\begin{table}%t1
%\centering
\par
\caption{\label{TableResults}Requirements on orbit determination and internal delay calibration.}  
\begin{tabular}{cccc}
\hline\hline
  $\delta R$ /m & $\delta T$ /m & $\delta N$ /m & $\delta T_{23}$ /s \\
  \hline\noalign{\smallskip}
  8 & 16 & 1400 & $10^{-7}$ \\
   \hline
\end{tabular}
 \end{table}