\begin{table}%t1
%\centering
\par
\caption {Instrument filter setup and filter properties during the DI
  observations at ESO. 
  The broadband filters are annotated following the
  standard photometry designation. Note that $R_{\rm special}$ is a modified $R$~Bessell filter -- see {\tt http://www.eso.org/instruments/fors1/} for further
  details. The names of the narrowband gas filters (CN, C$_{2}$, C$_{3}$, NH$_{2}$)
  refer to the respective
  gaseous species that emit light in the filter passband. Dust continuum
  filters are labeled BC for "blue continuum'' and RC for "red continuum'',
  a narrowband OII filter was used to measure the dust continuum in the UV.
  A special Na filter was installed for imaging of the comet in the wavelength
  range of the sodium~D lines.\label{filter_list}}
\begin{tabular}{llcccc}
\hline\hline
Observatory/  & Light path & Filter & Central     & Band   & Max. \\
telescope/    &            & name   & wavelength  & width  & transmission \\
instrument    &            &        & (nm)        & (nm)   & \% \\
\hline
VLT/UT1/FORS2 & parallel   & $B$      & 429         & 88.0   & 64.0 \\            
              & beam       & $V$      & 554         & 111.5  & 88.0 \\
              &            & $R_{\rm special}$      & 655         & 165.0  & 95.0 \\
              &            & $I$      & 768         & 138.0  & 96.0 \\
\hline
LSO/NTT/EMMI  & blue arm - & OII    & 372.550     & 6.882  & 34.2 \\
              & convergent & CN     & 385.971     & 5.013  & 42.6 \\
              & beam       & C$_{3}$  & 405.229     & 7.538  & 58.8 \\
              & red arm -  & BC     & 442.164     & 3.670  & 67.3 \\
              & parallel   & C$_{2}$  & 511.069     & 12.278 & 85.7 \\
              & beam       & Na     & 589.347     & 2.300  & 59.2 \\  
              &            & NH$_{2}$ & 662.543     & 3.455  & 85.2 \\
              &            & RC     & 683.816     & 8.089  & 86.0 \\
\hline
\end{tabular}
\end{table}