\begin{table}%T1
  \caption{\label{tab:hfs-mult}Results of the hyperfine fit on the observed spectral profile of the
             \ninhp$~(1{-}0)$ transition toward L1544. }
  \small
  %\centering
\par
  \begin{tabular}{ccccccc}
    \hline \hline \noalign{\smallskip}
    Line & \mcl{1}{c}{Rest frequency\tablefootmark{a}} & \mcl{1}{c}{$A$ coefficient} &\mcl{1}{c}{$V_{\rm LSR}$} & 
      \mcl{1}{c}{$\int T_{\rm mb}{\rm d}v$} & \mcl{1}{c}{$\Delta v$} & \mcl{1}{c}{$10^{3}\tau$\tablefootmark{b}} \\
    $F'-F$ & \mcl{1}{c}{(MHz)} & \mcl{1}{c}{$10^5~$s$^{-1}$} & \mcl{1}{c}{(km~s$^{-1}$)} & 
      \mcl{1}{c}{(mK~km~s$^{-1}$)} & \mcl{1}{c}{(km~s$^{-1}$)} & \\[0.5ex]
    \hline \noalign{\smallskip}
    $0{-}1$ & 91~208.5162 & 3.23(40) & --1.971\tablefootmark{c}   & 2.68(34) & \mcl{1}{c}{$\cdots$} &  2.31(20) \\
    $2{-}1$ & 91~205.9908 & 3.23(40) &  6.329(17) & 13.4(17) & 0.533(54)\tablefootmark{d}       & 11.6(11)  \\
    $1{-}1$ & 91~204.2602 & 3.23(40) & 12.018\tablefootmark{c}   &  8.1(10) & \mcl{1}{c}{$\cdots$} &  6.95(63) \\
    \hline 
  \end{tabular}
\tablefoot {Numbers in parentheses refer to
             $1\sigma$ uncertainties in units of the last quoted digit. 
\tablefoottext{a}{From \citet{Bizz-AA09-N2H+};}
\tablefoottext{b}{Optical depth derived assuming $T_{\rm ex} = 5.0\pm 0.1~{\rm K}$ from
                \citet{Caselli-ApJ02-L1544k};}
\tablefoottext{c}{The hyperfine splitting with respect to $F=2{-}1$ component was kept fixed 
                in the HFS analysis;}
\tablefoottext{d}{Gaussian FWHM. Assumed equal for all the components. }}
\end{table}