\begin{table}%T3
\par
\caption{Corrections for the position angle effect.
Columns: 1 -- position angle (PA) in degrees; 2 --  projected
spectrograph entrance apertures in arcsec; 3 --  slit position
angle (PA) corrections for emission lines (kp); 4 --
estimated PA correction error  for emission line, e(kp); 5 --
position angle (PA) corrections for continuum flux, kp(cnt); 6 --
the estimated PA correction error  for continuum flux, $e$~(kp(cnt)).
}
\label{tab3}
%\centering
\par
\begin{tabular}{llllll}
\hline \hline
 PA & Aperture  &$kp$(H$\beta$)&$\pm$$e$   &  $kp$(cnt)&$\pm$$e$ \\
deg. &arcsec    &      &    &  &         \\
\hline
  90 & 2.0~$\times$~6.0  & 1     &        &1     &     \\
 90 & 4.0~$\times$~20.4 & 1     &        &1     &     \\
  0 & 2.0~$\times$~6.0  & 0.969 &0.035   &0.968 &0.017\\
  0 & 4.0~$\times$~20.4 & 1.011 &0.018   &1.019 &0.009\\
 45 & 2.0~$\times$~6.0  & 1.062 &0.006   &1.098 &0.024\\
 45 &   4~$\times$~20.4 & 1.048 &0.003   &1.071 &0.006\\
135 & 2.0~$\times$~6.0  & 0.954 &0.018   &0.943 &0.011\\
135 & 4.0~$\times$~20.4 & 0.974 &0.004   &0.981 &0.005\\
\hline
\end{tabular}
\end{table}