\begin{table}%t1
\caption{\label{tab:1}Energy intervals and time of flight, i.e.\ the maximum
      travel time taken into account, so that particles from 1500~AU
      with a given mean energy can reach the detector.}
  %\centering
\par
    \begin{tabular}{ccccc}
    \hline\hline\noalign{\smallskip}
see & mean & lower & upper & max. time of \\
Fig.~\ref{fig1} &\multicolumn{3}{c}{kinetic energy [keV]} &  flight [years] \\
\noalign{\smallskip}\hline\noalign{\smallskip}
a) & 0.2 &  0.1 &\phantom{1} 0.3 &           35.0 \\ 
b) & 0.4 &  0.3 &\phantom{1} 0.6 &           27.0 \\
c) & 0.8 &  0.6 &\phantom{1} 0.9 &           19.0 \\
d) & 1.0 &  0.9 &\phantom{1} 1.2 &           18.0 \\ 
e) & 1.5 &  1.2 &\phantom{1} 2.0 &           14.0 \\
f) & 2.5 &  2.0 &\phantom{1} 3.0 &           11.0 \\
g) & 3.5 &  3.0 &\phantom{1} 4.7 &\phantom{1} 9.0 \\
h) & 5.0 &  4.7 &\phantom{1} 5.5 &\phantom{1} 7.6 \\
i) & 6.0 &  5.5 &           10.0 &\phantom{1} 6.9 \\
\hline
    \end{tabular}
    \end{table}