\begin{table}%t2
%\centering
\par
\caption{\label{tab:pi_flux}Integrated flux densities.}
\small \begin{tabular}{lrrrr}
\hline\hline
$\lambda~{[\rm cm]}$ \T \B & Instrument & $S_{\rm e}~{\rm
[mJy]}$ & $S_{\rm p}~{[\rm mJy]}$ & $P~[\%]$\\\hline
6.2 \T & VLA + Eff. & $1440\pm70$ & $80\pm 12$ & $5.6\pm1.1$\\
6.2 & VLA & $1160\pm60$ & $64\pm 12$ & $5.5\pm1.3$\\
6.2 & Effelsberg & $1430\pm70$ & $87\pm 18$ & $6.1\pm1.6$\\
3.6 \B & Effelsberg & $680\pm40$ & $60\pm 10$ & $8.8\pm2.0$\\
\hline
\end{tabular}
\end{table}