\begin{table}%T3
\caption{\label{tab3}Journal of radial velocity data. The columns give the spectrum
number (as from the Asiago 1.82 m Echelle~+~CCD log book), the heliocentric~JD, 
and the heliocentric radial velocities (in km~s$^{-1}$)  
for both components. An asterisk marks the spectra with a too severe blending 
of the lines for a meaningful measurement of radial velocities of each 
component. The latter have not been used in modeling of the binaries.}
%\centering
\par
\begin{tabular}{llrrcllrrcllrr}
\hline \hline \noalign{\smallskip}
\multicolumn{4}{c}{V781 Tau}&&\multicolumn{4}{c}{UV Leo}&&\multicolumn{4}{c}{GK Dra}\\
\multicolumn{1}{c}{\#}&\multicolumn{1}{c}{HJD}&\multicolumn{1}{c}{$RV_1$}&\multicolumn{1}{c}{$RV_2$}&&
\multicolumn{1}{c}{\#}&\multicolumn{1}{c}{HJD}&\multicolumn{1}{c}{$RV_1$}&\multicolumn{1}{c}{$RV_2$}&&
\multicolumn{1}{c}{\#}&\multicolumn{1}{c}{HJD}&\multicolumn{1}{c}{$RV_1$}&\multicolumn{1}{c}{$RV_2$}
\\
%\multicolumn{4}{c}{------------------------------------------------}&\hspace*{3mm}&
%\multicolumn{4}{c}{------------------------------------------------}&\hspace*{3mm}&
%\multicolumn{4}{c}{------------------------------------------------}\\
30731* &2451153.53313&   36.4&    36.4 &&31837 &  2451209.51624&$-$151.4&	199.7&&31848 & 2451209.60066&$-$71.9&	   59.9    \\
30788  &2451154.52849&  253.0&  $-66.6$ &&31878 &  2451210.43364 & 166.6&      $-$172.8&&32100 & 2451225.52478 & 74.2&	 $-59.3$   \\
30802* &2451154.61290&   23.9&    23.9 &&31952 &  2451216.49289 & 116.0&       $-$73.3&&32775 & 2451274.54782 & 80.3&	 $-$63.4   \\
30852  &2451155.49988&  207.5&  $-$15.8 &&31968*&  2451217.46653 &  18.9&	 18.9&&32817 & 2451275.52285 & 76.5&	 $-$50.3   \\
30867* &2451155.63872&   28.9&    28.9 &&32012 &  2451221.51594&$-$156.3&	171.3&&32869 & 2451279.53257&$-$70.8&	   67.5   \\
30913  &2451156.52626&  160.1&  $-$61.6 &&32085 &  2451225.43269 & 179.4&      $-$158.2&&32960 & 2451339.41309&$-$72.3&	   63.2   \\
31171* &2451165.47882&   53.4&    53.4 &&32658 &  2451269.44151&$-$110.2&	128.3&&33115 & 2451402.34909 & 27.5&	 $-$11.0   \\
31229* &2451166.51393&   49.1&    49.1 &&32663 &  2451269.47415&$-$149.6&	175.1&&33978 & 2451564.59894 & 76.9&	 $-$60.0   \\
31278  &2451167.48421&$-$120.6&    88.9 &&32668 &  2451269.50678&$-$164.4&	206.5&&34153 & 2451589.57475&$-$79.3&	   63.3   \\
31327* &2451169.58493&    8.0&    08.0 &&32802 &  2451275.44879&$-$121.7&	133.1&&34182 & 2451592.56867 & 50.8&	 $-$39.5   \\
31460* &2451197.50043&  $-$0.3&   $-$0.3 &&32807 &  2451275.48073&$-$147.3&	183.3&&34226 & 2451593.57209 & 85.7&	 $-$63.9   \\
31462* &2451197.51640&   11.8&    11.8 &&33967 &  2451564.53178 &  99.9&       $-$98.0&&34382 & 2451621.43916 &  5.1&	    5.1   \\
31622  &2451201.26374&$-$176.8&   116.1 &&34228 &  2451593.60814&$-$112.1&	137.0&&34418 & 2451624.51494 & 72.6&	 $-$54.4   \\
31624  &2451201.28454&$-$152.1&   104.3 &&34410 &  2451624.41908 & 159.9&      $-$142.5&&34453 & 2451625.49986 & 46.8&	 $-$33.2   \\
