\begin{table}%t2
%\centering
\par
\caption{\label{ktest}Initial conditions for the fictitious planets with $10^{-7}$~$m_{\rm Sun}$.}
\begin{tabular}[h]{lccc}
\hline\hline
& System 1 & System 2 & System 3\\
\hline
Number of fictitious planets & 10 & 10 & 10\\
Mass & $10^{-7}$~$m_{{\rm Sun}}$ & $10^{-7}$~$m_{{\rm Sun}}$ & $10^{-7}$~$m_{{\rm Sun}}$\\
$a$ [AU] innermost planet & 0.0207 & 0.2 & 1.0\\
$e$ & \multicolumn {3}{c} {0.0}\\
Incl, $\omega$, $\Omega$ & \multicolumn {3}{c} {0.0}\\
$M$ [deg] & \multicolumn {3}{c} {random values}\\
Integration time & \multicolumn {3}{c} {$10^{7}$ periods of the innermost planet}\\
\hline
\end{tabular}
\end{table}