\begin{table}%t1
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\par
\caption {\label{tablespectra}Measured mean velocities and velocity dispersions for NGC~3311. }
%\centering
\par
\begin{tabular}{l c c c c c c c c c c}
\hline\hline
\noalign{\smallskip} 
Instr. & $R$          &     PA   &$V_{\rm ppxf 1}$   & $\sigma_{\rm ppxf 1}  $     &$V_{\rm ppxf 2} $  & $\sigma_{\rm ppxf 2}$     &$V_{\rm FCQ}$  & $\sigma_{\rm FCQ}$    & $\langle V\rangle$     &  $\langle \sigma \rangle$               \\
       & (arcsec)   &            &  ($\kms$)           &  ($\kms$)                   &($\kms$)            & ($\kms$)                  &($\kms$)        & ($\kms$)                 & ($\kms$)     &   ($\kms$)                 \\
(1) & (2) & (3) & (4) & (5) & (6) & (7) & (8) & (9) & (10) & (11)\\
\hline                                                                                                                                                                                                  
\noalign{\smallskip}                                                                                                                                                                                    
GMOS-S & $  38.6  $ &$ 63^\circ$ &  $ 38 \pm 33 $  & $399 \pm 38 $               &$-47 \pm 33 $    & $381 \pm 38  $            & $-62 \pm 45 $ &  $435 \pm 48 $       &$ -17 \pm31 $&$ 401 \pm 23 $         \\
GMOS-S & $  14.89 $ &$ 63^\circ$ &  $-18 \pm  8 $  & $238 \pm 13 $               &$-50 \pm  8 $    & $228 \pm 13  $            & $-49 \pm  8 $ &  $241 \pm 14 $       &$ -39 \pm11 $&$ 235 \pm  8 $         \\
GMOS-S & $   7.88 $ &$ 63^\circ$ &  $ -7 \pm  8 $  & $209 \pm 15 $               &$-21 \pm  8 $    & $203 \pm 15  $            & $ 19 \pm  5 $ &  $193 \pm  5 $       &$   5 \pm12 $&$ 195 \pm  5 $         \\
GMOS-S & $   3.8  $ &$ 63^\circ$ &  $-14 \pm  7 $  & $194 \pm 13 $               &$-27 \pm  7 $    & $191 \pm 13  $            & $  1 \pm  3 $ &  $145 \pm  3 $       &$  -5 \pm7  $&$ 151 \pm 11 $        \\
GMOS-S & $   0    $ &$ 63^\circ$ &  $-10 \pm  6 $  & $204 \pm 10 $               &$-22 \pm  6 $    & $201 \pm 10  $            & $ -3 \pm  3 $ &  $143 \pm  3 $       &$  -8 \pm5  $&$ 154 \pm 16 $        \\
GMOS-S & $  -4.09 $ &$ 63^\circ$ &  $  2 \pm  6 $  & $206 \pm 14 $               &$-14 \pm  6 $    & $204 \pm 14  $            & $ 16 \pm  4 $ &  $169 \pm  4 $       &$   5 \pm9  $&$ 174 \pm  9 $        \\
GMOS-S & $  -8.05 $ &$ 63^\circ$ &  $ 23 \pm 11 $  & $244 \pm 20 $               &$  9 \pm 11 $    & $200 \pm 20  $            & $ 26 \pm  7 $ &  $182 \pm  8 $       &$  21 \pm5  $&$ 191 \pm 14 $        \\
GMOS-S & $  -15   $ &$ 63^\circ$ &  $ 29 \pm 11 $  & $295 \pm 16 $               &$ -6 \pm 11 $    & $267 \pm 16  $            & $ 30 \pm  7 $ &  $200 \pm  9 $       &$  22 \pm11 $&$ 231 \pm 28 $        \\
GMOS-S & $  -34   $ &$ 63^\circ$ &  $111 \pm 13 $  & $323 \pm 22 $               &$ 50 \pm 13 $    & $252 \pm 22  $            & $ -8 \pm 17 $ &  $292 \pm 18 $       &$  60 \pm33 $&$ 289 \pm 19 $        \\
FORS2  & $  -47   $ &$ 45^\circ$ &  $ 76 \pm 12 $  & $479 \pm 14 $               &$ 71 \pm 12 $    & $433 \pm 14  $            & $117 \pm  7 $ &  $466 \pm 12 $       &$ 100 \pm15 $&$ 460 \pm 13 $        \\
FORS2  & $  -54   $ &$ 83^\circ$ &  $ 67 \pm 13 $  & $456 \pm 15 $               &$ 87 \pm 13 $    & $447 \pm 15  $            & $124 \pm  8 $ &  $467 \pm 14 $       &$ 105 \pm17 $&$ 457 \pm  8 $        \\
FORS2  & $  -67   $ &$  6^\circ$ &  $ 87 \pm 53 $  & $471 \pm 49 $               &$ 66 \pm 53 $    & $454 \pm 49  $            & $ 97 \pm 55 $ &  $476 \pm 97 $       &$  83 \pm31 $&$ 464 \pm 33 $        \\
FORS2  & $ -100   $ &$114^\circ$ &  $ 14 \pm 21 $  & $437 \pm 35 $               &$ 47 \pm 21 $    & $432 \pm 35  $            & $ 50 \pm 29 $ &  $405 \pm 51 $       &$  35 \pm13 $&$ 429 \pm 22 $        \\
\hline
\end{tabular}
\tablefoot {For
details see text. The galaxy's systemic velocity $V_{\rm sys} = 3800$~$\kms$\ has been
obtained by a linear fit to the velocities in the central~$20\arcsec$ and has then
been subtracted from the measurements. This value includes heliocentric and
relativistic corrections.\\
 Column 1: instrument; 
          Col. 2: radial distance from center of NGC~3311; 
          Col. 3: position angle of data with respect to NGC~3311's center; 
          Col. 4: velocity measured with PPXF (using template determined at $R=0\arcsec$), relative to the galaxy systemic velocity;
          Col. 5: velocity dispersion measured with PPXF (using template determined at $R=0\arcsec$);
          Col. 6: velocity measured with PPXF (free template), relative to the galaxy systemic velocity;
          Col. 7: velocity dispersion measured with PPXF (free template);
          Col. 8: velocity measured with FCQ, relative to the galaxy systemic velocity;
          Col. 9: velocity dispersion measured with FCQ;
          Col. 10: weighted average velocity;
          Col. 11: weighted average velocity dispersion.}
\end{table}