \\
 % & $h_{max}^{\rm c}$ \\
 & $[$nm$]$ & $^{2S+1}L_{J}$ & & $[$km$]$   \\ \hline %  & $[$km$]$
\multicolumn{5}{c}{\rule[-2mm]{0mm}{6mm} Solar absorption lines$^{d}$, CCD 2} \\ \hline 
\ion{Ca}{ii} H & 396.849 & $^2$S$_{0.5} {-} ^2$P$_{0.5}$ & 1.33 &1480--2130\\ %  & 1725  \\
Fe~I & 396.452 & $^3$P$_{1} {-} ^5$P$_{2}$ & 2.00 & 110--320\\ % & 180\\ 
Fe~I$^{f}$ & 396.551 & $^5$D$_{3} {-} ^5$D$_{4}$ & & -- \\ %& -\\
Fe~I & 396.607 & $^3$F$_{2} {-} ^3$D$_{3}$ & 2.00 & 350--520\\ % & 450\\
Fe~I$^{f}$ & 396.665 & $^5$D$_{0} {-} ^5$F$_{1}$ & & --\\ % & - \\ 
Fe~I$^{f}$ & 396.681 & $^3$D$_{2} {-} ^5$F$_{1}$ & & --\\ % & - \\ 
Fe~I & 396.745 & $^3$H$_{4} {-} ^1$G$_{3}$ & 0.75 & 270--450\\ % & 350\\
Fe~I & 396.792 & $^5$D$_{3} {-} ^3$G$_{4}$ & 1.00 & 280--510\\ % & 350\\
Fe~I & 396.918 & $^3$F$_{4} {-} ^3$F$_{3}$ & 1.50 & 510--630\\ % & 560\\
Fe~I$^{f}$ & 396.963 & $^3$D$_{3} - ^3$H$_{4}$ &  &--\\\hline  % - & - \\\hline 
\multicolumn{5}{c}{\rule[-2mm]{0mm}{6mm} Solar absorption lines, CCD 1} \\ \hline
Fe~I & 630.151$^{a}$ & $^5$P$_{2} - ^5$D$_{2} $&
1.67$^{b}$ & 300-500$^{e}$\\ % & 390$^{\rm e}$  \\
Fe~I & 630.250$^{a}$ & $^5$P$_{1} - ^5$D$_{0} $& 2.50 & 200--460$^{e}$\\ % & 310$^{\rm e}$ \\
Fe~I & 630.346 & $^5$G$_{6} - ^5$G$_{5} $& & --\\
Ti~I & 630.375 &  $^3$F$_{3} - ^3$G$_{3}$ & &\\ \hline % &\\ \hline
\multicolumn{5}{c}{\rule[-2mm]{0mm}{6mm} Telluric absorption lines, CCD 1}\\ \hline
O$_2$ & 630.200$^{a}$  & - & - & earth atm.\\ % & -   \\
O$_2$ & 630.276$^{a}$  & - & - & earth atm.\\ \hline 
\end{tabular}
\end{table}