\begin{table}%t7
%\centering
\par
\caption{EVN rms astrometric errors (in $\mu$as) for a relative source separation
$(\alpha -\alpha _0)\cos\delta_0 = 1\degr$. Individual astrometric error contributions from station
coordinate and wet troposphere uncertainties are given separately along with the
total astrometric errors when all model parameters are perturbed together.
\label{EVNRA}}
\begin{tabular}{lccccccccccccccc}
\hline \hline
\noalign {\vskip 1.0mm}
 &&\multicolumn{13}{c}{Declination of source}\\
\noalign {\vskip 0.5mm}  \noalign {\vskip 1.0mm} \hfil
\hfil
&&\multicolumn{2}{c}{$0\degr$}&&\multicolumn{2}{c}{$25\degr$}
        &&\multicolumn{2}{c}{$50\degr$}&&\multicolumn{2}{c}{$75\degr$}&&\multicolumn{2}{c}{$85\degr$}\\
\noalign {\vskip 0.0mm}
Error component&&$\Delta\alpha\cos\delta \hfil$ &$\Delta\delta$&&
        $\Delta\alpha\cos\delta \hfil$&$\Delta\delta$&&$\Delta\alpha\cos\delta \hfil$&$\Delta\delta$&&
        $\Delta\alpha\cos\delta \hfil$&$\Delta\delta$&&$\Delta\alpha\cos\delta \hfil$&$\Delta\delta$\\
\noalign {\vskip 0.0mm}
\hline
Antenna position                &&   ~5   &   ~4 && ~5   &   ~4  &&   ~6  &   ~5  &&   ~~5  &   ~5 && ~~5 & ~~5 \\
Wet troposphere (mean)          &&   55   &   11 && 37   &   14  &&   52  &   33  &&   ~73  &   40 && ~65 & ~31 \\
Total (mean wtrp)               &&   57   &   12 && 44   &   15  &&   57  &   45  &&   ~91  &   81 && 206 & 185 \\
\hline
\end{tabular}
\end{table}