\begin{table}%t2
\caption{\label{sandint2}General and instrument-specific parameters of the data-reduction algorithms of {\textsc{p}3\textsc{d}}.}
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\begin{tabular}{ll@{\hspace{10pt}}c@{\hspace{10pt}}cc@{\hspace{15pt}}cc@{\hspace{15pt}}l}
\hline\hline \noalign{\smallskip}
Step & Property & \multicolumn{1}{c}{All} & \multicolumn{2}{c}{PMAS} & \multicolumn{1}{c}{VIRUS-P} & \multicolumn{1}{c}{SPIRAL} & Parameter name in {\textsc{p}3\textsc{d}}\\
&&&\multicolumn{1}{c}{LARR}&\multicolumn{1}{c}{PPAK}&\multicolumn{1}{c}{bundle~1/bundle~2}&\multicolumn{1}{c}{both arms}\\
\hline
\multicolumn{8}{l}{Automatic tracing algorithm, cf.~Sect.~\ref{sec:drtracing}:}\\
    & $n$                  && 256\phd\phn    &  382\phd\phn & 246\phd\phn  & 512\phd\phn\phn & \textsc{spnum}\\
1a  & $\left(n_{\rm p}-1\right){\rm bin}_\lambda/2$ &&  \phn40\phd\phn    &   \phn40\phn\phd &  \phn29\phn\phd  &  \phn30\phn\phn\phd & \textsc{findwidth\_tr}\\
    & $\xi$                && \phn\phn0.9    &  \phn\phn0.9 &  \phn\phn0.9 &  \phn\phn0.95 & \textsc{cut\_tr}\\
1b  & $d~{\rm bin}_\dagger$ && \phn12.5 &  \phn\phn9.5 &  \phn\phn8.0 &  \phn\phn4.0\phn & \textsc{dist\_tr}\\
    & $\delta_{\rm min}{\rm bin}_\dagger$ &&  \phn\phn4.0 &  \phn\phn3.0 &  \phn\phn2.0 &  \phn\phn1.0\phn & \textsc{dmin\_tr}\\
    & $\delta_{\rm max}{\rm bin}_\dagger$ &&  \phn\phn5.5 &  \phn\phn4.0 &  \phn\phn4.0 &  \phn\phn2.5\phn & \textsc{dmax\_tr}\\
1c  & $\left(w_{\rm cc}-1\right){\rm bin}_\dagger/2$ &\phn2\phd\phn& \multicolumn{4}{l}{\phn} & \textsc{centervar\_tr}\\ 
    & $G_{\rm w}{\rm bin}_\dagger$ && \phn\phn4.0 & \phn\phn4.5 & 5.0/4.2  & \phn\phn2.3\phn & \textsc{fwhm\_tr}\\
    & $n_{\rm it}$ & \phn9\phd\phn & \multicolumn{4}{l}{\phn} & \textsc{niterat\_tr}\\
2   & $f$ & 10\phd\phn & \multicolumn{4}{l}{\phn} & \textsc{refinddist\_tr}\\
    & $\left(w_{\rm a}-1\right){\rm bin}_\lambda/2$ &10\phd\phn&  \multicolumn{4}{l}{\phn} & \textsc{refindwidth\_tr}\\
    & $\left(w_{\rm c}-1\right)/2$ &10\phd\phn&  \multicolumn{4}{l}{\phn} & \textsc{smowidth\_tr}\\
    & $\left(w_{\rm d}-1\right)/2$ &\phn5\phd\phn&  \multicolumn{4}{l}{\phn} & \textsc{dispsmowidth\_tr}\\[1.0ex]
\multicolumn{8}{l}{Spectrum extraction, cf.~Sects.~\ref{sec:drspap}--\ref{sec:drspmpd}:}\\
    & $\left(x_{\rm w}-1\right){\rm bin}_\dagger/2$ && \phn\phn6.0 & \phn\phn4.5 & 3.4/3.3 & \phn\phn1.5\phn & \textsc{profwidth\_ex}\\
    & $\left(\overline{x}_{\rm w}-1\right){\rm bin}_\dagger/2$ && \phn\phn8.0 & \phn\phn8.0 & \phn\phn8.0 & \phn\phn5.0\phn & \textsc{profwidth\_ctex}\\
    & $n_{{\rm mpd}}$ & \phn1\phd\phn & \multicolumn{4}{l}{\phn} & \textsc{mpdnprof}\\[1.0ex]
\multicolumn{8}{l}{Line profile fitting, cf.~Sects.~\ref{sec:drspmop}, \ref{sec:drspmpd}:}\\
    & $m_l$                           && \phn16\phd\phn & 31--32 & 21--44/14--29 & \phn32\phd\phn\phn & \textsc{lprofn\_tr}\\
    & $n_{\rm f}{\rm bin}_\lambda$ && \phn42\phd\phn &   \phn12\phd\phn   &   104\phd\phn  & \phn22\phd\phn\phn  & \textsc{lprofdint\_tr}\\[1.0ex]
\multicolumn{8}{l}{Dispersion mask creation, cf.~Sect.~\ref{sec:drwavecal}:}\\
    & $p$ & \phn4\phd\phn & \multicolumn{4}{c}{\phn} & \textsc{polynomialorder\_dm}\\
    & $\left(s_{\rm w}-1\right){\rm bin}_\lambda/2$ & \phn4\phd\phn & \multicolumn{4}{l}{\phn} & \textsc{linewidth\_dm}\\[1.0ex]
\multicolumn{8}{l}{Flat fielding, cf.~Sect.~\ref{sec:drflatfield}:}\\
    & $\left(w_{\rm ff}-1\right){\rm bin}_\lambda/2$ & 20\phd\phn&  \multicolumn{4}{l}{\phn} & \textsc{smowidth\_ff}\\
    & $p_{\rm ff}$ & \phn7\phd\phn  & \multicolumn{4}{l}{} & \textsc{deg\_polyfit\_ff}\\[1.0ex]
\hline
\end{tabular}
\tablefoot {Except for the dimensionless properties $n$, $\xi$, $n_{\rm it}$, $m_l$, $n_{\rm f}$, $p$, and $p_{\rm ff}$ the unit is pixels. Column~3: default values of general parameters. Last column: the~name as it is specified in the instrument-specific parameter file of the program code.}
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\end{table}