\begin{table}%t2
\caption{\label{eph_table}Phase-coherent ephemerides for \psrtar\ as derived from RXTE PCA (monitoring) data.}
%\centerline
{\small
\begin{tabular}{lccclllcr}
\hline\hline\noalign{\smallskip}
Entry &  Start &  End  &   $t_0$, Epoch   & \multicolumn{1}{c}{$\nu$}   & \multicolumn{1}{c}{$\dot\nu$}               & \multicolumn{1}{c}{$\ddot\nu$}                  & $\Phi_{0}^{3}$
  & 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$^2$}  &           
  &  \multicolumn{1}{c}{(days)}   \\
\hline\noalign{\smallskip}
0         & 50~721 & 50~722 & 50~721.0     & 15.23~0153381(92) & --4.489  (fixed)        &   0.0 (fixed)              & 0.2931  & 2\\
\vspace{-2mm}\\
1         & 52~138 & 52~141 & 52~138.0     & 15.22~4659060(16) & --4.489(16)             &   0.0 (fixed)              & 0.5389  & 4\\
\vspace{-2mm}\\
2         & 52~343 & 52~433 & 52~343.0     & 15.22~3863557(3)  & --4.49~605(13)           &   +1.96(38)                & 0.6540  & 91\\
3         & 52~433 & 52~515 & 52~433.0     & 15.22~3514035(4)  & --4.49~086(20)           &   --7.98(62)                & 0.7751  & 83\\
4$^1$     & 52~639 & 52~752 & 52~639.0     & 15.22~27187~742(4) & --4.51~063(1)            &   0.0 (fixed)              & 0.4147  & 114\\
\vspace{-2mm}\\
5         & 53~063 & 53~173 & 53~063.0     & 15.22~11188~258(7) & --4.56~381(2)            &   0.0 (fixed)              & 0.4814  & 111\\
6         & 53~173 & 53~312 & 53~173.0     & 15.22~06851~395(13)& --4.55~932(4)            &   +5.80(8)                 & 0.3170  & 140\\
7         & 53~312 & 53~401 & 53~312.0     & 15.22~01380~229(35)& --4.54~739(19)           &   +1.36(49)                & 0.3458  &  90\\
8         & 53~401 & 53~469 & 53~401.0     & 15.21~97884~405(37)& --4.54~444(25)           &   +12.0(9)                 & 0.3273  &  69\\
9         & 53~469 & 53~546 & 53~469.0     & 15.21~95216~777(26)& --4.53~041(15)           &   +7.18(47)                & 0.1970  &  78\\
10        & 53~546 & 53~637 & 53~546.0     & 15.21~92204~400(23)& --4.52~131(12)           &   +1.85(32)                & 0.6030  &  92\\
11        & 53~637 & 53~726 & 53~637.0     & 15.21~88650~817(24)& --4.51~951(12)           &   +28.5(3)                 & 0.1413  &  90\\
12        & 53~726 & 53~813 & 53~726.0     & 15.21~85183~927(26)& --4.50~300(14)           &   +16.8(4)                 & 0.2436  &  88\\
\hline\noalign{\smallskip}
13$^2$    & 53~726 & 53~764 & 53~745.0     & 15.21~84445~054(20)& --4.49~904(15)           &   --10.3(61)                & 0.1147  &  39\\
14$^2$    & 53~750 & 53~814 & 53~782.0     & 15.21~83007~045(13)& --4.49~502(8)            &   +29.1(16)                & 0.6055  &  65\\
\hline
\end{tabular}}
\par
\tablefoot{$^1$ A glitch occurred between MJD 52~515 and 52~571 \citep[see][for more information]{liv2009}. This entry describes the last part of the glitch recovery period. Its validity is questionable given the low number of TOA's, namely 4, translating  to 1 degree of freedom in the TOA fit procedure.
$^2$ Ephemeris from Jodrell Bank radio data.
$^3$ $\Phi_{0}$ is the phase offset to be applied to obtain consistent radio-alignment (see Eq.~(\ref{eq:phase}) in Sect.~\ref{sect_tm_xrc}).}
\end{table}