\begin{table}%Ta3
\caption{\label{tab:hwcma_tmin}Times of primary (P) minima of HW~CMa.
O$-$C values are calculated for the
ephemeris given in Eq.~(\ref{eq:hwcma_eph}).
}
\small%\centering
\par
\begin{tabular}{llcrc} 
\hline
\hline
HJD           & rms    & Type &   O$-$C      &  Reference  \\
$-$ 2~400~000 &      &      &            &              \\
 \hline
 48~689.6471    &0.0004  & P    &   0.0000   & This paper \\
52~279.6787    &0.0004  & P    &   0.0000   &     --      \\
\hline
\end{tabular} 
\end{table}