\begin{table}%T2 \caption{Mars ephemerides for the observations (from JPL Horizon server at {\tt http://ssd.jpl.nasa.gov/}).} \label{tabmars} %\centerline { \begin{tabular}{lcccrcrcc} \hline\hline Date UT & Equatorial & Geocentric & Phase & \multicolumn{2}{c}{Sub-Earth point} & \multicolumn{2}{c}{Sub-Solar point} & $L$s$^1$ \\ \cline{5-6\hspace{-0.1cm}} \cline{7-8\hspace{0.1cm}} & diameter & distance & angle & long. & lat.& long. & lat. & \\ yyyy/mm/dd.dd & [\arcsec]& [AU] & [\degr]& [\degr]& [\degr] & [\degr] & [\degr] & [\degr]\\ \hline 2003/06/14.604 & 14.16 & 0.662 & 40.700 & 150.94 & $-$21.15 & 191.61 & $-$9.74 & 203.14 \\ 2003/06/15.111 & 14.23 & 0.658 & 40.618 & 328.59 & $-$21.16 & 9.21 & $-$9.87 & 203.45 \\ 2003/06/16.611 & 14.44 & 0.649 & 40.366 & 134.25 & $-$21.21 & 174.73 & $-$10.23 & 204.35 \\ 2003/06/18.396 & 14.70 & 0.637 & 40.047 & 39.71 & $-$21.25 & 79.99 & $-$10.65 & 205.42 \\ 2003/11/02.056 & 14.78 & 0.633 & 38.240 & 105.10 & $-$23.70 & 63.26 & $-$23.69 & 290.84 \\ 2003/11/03.167 & 14.61 & 0.641 & 38.483 & 134.51 & $-$23.82 & 92.40 & $-$23.57 & 291.51 \\ 2003/11/05.611 & 14.24 & 0.658 & 38.984 & 271.16 & $-$24.08 & 228.51 & $-$23.31 & 293.00 \\ 2003/11/06.313 & 14.14 & 0.663 & 39.120 & 156.96 & $-$24.15 & 114.16 & $-$23.23 & 293.43 \\ 2003/11/08.222 & 13.86 & 0.676 & 39.471 & 106.17 & $-$24.35 & 63.00 & $-$23.01 & 294.59 \\ 2003/11/09.382 & 13.69 & 0.684 & 39.671 & 152.56 & $-$24.46 & 109.18 & $-$22.88 & 295.29 \\ \hline \end{tabular}} \medskip $^1$ Solar longitude from the vernal point of Mars (e.g. $L$s~=~0\degr\ for the spring equinox of northern hemisphere and $L$s~=~180\degr\ for the beginning of spring in the southern hemisphere). \end{table}