\begin{table}%t4
\caption{\label{t:main_prop}Summary of the main properties of XRF~080330.}
  \small 
 %\centerline
{ \begin{tabular}{lc}
 \hline  \hline
Name    & Value\\
\hline
$z$         & $1.51$\\
$S(15{-}150~{\rm keV})$ & $(3.6\pm0.8)\times10^{-7}$~erg~cm$^{-2}$\\
$P(15{-}150~{\rm keV})$ & $(1.0\pm0.2)$~ph~cm$^{-2}$~s$^{-1}$\\
$E_{\rm p}$  & $<$35~keV\\
$E_{\rm p,i}=E_{\rm p}~ (1+z)$ & $<$88~keV\\
$E_{\rm iso}$ ($15$--$150$~keV, obs frame) & $(2.1\pm0.5)\times10^{51}$~erg\\
$E_{\rm iso}$ ($1$--$10^4$~keV, GRB frame) & $<$$2.2\times10^{52}$~erg\\
$t_{\rm jet}$ (obs frame) & $\lesssim$1~day\\
$\theta_0$ (jet opening angle)$^{a}$ & few degrees\\
$\theta_{\rm obs}$ (viewing angle)$^{a}$ & $\sim$$ (1.5{-}2)\theta_0$\\
\hline
\end{tabular}}
\medskip
\par
$^{a}$ Under the assumption of a single off-axis jet.
\end{table}