\begin{table}%t1
\caption{\label{table:1}Overview of the CRIRES observations.}             % title of Table 
%\centerline
 {
\begin{tabular}{c c c c c c c c c c} % centered columns (4 columns) 
\hline\hline                         % inserts double horizontal lines 
Date & Time$^a$ 
                                                    & Settings & Molecules & Wavelength    
                                                    &  $r^b$
                                                    & $\Delta$$^c$ 
                                                    & $\dot{\Delta}$$^d$ 
                                                    & Airmass & Slit PA \\ 
~    & (UT) &~         &~          & coverage [cm$^{-1}$] & [AU] & [AU] & [km~s$^{-1}$] &~  & [deg]  \\  % table heading 
\hline                        % inserts single horizontal line 
January 28, 2008 & 1:28--2:47 & \#2 & H$_2$O, HCN, C$_{2}$H$_{2}$ & 3332.4--3263.4 & 1.027 & 0.523 & 24.798 & 1.36 & 74 \\
                 & 3:13--4:07 & \#1 & H$_{2}$O            & 3462.5--3377.0 & 1.027 & 0.524 & 24.865 & 2.03 & 74 \\ 
February 4, 2008 & 0:49--1:54 & \#1'& H$_{2}$O                              & 3406.2--3327.7 & 1.035 & 0.621 & 24.187 & 1.27 & 80 \\ 
                 & 2:20--3:23 & \#3 & CH$_{4}$, CH$_{3}$OH, C$_{2}$H$_{6}$  & 3404.8--2974.2 & 1.035 & 0.622 & 24.252 & 1.69 & 80 \\ 
                 & 3:53--4:11 & \#4 & CH$_{3}$OH                            & 2865.3--2799.6 & 1.035 & 0.622 & 24.275 & 2.52 & 80 \\ 
\hline
\end{tabular}} 
\par
$^a$ {$r$, $\Delta$, and $\dot{\Delta}$ listed in Cols.~6--8 are the values at the midpoint of this time interval;}
$^b$ {Heliocentric distance;}
$^c$ {Geocentric distance;}
$^d$ {Topocentric velocity of the comet.} 
\end{table}