\begin{table}%t4 \caption{\label{tleorad}Radiants and orbital elements (J2000.0) of the 1999, 2001, and 2006 Leonid fireballs with known time of meteor passage.} %\centerline {\tiny \begin{tabular}{lcccclllllc} \hline\hline \noalign{\smallskip} Meteor & $\alpha _{\rm G}$ & $\delta_{\rm G}$ & $V_{\rm G}$ & $a$ & $e$ & $q$ & $\omega $ & $\Omega $ & $i$ & $T_{\rm J}$\\ No. &(deg) & (deg)&(km~s$^{-1}$)&(AU)& & (AU) & (deg) & (deg) & (deg) & \\ \hline\noalign{\smallskip} Year & 1999 &&&&&&&&&\\ %\hline\noalign{\smallskip} LEO01 & $152.82 \pm 0.17$& $23.05 \pm 0.16$ & $71.3 \pm 0.3$ & 64 & 0.98 & 0.9824 & 170.6 & 233.38595 & 161.0 & --1.08 \\ LEO02 & $153.83 \pm 0.06$ & $21.47 \pm 0.05$ &$70.36 \pm 0.10$ & 8.1 & 0.878 & 0.9833 & 171.36 & 235.28120 & 162.75 & --0.55 \\ LEO03 & $154.6 \pm 0.2$ & $21.65 \pm 0.10$ & $70.02 \pm 0.08$ & 6.8 & 0.856 & 0.9804 & 169.2 & 235.29096 & 162.0 & --0.43 \\ LEO04 & $153.69 \pm 0.04$ & $21.68 \pm 0.03$ & $70.20 \pm 0.05$ & 7.3 & 0.866 & 0.98422 & 172.09 & 235.29881 & 162.48 & --0.49 \\ LEO05 & $153.81 \pm 0.09$ & $21.1 \pm 0.3$ & $70.44 \pm 0.10$ & 8.2 & 0.881 & 0.9828 & 170.9 & 235.30074 & 163.4 & --0.57 \\ LEO06 & $153.3 \pm 0.2$ & $22.08 \pm 0.14$ &$70.4 \pm 0.3$ & 8.7 & 0.887 & 0.9861 & 174.1 & 235.30116 & 162.1 & --0.60 \\ % & 24 & 14 & 32 & 2.2 & 29 & 7 & 8 & 1 & 3 & \\ LEO07 & $153.47 \pm 0.12$ & $21.6 \pm 0.6$ & $70.15 \pm 0.11$ & 6.9 & 0.858 & 0.9848 & 172.6 & 235.31143 & 162.8 & --0.45 \\ LEO08 & $153.42 \pm 0.12$ & $21.83 \pm 0.05$ & $70.26 \pm 0.17$ & 7.6 & 0.871 & 0.9854 & 173.2 & 235.31285 & 162.42 & --0.52 \\ % & 12 & 5 & 17 & 9 & 15 & 4 & 4 & 1 & 11 & \\ LEO09 & $153.65 \pm 0.15$ & $21.65 \pm 0.17$ & $70.3 \pm 0.2$ & 7.6 & 0.87 & 0.9844 & 172.3 & 235.33041 & 162.6 & --0.51 \\ LEO10 & $154.36 \pm 0.06$ & $22.7 \pm 0.3$ & $69.15 \pm 0.20$ & 4.7 & 0.790 & 0.9832 & 171.0 & 235.332 & 160.3 & --0.07 \\ % & 6 & 3 & 20 & 4 & 18 & 7 & 6 & 4 & 5 & \\ LEO11 & $153.66 \pm 0.08$ & $21.57 \pm 0.06$ & $70.45 \pm 0.11$ & 8.7 & 0.887 & 0.9843 & 172.3 & 235.33414 & 162.71 & --0.60 \\ LEO12 & $153.83 \pm 0.06$ & $21.68 \pm 0.02$ & $70.14 \pm 0.09$ & 7.1 & 0.861 & 0.9859 & 171.79 & 235.34502 & 162.38 & --0.46 \\ LEO13 & $152.6 \pm 0.5$ & $22.1 \pm 0.4$ & $70.2\pm 0.3$ & 7.2 & 0.86 & 0.9876 & 176.2 & 235.35985 & 162.5 & --0.46 \\ % & 48 & 4 & 3 & 1.4 & 3 & 9 & 1.6 & 1 & 7 & \\ LEO14 & $153.70\pm 0.09$ & $21.48 \pm 0.13$ & $70.02 \pm 0.20$ & 6.4 & 0.847 & 0.9840 & 171.9 & 235.36128 & 162.8 & --0.39 \\ % & 9 & 13 & 20 & 8 & 18 & 4 & 4 & 1 & 2 & \\ LEO15 & $154.9 \pm 0.5$ & $21.63\pm 0.15$ & $70.41\pm 0.13$ & 8.9 & 0.889 & 0.9837 & 171.9 & 236.25849 & 161.9 & --0.61 \\ LEO16 & $154.29 \pm 0.06$ & $21.5\pm 0.03$ & $71.32 \pm 0.11$ & 30 & 0.967 & 0.9856 & 173.91 & 236.26581 & 162.53 & --1.03 \\ LEO17 & $153.98 \pm 0.16$ & $21.72 \pm 0.12$ & $71.0 \pm 0.3$ & 15 & 0.93 & 0.9866 & 175.0 & 236.29885 & 162.4 & --0.83 \\ \hline\noalign{\smallskip} Year & 2001 &&&&&&&&&\\ %\hline\noalign{\smallskip} LEO18 & $152.30 \pm 0.03 $ & $23.30 \pm 0.04$ & $70.18 \pm 0.11$ & 8.4 & 0.883 & 0.9815 & 169.55 & 232.73396 & 160.68 & --0.56 \\ LEO19 & $152.54 \pm 0.08$ & $23.19 \pm 0.06$ & $70.57 \pm 0.12$ & 12.0 & 0.919 & 0.9807 & 169.1 & 232.78574 & 160.78 & --0.76 \\ LEO20 & $154.25 \pm 0.15$ &$21.82 \pm 0.07$ & $70.50 \pm 0.07$ & 9.5 & 0.896 & 0.9842 & 172.1 & 235.71460 & 161.98 & --0.64 \\ LEO21 & $153.95 \pm 0.02$ & $22.05 \pm 0.02$ & $70.32 \pm 0.15$ & 8.3 & 0.881 & 0.98551 & 173.44 & 235.75032 & 161.77 & --0.56 \\ LEO22 & $153.47 \pm 0.17$ & $21.97 \pm 0.11$ & $70.53 \pm 0.11$ & 9.4 & 0.895 & 0.9867 & 175.0 & 235.76569 & 162.2 & --0.64 \\ LEO23 & $153.96 \pm 0.05$ & $21.72 \pm 0.02$ & $70.58 \pm 0.13$ & 8.2 & 0.899 & 0.9852 & 173.2 & 235.77680 & 162.32 & --0.66 \\ LEO24 & $155 \pm 1$ & $21.73 \pm 0.07$& $69.73 \pm 0.13$ & 5.9 & 0.833 & 0.980 & 169 & 235.77759 & 161.4 & --0.30 \\ LEO25 & $152.2 \pm 0.3$ & $20.92 \pm 0.12$ & $70.38 \pm 0.15$ & 7.1 & 0.861 & 0.9881 & 177.5 & 235.78100 & 164.6 & --0.48 \\ LEO26 & $153.91 \pm 0.04$ & $22.19 \pm 0.13$ & $70.2 \pm 0.3$ & 7.5 & 0.87 & 0.9860 & 173.96 & 235.81875 & 161.5 & --0.50 \\ LEO27 & $154.05 \pm 0.02$ & $21.70 \pm 0.05$ & $70.72 \pm 0.12$ & 11 & 0.913 & 0.9851 & 173.12 & 235.83328 & 162.33 & --0.74 \\ LEO28 & $154.33 \pm 0.10$& $21.4 \pm 0.2$ & $70.4 \pm 0.3$ & 8.2 & 0.88 & 0.9836 & 171.6 & 235.84343 & 162.6 & --0.56 \\ % & 6 & 6 & 12 & & & & & & & \\ LEO29 & $154.13 \pm 0.02$ & $21.80 \pm 0.04$ & $70.7 \pm 0.4$ & 10.7 & 0.91 & 0.9851 & 173.1 & 235.86862 & 162.11 & --0.72 \\ \hline\noalign{\smallskip} Year & 2006 &&&&&&&&&\\ %\hline\noalign{\smallskip} LEO50 & $152.751 \pm 0.014$ & $22.90 \pm 0.03$ & $70.80 \pm 0.06$ & 15.1 & 0.935 & 0.98230 & 170.39 & 233.43156 & 161.18 & --0.85 \\ LEO51 & $152.59 \pm 0.13$ & $22.47\pm 0.17$ & $69.1 \pm 0.5$ & 4.5 & 0.78 & 0.9819 & 169.6 & 233.55075 & 161.6 & --0.02 \\ LEO52 & $153.76 \pm 0.05$ & $21.82\pm 0.03$ & $70.28 \pm 0.05$ & 7.8 & 0.873 & 0.9846 & 172.4 & 235.40783 & 162.22 & --0.52 \\ LEO53 & $154.13 \pm 0.07$ & $22.90\pm 0.10$ & $70.5 \pm 0.2$ & 9.8 & 0.90 & 0.9844 & 172.3 & 235.47881 & 161.3 & --0.66 \\ % & 7 & 10 & 2 & 1.7 & 2 & 3 & 3 & 2 & 2 & \\ LEO54 & $154.71 \pm 0.05$ & $21.37 \pm 0.13$ & $70.5 \pm 0.2$ & 9.0 & 0.89 & 0.9851 & 173.2 & 236.60258 & 162.4 & --0.62 \\ \hline \end{tabular}} \medskip ($\alpha _{\rm G}$, $\delta _{\rm G}$) is the geocentric radiant, $V_{\rm G}$ is geocentric mean velocity without atmospheric drag (not mesurable on our records) and $T_{\rm J}$ is Tisserand's parameter. Values of individual entries are given with an accuracy of one or two last digits or with one standard deviation. \end{table}