31626* &2451201.30692&    8.7&     8.7 &&34413 &  2451624.46813 & 150.9&      $-$177.8&&34503 & 2451626.51482 &  4.5&	    4.5   \\
31628* &2451201.32782&   31.5&    31.5 &&34416 &  2451624.49141 & 157.4&      $-$128.5&&35762 & 2451798.51275 &	   &5.2   \\
31630* &2451201.34668&   46.9&    46.9 &&34443 &  2451625.42998&$-$102.6&	141.3&&36093 & 2451895.65844 &$-$5.0&	  $-$5.0   \\
31632  &2451201.36542&  173.6&  $-$22.8 &&34501 &  2451626.49333 &$-$98.4&	153.7&&36143 & 2451896.68512&$-$34.2&	   33.4   \\
31634  &2451201.38402&  228.4&  $-$52.1 &&36082*&  2451895.53608& $-$31.8&       $-$31.8&&36172 & 2451923.62582 & 79.5&	 $-$56.2   \\
31636  &2451201.40272&  254.7&  $-$61.8 &&36084*&  2451895.55506 &  54.9&       $-$54.3&&36286 & 2451924.63312 & 48.1&	 $-$35.8   \\
31638  &2451201.42120&  265.0&  $-$66.9 &&36087 &  2451895.60196 &  79.4&       $-$91.6&&36413 & 2451951.71656 & 55.3&	 $-$44.3   \\
31640  &2451201.44007&  239.2&  $-$53.0 &&36089 &  2451895.62120 & 106.4&      $-$106.8&&36437 & 2451952.52896 & 82.0&	 $-$62.2   \\
31642  &2451201.45878&  191.9&  $-$37.0 &&36095 &  2451895.68774 & 153.0&      $-$152.5&&36501 & 2451954.61109 & 46.6&	 $-$30.0   \\
31644* &2451201.48908&   42.4&    42.4 &&36133 &  2451896.56836&$-$151.1&	148.9&&36533 & 2451955.60739 &$-$3.8&	  $-$3.8   \\
31646* &2451201.50783&   31.5&    31.5 &&36135 &  2451896.58704&$-$169.7&	155.1&&36558 & 2451983.57775 & 74.2&	 $-$55.2   \\
31648* &2451201.52638&   17.7&    17.7 &&36140 &  2451896.64222&$-$134.7&	138.5&&36811 & 2452067.40354&$-$72.7&	   59.5   \\
31650  &2451201.54527&$-$143.3&    99.8 &&36142 &  2451896.66113&$-$136.5&	117.1&&37930 & 2452300.54093 & 44.5&	 $-$31.4   \\
31652  &2451201.56386&$-$169.6&   120.3 &&36278 &  2451924.52603 & 141.9&      $-$178.4&&37955 & 2452302.58732 & 77.8&	 $-$64.0   \\
31654  &2451201.58275&$-$187.5&   128.3 &&36386 &  2451951.51048 & 156.3&      $-$199.1&&38392 & 2452361.47712 & 82.8&	 $-$63.4   \\
31667  &2451202.28749&$-$188.7&   119.7 &&&& &					     &&38394 & 2452361.50350 & 81.8&	 $-$61.8   \\
31682  &2451202.46289&  265.5&  $-$76.4 &&&& &					     &&38518 & 2452387.46484&$-$80.4&	   69.2   \\
34483  &2451626.31285&  227.7&  $-$51.6 &&&& &					     &&38536 & 2452388.48135&$-$56.8&	   46.4   \\
34485  &2451626.33501&  259.7&  $-$65.3 &&&& &					     &&38543 & 2452389.49614 &  0.0&	    0.0   \\
34487  &2451626.35703&  248.8&  $-$61.0 &&&& &					     &&38561 & 2452447.46833&$-$77.9&	   64.9   \\
37488  &2452242.53303&$-$181.8&   121.1 &&&& &					     &&38579 & 2452448.36282&$-$53.6&	   46.9   \\
37497  &2452242.70637&  271.2&  $-$67.4 & &&&&&&&&&\\
37601  &2452271.35705&  184.5&  $-$71.5 & &&&&&&&&&\\
37627  &2452272.38422&  207.0&  $-$61.1 & &&&&&&&&&\\
37680* &2452277.40348&   15.7&    15.7 & &&&&&&&&&\\
37821  &2452280.46476&$-$191.9&   133.3 & &&&&&&&&&\\
38165  &2452330.49815&$-$176.4&   112.0 & &&&&&&&&&\\
\hline
\end{tabular}
\end{table}