\begin{table}%t3
\caption{\label{tab:det}Details of the detections and upper limits for the non-detections of \bpcru\ ordered by orbital phase.} 
\par
\small%\centerline
 {
\begin{tabular}{cccc}
\hline\hline
&&& \\[-8pt]
 Epoch (phase)$^a$ & \multicolumn{2}{c}{Flux [mJy]$^b$} &
 $\alpha$$^{cg}$ \\ 
 & 4.8 GHz & 8.6 GHz &   \\
\hline
&&& \\[-8pt]
 1($-$7) & 1.02 (0.17) & 0.82 (0.18) & $\rm -0.38^{+0.28}_{-1.10}$ \\
{\it 9($-$4)}$^d$ & {\it 1.01 (0.16)} & {\it 0.51 (0.13)} & {\it {$\it -1.17^{-0.49}_{-1.93}$}} \\  2($-$3) & 0.75 (0.14) & ${<}0.48$ (0.16) & $\rm -0.88^{+0.0}$ \\
10(+0) & 0.70 (0.14) & 0.72 (0.13) & $\rm +0.05^{+0.72}_{-0.61}$ \\
 3(+1)$^h$ & (0.18) & (0.15) & \\
{\it 7(+1)}$^e$ & {\it 0.67 (0.13)} & {\it 0.91 (0.14)} & {\it {$\it +0.53^{+1.14}_{-0.07}$}} \\ 
 8(+16)$^f$ & 0.51 (0.09) & 0.63 (0.09) & $\rm +0.36^{+0.92}_{-0.18}$ \\[2pt]  
\hline
\end{tabular}}
\medskip
$^a$ Phase indicates ``days from periastron''. \\
$^b$ Numbers in parenthesis indicate the rms value in the maps.  \\
$^c$~Spectral index, $\alpha=\log(F_{8.6}/F_{4.8}) / \log(\nu_{8.6} / \nu_{4.8})$.  \\
$^d$~Orbital phase also observed in epoch~6 with a compact configuration, and hence not considered useful for this project.  \\
$^e$~Orbital phase also observed in epoch~3 without detection. See text. \\
$^f$~Note that for this epoch Stokes~\textit{Q} at 8.6~GHz is 0.38~mJy, while Stokes~\textit{V} and~\textit{U} were not detected. No polarisation signal was detected at 4.8~GHz. \\
$^g$~Maximum and minimum values of the spectral index when adding/subtracting 1$\sigma$~rms to the listed flux.  \\
$^h$~As mentioned in the text, we do not detect \bpcru\ at this epoch. 
\end{table}