\begin{table}%t4
\caption{Initial parameters of QHC 147P/Kushida-Muramatsu (equinox J2000) and their $\pm$$1 \sigma$ error estimates (Nakano \cite{nakano02}).}
\label{tbl:147Porbit}
%\centering
\small
\begin{tabular}{lcc}
\hline\hline
Osculation epoch (TT) & 2001 May 11.0 & \\
Perihelion time $T$ (TT) & 2001 Apr. 29.48509 & $\pm$$0.00081$ \\
               & ($\Rightarrow M=1\fdg52643$) & \\
Perihelion distance $q$ (AU) & 2.7524408 & $\pm$$0.0000019$ \\
Semimajor axis $a$ (AU) & 3.8094146 & $\pm$$0.0000010$ \\
Eccentricity $e$ & 0.2774636 & $\pm$$0.0000005$ \\
Argument of perihelion $\omega$ & $347\fdg55482$ & $\pm$$0\fdg00047$ \\
Longitude of ascending node $\mathit{\Omega}$ & $93\fdg69336$ & $\pm$$0\fdg00044$ \\
Inclination $i$  & $2\fdg36694$ & $\pm$$0\fdg00004$ \\
Number of astrometric positions &  197 & \\
Astrometric arc  & 1993 Dec. 08--2002 Mar. 20 & \\ 
     & 3024 days (8.28 yr) & \\
RMS residual & $0\farcs85$ & \\
\hline
\end{tabular}
\end{table}