\begin{table}%t1
\par
   %\centering
\par
      \caption{\label{t1}Mid-transit times (HJD) and errors (days) of CoRoT-1b.}
\begin{tabular}{cccc}
            \hline\hline
            \noalign{\smallskip}
            HJD & Error (days) & HJD & Error (days)\\
 \hline
 2~454~138.32782 & 0.00039 & 2~454~165.48897 & 0.00028 \\
2~454~139.83657 & 0.00024 & 2~454~166.99842 & 0.00047 \\
2~454~141.34646 & 0.00043 & 2~454~168.50716 & 0.00019 \\
2~454~142.85436 & 0.00020 & 2~454~170.01559 & 0.00025 \\
2~454~144.36357 & 0.00021 & 2~454~171.52515 & 0.00026 \\
2~454~145.87264 & 0.00025 & 2~454~173.03371 & 0.00021 \\
2~454~147.38159 & 0.00047 & 2~454~174.54261 & 0.00025 \\
2~454~148.89096 & 0.00039 & 2~454~176.05135 & 0.00031 \\
2~454~150.39940 & 0.00013 & 2~454~177.56074 & 0.00029 \\
2~454~151.90842 & 0.00039 & 2~454~179.06949 & 0.00031 \\
2~454~153.41730 & 0.00010 & 2~454~180.57845 & 0.00035 \\
2~454~154.92612 & 0.00024 & 2~454~183.59652 & 0.00029 \\
2~454~156.43507 & 0.00018 & 2~454~185.10548 & 0.00035 \\
2~454~157.94435 & 0.00011 & 2~454~186.61417 & 0.00034 \\
2~454~159.45266 & 0.00038 & 2~454~188.12340 & 0.00040 \\
2~454~160.96186 & 0.00017 & 2~454~189.63264 & 0.00040 \\
2~454~162.47116 & 0.00015 & 2~454~191.14105 & 0.00027 \\
2~454~163.98002 & 0.00018 &               &         \\
             \hline
\end{tabular}
\end{table}