\begin{table}%T3
\caption{\label{heights}Average beginning heights~$H_{\rm B}$, heights of maximum brightness~$H_{\rm M}$ 
and terminal heights~$H_{\rm E}$ for all studied meteor showers.}
%\centering
\par
\begin{tabular}{lll}
\hline
\hline
Shower &~$\overline{H}$ [km]\\
\hline
Leonids & \\
$H_{\rm B}$ & 120.0~$\pm$ 3.5 \\
$H_{\rm M}$ & 106.9~$\pm$ 3.8 \\
$H_{\rm E}$ & 96.5~$\pm$ 3.7 \\
\hline
Orionids & \\
$H_{\rm B}$ & 117.1~$\pm$ 4.0 \\
$H_{\rm M}$ & 106.7~$\pm$ 2.1 \\
$H_{\rm E}$ & 98.8~$\pm$ 3.4 \\
\hline
Perseids & \\
$H_{\rm B}$ & 113.9~$\pm$ 2.4 \\
$H_{\rm M}$ & 104.4~$\pm$ 2.9 \\
$H_{\rm E}$ & 96.0~$\pm$ 4.1 \\
\hline
Taurids & \\
$H_{\rm B}$ & 102.9~$\pm$ 3.2 \\
$H_{\rm M}$ & 92.7~$\pm$ 2.8 \\
$H_{\rm E}$ & 86.7~$\pm$ 2.2 \\
\hline
Geminids & \\
$H_{\rm B}$ & 100.8~$\pm$ 2.2 \\
$H_{\rm M}$ & 91.7~$\pm$ 3.4 \\
$H_{\rm E}$ & 84.9~$\pm$ 4.3 \\
\hline
\end{tabular}
\end{table}