\begin{table}%t1
\caption{Results of the application of our model to 
3C~273 BeppoSAX data at different epochs. The magnetic field is
expressed in Gauss and~$N_{\rm tot}$ in units of $10^{53}$~electrons.
The normalization factor for the redshifted power-law representing the jet component, 
$n_{\rm jet}$ is in units of $10^{-3}$~photons~cm$^{-2}$~s$^{-1}$~keV$^{-1}$.
Jet and corona relative intensities are described by 
their respective flux  values, 
in units of $ 10^{-11}$~erg~s$^{-1}$~cm$^{-2}$ (see the text
for details).\label{tab1}}
\begin{tabular}{lcccc}
\hline
\hline\noalign{\smallskip}
obs. epoch  &~1998~ &~Jan. 2000~&~Jun. 2000~&~2001~\\
obs. ~~ \# &~~(3)~ &~~~~(4)~~~&~~~~(5)~~~&~~(6)~\\
\hline\noalign{\smallskip}
 $B$ (G)& 400 &400 & 400& 300 \\
 $\gamma_{\rm min}~~~~~~~~~~~~~~~~~~~$ & 25 & 23 & 25 & 40 \\
 $q$ & 20 & 20 & 20 & 40 \\
\hline\noalign{\smallskip}
 $(N_{\rm tot})_{53}$ &$\rm 1.32_{-0.06}^{+0.07}$& $\rm  1.53_{-0.04}^{+0.05}$  &$\rm 1.3_{-0.07}^{+0.04}$&$\rm 1.06_{-0.04}^{+0.04}$ \\
\noalign{\smallskip}
 $(n_{\rm jet})_{-3} $ &$\rm 11.1_{-1.0}^{+0.6}$     &$\rm 11.3_{-0.6}^{+0.6}$        & $\rm 6.4_{-0.5}^{+0.8}$   &$\rm 5.0_{-1.2}^{+1.1}$ \\
\noalign{\smallskip}
 $F_{\rm MOD}$(0.2--2~keV) &$\rm 4.6_{-0.2}^{+0.3}$    &$\rm 5.22_{-0.19}^{+0.24}$   &$\rm 4.55_{-0.30}^{+0.17}$   &$\rm 6.9_{-0.4}^{+0.4}$\\
\noalign{\smallskip}
$F_{\rm MOD}$(2--10~keV) &$\rm 5.8_{-0.3}^{+0.4}$    &$\rm 6.4_{-0.3}^{+0.2}$   &$\rm 5.8_{-0.4}^{+0.2}$   &$\rm 7.8_{-0.5}^{+0.4}$\\
\noalign{\smallskip}
$F_{\rm JET}$(2--10~keV) & $\rm 5.0_{-0.4}^{+0.3}$   &$\rm  5.1_{-0.3}^{+0.3}$  & $\rm 2.9_{-0.2}^{+0.4}$  &$\rm 2.2_{-0.5}^{+0.5}$\\
\noalign{\smallskip}
$F_{\rm TOT}$(2--10~keV)  &$\rm 10.9_{-0.8}^{+0.8}$    &$\rm 11.6_{-0.6}^{+0.6}$  &$\rm 8.7_{-0.6}^{+0.6}$   &$\rm 10.2_{-1.0}^{+1.0}$\\
\noalign{\smallskip}
\hline\noalign{\smallskip}
 $\chi^2_{\nu}~~ (156~{\rm d.o.f.})$  &1.06&  1.06  &1.03&0.96\\
\hline
\end{tabular}
\end{table}