\def\caption#1{{\bf #1}}}
%\begin{table}
\caption{Log of MIDI observations: 3C 273}
\begin{tabular}{| c c c c c c c c c c c c c c c}
\hline\hline
\multicolumn{8}{c}{Fringe track} & \multicolumn{3}{c}{FT QC} & PH & PH QC & \multicolumn{2}{c}{Calibration} \\
time & s & NDIT & BL & PA & g & mode & am & see & O & NGOOD & o3 & A/B & O & caltime & $\Delta$am \\
\hline
\hline
\multicolumn{15}{l}{2007-02-06: U2U3} \\
05:41:06 & -1 &  8000 &  35 &  26 & P & FT\_OF & 1.4 & 0.7 &  0 &   315 &  1.08 & 0/0 & -1 & 06:31:50 &      0.4\\
05:50:44 & -1 &  8000 &  35 &  28 & P & FT\_OF & 1.3 & 0.8 &  0 &    -1 & -1.00 & 0/0 & -1 & 06:31:50 &      0.3\\
06:04:10 &  1 &  8000 &  36 &  30 & P & FT\_OF & 1.3 & 0.7 &  1 &  6769 &  0.50 & 0/0 & -1 & 06:31:50 &      0.3\\
06:08:32 &  0 &  8000 &  36 &  31 & P & FT\_OF & 1.3 & 0.7 &  1 &  6855 &  0.57 & 0/0 & -1 & 06:31:50 &      0.3\\
\hline
\multicolumn{15}{l}{2008-04-21: U3U4} \\
06:52:20 &  1 &  8000 &  30 & 126 & P & FT\_OF & 2.0 & 0.7 &  1 &  5546 &  0.47 & 1/1 &  0 & 06:10:08 &      0.3\\
07:03:47 &  0 &  8000 &  28 & 129 & P & FT\_OF & 2.2 & 0.6 &  1 &  4966 &  0.54 & 1/1 &  0 & 06:10:08 &      0.5\\
\hline
\multicolumn{15}{l}{2009-05-04: U3U4} \\
05:50:15 & -1 &  8000 &  33 & 123 & P & FT\_OF & 1.9 & 0.6 &  0 &    -1 & -1.00 & 1/1 &  1 & 06:23:15 &     -0.7\\
\hline
\multicolumn{15}{l}{2010-01-30: U2U4} \\
09:16:32 &  1 &  8000 &  88 &  81 & P & FT\_OF & 1.1 & 0.9 &  1 &  7040 &  0.59 & 1/1 &  0 & 08:56:39 &      0.1\\
09:28:12 &  0 &  8000 &  87 &  81 & P & FT\_OF & 1.2 & 0.9 &  1 &  7136 &  0.60 & 1/1 &  0 & 08:56:39 &      0.1\\
\hline
\end{tabular}
%\end{table}