\begin{table}%t1
%\centering
\par
\caption{\label{tab_inf}Basic information of the GRB host galaxies.}
\par
\begin{tabular}{cccccccc}
\hline\hline \noalign{\smallskip}
GRB & RA\tablefootmark{a} & Dec\tablefootmark{a} & $z$ & $E_{\rm G}$ ($B-V$)\tablefootmark{b} & Type \\
\hline
GRB~980703 &  23:59:07 & 08:33:36 & 0.966 & 0.061& long  \\
GRB~990712 & 22:31:50 & --73:24:29  & 0.433 &0.033 &  long \\
GRB~020405 & 13:58:03 & --31:22:22 & 0.691 &0.055 & long \\
GRB~020903 &  22:49:25 & --20:53:59 & 0.251 & 0.033 & long  \\
GRB~030329 & 10:44:50 & 21:31:17 & 0.168 & 0.025 & long  \\
GRB~031203 & 08:02:28 &--39:51:04  & 0.105 & 1.040 & long \\
GRB~060218 & 03:21:39 & 16:52:02 & 0.034 & 0.140 & long \\
GRB~060505  & 22:07:01 & --27:48:56 & 0.089 &0.021 & long? \\
   \hline
   \end{tabular}
\tablefoot{\tablefoottext{a}{Coordinates at the 2000.0~epoch.}
\tablefoottext{b}{Galactic extinction \citep{Schlegel98}.}}
   \end{table}