\begin{table}%t1
%\centering
\par
\caption{\label{rvel_tab1}Radial velocities of the  UV emission lines (in units of km~s$^{-1}$) for AX~Per, SY Mus and RW Hya.}
\begin{tabular}{lccccccccccc}
\hline \hline \noalign{\smallskip}
MJD & $\phi$ & \ion{Si}{iii}] & \ion{C}{iii}] &  \ion{N}{iii}] & \ion{O}{iii}]&  \ion{N}{iv}] & \ion{O}{iv}] &  \ion{Si}{iv} & \ion{C}{iv}  &
\ion{N}{v} &  \ion{He}{ii} \\
IP~[eV] & & 16.3 & 24.4 & 29.6 & 35.1 & 47.4 & 54.1 & 33.5 & 47.5 & 77.5 & 54.4 \\
\hline
\multicolumn{12}{c}{AX Per} \\
%\hline
44~156 & 0.000 & --123 & --121& --120(2) & --124(2) & & & --106 & --105(2)& & --113 \\
45~642 & 0.183 & --137 & {\it --131} & --134(1) & --136(5) & --135 & --135 & & --107(4) & --111(1) & --137 \\
48~226 & 0.979 & --111 & --110 & --116(2) & --111(2) & --111 & & --104(2) & --103(2) & & --113 \\
\hline
\multicolumn{12}{c}{SY Mus} \\
%\hline
44~767 & 0.340 & {\it 7} & {\it 15} & 7 & 9(1) & {\it 8} & 13 & 19(1) & {\it 22(2)} & 16(3) & 3 \\
45~020 & 0.746 & & --6 & & & --10 & & & 20(1) & & 2\\
48~451 & 0.240 & 9 & 10 & & 2(1) & 7 & & &23(2) & & --6 \\
48~473 & 0.275 & 14 & 19 & 14 & 13(1) & 10 & & 26 & 27(1) & 28 & 3 \\
48~629 & 0.525 & 16 & 16 & 16(1) & 16(1) & 13 & & 21(1) & 23(1) & 22(4) & 12\\
48~623 & 0.675 & 11 & 14 & 9 & 11(1) & 13 & & 18(2) & 23(1) & 21(1) & 8 \\
50~187 & 0.018 & 0 & 5 & --15 & --2 & --5 & & & 23(1) & & -3\\
\hline
\multicolumn{12}{c}{RW Hya} \\
%\hline
44118 & 0.437 & 10 &11 & 3 & 2(1) & {\it --8} & --3(2) & 17(1) & {\it 26(3)} & 19(1) & --26 \\
44~256 & 0.809 & 7 & 6 & 7 & 6(2) & {\it 8} & 32(2) & 24 & 36(1) & 32(7) & 34 \\
44~692 & 0.987 & 14 & 23 & 17 & 18(1) & 24 & 47(1) & & 45(3) & & 55 \\
52~012\tablefootmark{*} & 0.749 & & & & 11.9(0.5) & 17.7 & 35.3(0.1) & 29.0(1.0) & 40.0(1.2) &  46.5 (0.4) &   40.4\\
52~016\tablefootmark{*}   & 0.760 & & & & 8.7(0.3) & 16.1 & 34.0(0.5) & 29.4(0.4) &  38.0(1.3) & 48.1(0.4) &  39.0\\
52~020\tablefootmark{*}  & 0.771 & & & &9.5(0.8) & 17.1 & 35.4(0.5) &  30.3(0.2) &  39.0(0.9) &  50.1(0.5) &  40.2\\
52~024\tablefootmark{*}  & 0.782 & & & & 11.9(1.1) & 20.0 & 39.2(0.5) & 33.9(0.5) &  42.6(0.8) &  52.9(0.9) &  43.7\\
52~028\tablefootmark{*}  & 0.793 & & & &10.3(1.3) & 19.8 &  39.9(0.5) & 32.9(0.6) &  42.1(0.5) &  53.3(1.3) &   44.3\\
52~032\tablefootmark{*}  & 0.803 & & & & 12.8(1.4) &  23.2 & 43.5(0.6) &  34.4(0.7) &  45.3(0.4) & 57.6(1.5) &   48.1\\
52~036\tablefootmark{*}  & 0.814  & & & &13.8(1.3) & 25.0 & 45.0(0.9) & 36.6(0.4) & 46.4(0.2) &  61.9(0.9) &  49.7\\
52~040\tablefootmark{*}  & 0.825 & & & &14.7(1.5) & 26.2 & 46.0(0.7) & 34.6(1.4) & 46.7(0.2) & 63.3(1.1) &  51.0 \\
\hline
\end{tabular}
\tablefoot{For saturated lines the radial velocities (itallic) were obtained by fitting their wings. 1-$\sigma$ errors of the mean values are in brackets.
\tablefoottext{*}{-- HST STIS spectra.}}
\end{table}