\begin{table}%t3
    \caption{Orbital parameters of the target comets.}
     \label{OrbitParam}
     %\renewcommand{\footnoterule}{}			
     %\centerline
{\begin{tabular}{c c c c c c c c c}
     \hline\hline
     \noalign{\smallskip}
      Comet & $a$ (AU)$^a$ & $q$ (AU)$^b$
      & $t_{\rm p}^c$ 
      & {\it e}$^d$ & P (year)$^e$
      & Peri ($^{\circ}$)$^f$
      & Node ($^{\circ}$)$^g$
      & {\it i} ($^{\circ}$)$^h$ \\
     \hline
     C/2003 O1 (LINEAR) & $-4902.61$ & 6.847 & 2004 Mar. 17 & 1.001 & -- & 81.62 & 347.64 &
     117.98 \\
     C/2004 K1 (Catalina) & 1816.25 & 3.399 & 2005 Jul. 5 & 0.998 & 7.74 $\times$ 10$^4$ & 97.75 
     & 326.92 & 153.74 \\
     \hline
     \end{tabular}}
     \medskip
     $^a$ Semimajor axis. $^b$ Perihelion distance. $^c$ Time of perihelion passage. 
     $^d$ Orbital eccentricity $^e$ Orbital period. $^f$ The J2000 argument of perihelion. \\ $^g$ The J2000 longitude of the ascending node. 
     	$^h$ Inclination.			
    \end{table}