\begin{table}%t1
%\centering
\par
\caption{Parameters of the model used to fit the AGILE and HESS spectral data, see Fig.~\ref{spec}.}
\begin{tabular}{ll}
\hline  \hline
SNR age & 45~000~yr \\
 {SNR distance} &   {2}~kpc \\
CR total energy   &  $3.3 \times 10^{49}$~erg\\
CR Injection index  & 2.2  \\
Diffusion coeff.  @ 10 GeV  ($D_0$)  & $10^{26}$  $\rm cm^2 s^{-1}$\\
Diffusion coeff.  spectral index  ($\delta$) & 0.5  \\
Cloud N (mass, distance  {from the W28 shell})  & $2.0 \times 10^ {4} M_{\sun}$, $4$ pc \\
Cloud S (mass, distance  {from the W28 shell})  &  $4.5 \times 10^ {4} M_{\sun}$, $9$ pc \\
 &  \\
\hline
\end{tabular}
%\vspace*{-3mm}
\end{table}