\begin{table}%t2 \par \caption{\label{INTEGRAL-bundles}Characteristics of the INTEGRAL fiber bundles.} \small%\centerline { \begin{tabular}{lcccc} \hline \hline \noalign{\smallskip} Bundle & Fiber core ($\oslash$)$^a$ & \# Fibers$^b$ & FoV$^c$ & Sky-ring$^d$\\ \hline SB1 & 0.45 & 205(175+30) &$7.80 \times 6.40$& 90\\ SB2 & 0.90 & 219(189+30) &$16.0 \times 12.3$& 90 \\ SB3 & 2.70 & 135(115+20) &$33.6 \times 29.4$& 90 \\ \hline \end{tabular}} \smallskip $^a$ {Fiber \textit{core} diameter (arcsec).} \\ $^b$ {Total number of fibers (rectangle+sky ring).}\\ $^c$ {Spatial coverage of the central rectangle in arcsec.}\\ $^d$ {Diameter of the external sky ring in arcsec.} \end{table}