\begin{table}%t1
\par
\caption{Observation log.\label{tab1}}
\small
%\centerline
{\begin{tabular}{ccccc}
\hline\hline
OBS.ID.    & Start time&Mode& Exp. time & Count rate  \\
           & (s)$^*$   &    & (s)       & $3~\sigma$ UL\\
\hline
00147478000& 74	       & WT & 8438      & \\
           & 189       & PC & 27737     & \\
00147478001& 127~716    & PC & 16947     & \\ 
00147478002& 215~626    & PC & 135       & $<$$1.1\times 10^{-1}$ \\
00147478003& 215~679    & PC & 2121      & $<$$6.2\times 10^{-3}$ \\ 
00147478004& 377~054    & PC & 5244      & $<$$2.8\times 10^{-1}$ \\ 
00147478005& 377~083    & PC & 2218      & $<$$5.8\times 10^{-3}$ \\ 
00147478006& 388~061    & PC & 267       & $<$$1.6              $ \\ 
00147478007$^+$& 388~119    & PC & 25979     & $<$$1.0\times 10^{-3}$ \\ 
00147478008& 474~403    & PC & 1383      & $<1$$.1\times 10^{-2}$ \\ 
00147478009$^+$& 474~582    & PC & 21129     & $<$$9.2\times 10^{-4}$ \\ 
\hline
\end{tabular}}
\par
\smallskip
$^*$ Time from the BAT trigger time.
\\
$^+$ These two observations when summed together lead to a (low significance)
detection at a rate of $(2.6\pm1.1)\times 10^{-4}$~c~s$^{-1}$.
\par
\end{table}