\begin{table}%t2
\caption{\label{tab2}Observed properties of~18~GRBs with no measured redshift. 
The eight columns give the name of the~GRB, the time of arrival, the duration~$T_{90}$ in seconds, the three spectral parameters ($\alpha$, $\beta$, and~$E_0$), 
the gamma-ray fluence~$S_{\gamma}$ in units of~10$^{-6}$~erg~cm$^{-2}$ in the range 30$-$400~keV,
the pseudo-redshift $\hat{z}$, and a comment on the eventual detection of an afterglow
(XRR stands for X-Ray Rich~GRB, OA, XA, and~RA, respectively for Optical Afterglow, X-ray Afterglow,
and Radio Afterglow).}
$$
\begin{array}{llllllll}
\hline\hline
\noalign{\smallskip}
{\rm Name} & 
{\rm Time} & 
{ T}_{90} & 
{\alpha} & 
{E}_0 & 
{S}_{\gamma} ^{{\rm e}} & 
{\hat{z}} &
{\rm Comment}  \\
     & 
{\rm SOD}  & 
{\rm s}  & 
     &
{\rm keV}  &
     &
     &
     \\
\noalign{\smallskip}
\hline 
\noalign{\smallskip}
001225  & 25~759 & 32.3 & -1.17 &  283 &  114 & 0.64 &  \\
010126  & 33~162 &  7.7 & -1.06 &  115 &  3.0 &  1.6 &  \\
010326A & 11~701 & 23.0 & -.894 &  260 &   16 &  2.8 &  \\
010613  & 27~235 & 152. & -1.40 &  176 & 20.3 & 0.85 &  \\
010629  & 44~468 & 15.1 & -1.17 &   59 &  2.6 & 0.76 &  {\rm XRR} \\
010928  & 60~826 & 48.3 & -.623 &  260 &   21 &  4.9 &  \\
020113  &  7452 & 1.31 & -0.46 &  239 &  1.3 &  2.3 &  {\rm Short/Hard} \\
020127  & 75~444 &  9.3 & -1.19 &  156 &  0.9 &  3.9 &  {\rm XA, RA, host} \\
020214  & 67~778 & 27.4 & -.256 &  176 &   93 &  1.7 &  \\
020305  & 42~925 & 250. & -.861 &  143 & 10.4 &  4.6 &  {\rm OA, host} \\
020331  & 59~548 & 56.5 & -.922 &  120 &  4.5 &  3.4 &  {\rm OA} \\
020418  & 63~789 & 7.54 & -1.10 &  240 & 13.9 &  1.3 &  \\
020531  &  1578 & 1.15 & -1.10 &  810 &  1.2 & 13.5 &  {\rm Short/Hard} \\
020801  & 46~721 & 336. & -1.32 &  116 & 16.3 & 0.95 &  \\
020812  & 38~503 & 27.5 & -1.03 &  125 &  2.3 &  3.4 &  \\
020819  & 53~855 & 33.6 & -1.03 &   94 &  5.4 &  1.5 &  {\rm RA, host} \\
021016  & 37~740 & 81.6 &  -.98 &  132 & 11.3 &  2.1 &  \\
021104  & 25~262 & 19.7 &  -1.0 &   27 &  0.3 &  1.6 &  {\rm XRR} \\
\noalign{\smallskip}
\hline
\end{array}
$$
\end{table}