\begin{table}
\caption{\label{tab3} Summary of {\it HST}/STIS Eta Car spectroscopic observations used in this paper.} 
%%\centering

\par
\begin{tabular}{l c c c}
\hline\hline
Date & $\phi$ & JD & High-velocity absorption?\\
\hline
2002 Jan. 20 & 10.738 & 2~452~240 & No \\
2002 Jul. 04 & 10.820 & 2~452~460 & No \\
2003 Feb. 13 & 10.930 & 2~452~683 & No \\
2003 Jun. 01 & 10.984 & 2~452~792 & Yes \\
2003 Jun. 22 & 10.995 & 2~452~813 & Yes \\
2003 Jul. 05 & 11.001 & 2~452~825 & Yes \\
2003 Jul. 29 & 11.013 & 2~452~851 & Yes \\
\hline
\end{tabular}
\end{table}