\begin{table}%T4
\caption{\label{TA}Systematic component $A$~[$\mu$as] 
in residuals $V_e$  
and in $\langle V\rangle _e$ within central CCD zones of $r$ radii.}
\small%\centering
\par
\begin{tabular}{r|cc|cc}
\hline
\hline
  &\multicolumn{2}{c}{ FORS1 } & \multicolumn{2}{c}{ FORS2 } \\
\hline
$r$    &  {  in $V_e$}  &  {in $\langle V\rangle _e$} 
       &  { in $V_e$ }  &  {in $\langle V\rangle _e$}     \\ 
\hline
40\arcsec   & $53   \pm 21$  &$ 25   \pm 19$   &$65    \pm 22$  &$64    \pm 19$     \\
1\arcmin   & $ 61    \pm 9$  &$69    \pm 10$   &$68    \pm 9$   &$ 68   \pm 10$   \\
1.5\arcmin  & $95   \pm 10$  &$ 79   \pm 12$   &$85    \pm 6$   &$ 89   \pm 6$  \\
\hline
\end{tabular}
\end{table}