\begin{table}%t1 \par \caption{\label{table-obs}Radio, near infrared, and X-ray observations of \lsi\ field used in this paper.} \small %\centerline {\begin{tabular}{lclcr} \hline \hline & Instrument & \multicolumn{1}{c}{Date} & Band & Integ. time \\ \hline & & 08-Jun.-1992 & C (6 cm) & 9.8 h \\ Radio & VLA CnD & 27-Jun.-1992 & L (20 cm) & 3.0 h \\ & & 09-Sep.-1993* & C (6 cm) & 7.8 h \\ & & 13-Sep.-1993* & C (6 cm) & 7.9 h \\ \hline & & 25-Sep.-2007 & $J$\ \ \ (1.25 $\mu$m) & 905 s \\ % 30 x 30.18 s Infrared & CAHA 3.5 m & 25-Sep.-2007 & $H$\ \ (1.65 $\mu$m) & 905 s \\ % 30 x 30.18 s & & 25-Sep.-2007 & $K_{\rm s}$ (2.18 $\mu$m) & 1811 s \\ % 60 x 30.18 s \hline X-rays & {\it Chandra} & 08-Apr.-2006 & 0.5--7.0 keV & 49.9 ks \\ \hline \end{tabular}} \medskip * Already used by M98. \end{table}