\begin{table}%t3
\caption{\label{table_fragmentG}Component G: observations log.} 
\small%\centerline
 {
\begin{tabular}{c c c c c c c c c}
\hline \hline
Date & Night &cc&UT& Filter & $r_{\rm h}$& $\Delta$ &PA & $\alpha$ \\
2006 & & & & &(AU)& (AU)&(deg)&(deg)\\
\hline
Apr. 13& mc&n& 03:45--03:59& $R$& 1.23&0.28&213.0&31.2\\
Apr. 16& pc&n& 01:02--01:12& $R$& 1.21&0.25&209.8&31.2\\
Apr. 26& pp&n& 02:41--02:55& $R$& 1.13&0.17&203.8&42.0\\
Apr. 29& pp&n& 01:14& spectrum & 1.10&0.15&204.3&45.7\\
May 02& pp&n& 01:43--01:58& $R$& 1.08&0.12&206.7&50.5\\
\hline
\end{tabular}}
\medskip
Night: mc~= mostly clear, pp~= partially photometric, pc~= partially cloudy;
cc: presence (y) or absence (n) of cross-calibration;
$r_{\rm h}$ and $\Delta$ are the heliocentric and geocentric distance of the comet during the observations, respectively;
PA~is the position angle of the extended Sun-fragment radius vector;
$\alpha$~is the phase angle Sun-comet-observer.
\end{table}