\begin{table}%t1 %\centering \par \caption{\label{IOMC:tobserv}Log of the observations used in this work.} \begin{tabular}{ccc} \hline \hline \noalign{\smallskip} \multicolumn{1}{c}{Time interval} & \multicolumn{1}{c}{Type of observation} & \multicolumn{1}{c}{Telescope} \\ \hline 16 Nov. 2002--1 May 2005 & Photometry & INTEGRAL/OMC \\ 21 Jul. 2004--1 Sep. 2004 & Photometry & 0.5~m CAB \\ 19 Aug. 2006--24 Aug. 2006 & Photometry & 1.52~m OAN \\ 23 Sep. 2004--5 Nov. 2006 & High-resolution spectroscopy & 1.5~m Whipple Observatory \\ 25 Jul. 2007 & Low-resolution spectroscopy & 3.5~m TWIN \\ \hline \end{tabular} \end{table}