\begin{table}%T1 %\centering \small \caption{NACO observations log of IRC+10216.} \begin{tabular}{ l c c c c r } \hline \hline Date & Filter & On-source & Seeing & Air- & Dyn. \\ & & exp. time & & mass & range \\ (UT) & & (s) & ($''$) & & (AFU) \\ \hline 22 Nov. 02 & NB $1.64$ & 128 & $0.6$ & $1.5$ & $28~700$ \\ & NB $2.17$ & 120 & $0.6$ & $1.6$ & $6200$ \\ 16 Mar. 03 & NB $1.26$ & 120 & $<$0.5 & $1.3$ & $6900$ \\ & NB $1.64$ & 70 & $<$0.5 & $1.3$ & $8300$ \\ & NB $2.17$ & 60 & $<$0.5 & $1.3$ & $4800$ \\ 18 Mar. 03 & NB $1.24$ & 210 & $0.6$ & $1.3$ & $7200$ \\ & NB $1.75$ & 103 & $0.7$ & $1.3$ & $41~500$ \\ & NB $2.17$ & 200 & $0.8$ & $1.3$ & $5200$ \\ & L$'$ & 183 & $0.6$ & $1.3$ & $92~500$ \\ \hline \end{tabular} \label{tabobs} \end{table}