\begin{table}%t2
\caption{\label{eph_table}Phase-coherent ephemerides for \psrtar\ as derived from RXTE PCA (monitoring) data.}
%%\centerline

{\small
\begin{tabular}{lccclllcc}
\hline\hline
Entry &  Start &  End  &   $t_0$, Epoch   & \multicolumn{1}{c}{$\nu$}   & \multicolumn{1}{c}{$\dot\nu$}               & \multicolumn{1}{c}{$\ddot\nu$}                  & $\Phi_{0}$
  & Validity range\\
 \#   &  [MJD] & [MJD] &     [MJD,TDB]    & \multicolumn{1}{c}{[Hz]}    & \multicolumn{1}{c}{$\times 10^{-11}$ Hz/s}  & \multicolumn{1}{c}{$\times 10^{-21}$ Hz/s$^2$}  &           
  &  (days)   \\
\hline
\multicolumn{8}{c}{\textit{Pre-Outburst}}\\
0         & 51~286 & 51~290 & 51~286.0     & 3.08273789(23)   & --6.98(15)              &   0.0 (fixed)              & 0.6850  & 4\\
\\
1$^1$     & 51~574 & 52~237 & 51~574.0     & 3.0810613509(18) & --6.73176(1)            &   3.821(4)                 & 0.9825  & 663\\
2$^2$     & 52~369 & 52~837 & 52~523.0     & 3.0755528807(5)  & --6.707486(9)           &   3.86(3)                  & 0.6501  & 468\\
3         & 52~915 & 53~148 & 52~915.0     & 3.0732836450(59) & --6.6963(1)             &   4.98(13)                 & 0.1971  & 233\\
4         & 53~030 & 53~465 & 53~030.0     & 3.0726185382(34) & --6.69068(3)            &   3.93(2)                  & 0.5030  & 435\\
5$^3$     & 53~464 & 53~880 & 53~464.0     & 3.0701124555(45) & --6.67599(4)            &   3.78(3)                  & 0.8985  & 416\\
\multicolumn{8}{c}{\textit{Outburst-B}}\\
6         & 53~978 & 54~033 & 53~997.0     & 3.0669883665(67) & --6.8688(7)             &   161(15)                  & 0.3092  & 55\\
\multicolumn{8}{c}{\textit{Post-Outburst; coherence fully caught-up}}\\
7         & 54~126 & 54~229 & 54~126.0     & 3.066215110(19)  & --6.8726(8)             &   202(2)                   & 0.2658  & 103\\
8         & 54~237 & 54~340 & 54~237.0     & 3.065565121(15)  & --6.7297(7)             &   15(2)                    & 0.9120  & 103\\
9         & 54~340 & 54~411 & 54~340.0     & 3.064967085(26)  & --6.707(2)              &   49(6)                    & 0.8056  &  71\\
\hline
\end{tabular}}
\par
\medskip
$^1$ Small glitch reported by \citet{livingstone06} near MJD $52~210\pm 10$.\\
$^2$ Phase coherence lost over 78 d data gap starting at MJD 52~837 \citep[see also][]{livingstone06}.\\
$^3$ Phase coherence lost after MJD 53~880 (May 24, 2006) during the magnetar-like outburst \citep[][]{gavriil08}.
\end{table}