\begin{table}%t2 \caption{\label{tab3_hrdata}Summary of the AMBER observations of \object{IRC+10420} and the calibrator star HD~232078 in high-spectral resolution mode from Oct 14, 2008 using the UT telescope configuration UT1-UT2-UT4.} %\centerline {\begin{tabular}{lccccc} \hline \noalign{\smallskip} ${\rm object}$& ${\rm UTC}$& $N_{\rm frames}$& $B_{\rm p}$ & PA & ${\rm seeing}$\\ & & & [{\rm m}] & $[\degr]$ & $[\arcsec]$ \\ \noalign{\smallskip} \hline \noalign{\smallskip} ${\rm \irc}$ & 00:26:40 & 125 & 54--129 & 36--75 & 0.9\\ ${\rm HD~232078}$ & 00:03:59 & 125 & 51--130 & 37--78 & 1.1\\ \hline \end{tabular}} \medskip \par All measurements were carried out using the fringe tracker FINITO and with an exposure time of 3~s. The uniform-disk diameter of HD~232078 (spectral type K3IIp), $d_{\rm UD} = 0.74\pm0.1$~mas, was taken from the CHARM2 catalogue \citep{charm2}. $N_{\rm frames}$ is the total number of recorded frames. For the meaning of the other columns, see Table~\ref{tab1_lrdata}. \end{table}