\begin{table}%t4
\par
\caption{\label{tb:detailed}A detailed view of the redshift asymmetries in mock catalogues.}
%\centerline
 {
\begin{tabular}{lccccccr}
  \hline
  \hline
  Sample & $n_{\rm G}$ & $n_{+ \Delta z}$ & $n_{- \Delta z}$ & $n_{\pm \Delta z}$ &
  $+ \Delta z$ (\%) & $- \Delta z$ (\%) & $\pm \Delta z$ (\%)
  \\
  \hline 
  Mock1, gravitationally bound groups\\
  all groups ($n \leq 10$) & 675 & 282 & 259 & 134 & 50.5 $\pm$ 10.1 & 49.5
  $\pm$ 10.1 & 19.9 $\pm$ 2.5\\
  spiral ($T \geq 0.92$) dominant groups & 537 & 231 & 199 & 107 & 52.4 $\pm$
  10.6 & 47.6 $\pm$ 10.6 & 19.9 $\pm$ 2.7\\
  E/S0 ($T < 0.92$) dominant groups & 138 & 51 & 60 & 27 & 46.0 $\pm$ 16.0 &
  54.1 $\pm$ $16.0$ & 19.6 $\pm$ 4.4\\
  \hline
  Mock1, gravitationally unbound groups\\
  all groups ($n \leq 10$) & 709 & 340 & 246 & 123 & 58.3 $\pm$ 2.9 & 41.7 $\pm$
  2.9 & 17.3 $\pm$ 2.2\\
  spiral ($T \geq 0.92$) dominant groups & 616 & 297 & 209 & 110 & 59.0 $\pm$ 3.2 & 41.0
  $\pm$ 3.2 & 17.9 $\pm$ 2.8\\
  E/S0 ($T < 0.92$) dominant groups & 93 & 43 & 37 & 13 & 54.1 $\pm$ 7.1 & 45.9
  $\pm$ 7.1 & 14.0 $\pm$ 8.5\\
  \hline
  Mock1, bound, wrongly identified\\
  all groups ($n \leq 10$) & 289 & 142 & 110 & 37 & 56.3 $\pm$ 12.9 & 43.7
  $\pm$ 12.9 & 12.8 $\pm$ 4.2\\
  spiral ($T \geq 0.92$) dominant groups & 257 & 129 & 95 & 33 & 57.6 $\pm$ 12.8 & 42.4
  $\pm$ 12.8 & 12.8 $\pm$ 3.7\\
  E/S0 ($T < 0.92$) dominant groups & 32 & 13 & 15 & 4 & 46.4 $\pm$ 18.2 & 53.6
  $\pm$ 18.2 & 12.5 $\pm$ 12.0\\
  \hline
  Mock1, unbound, wrongly identified\\
  all groups ($n \leq 10$) & 338 & 193 & 96 & 49 & 66.8 $\pm$ 3.8 & 33.2 $\pm$
  3.8 & 14.5 $\pm$ 4.6\\
  spiral ($T \geq 0.92$) dominant groups & 297 & 171 & 83 & 43 & 67.6 $\pm$ 3.5 & 32.4
  $\pm$ 3.5 & 14.5 $\pm$ 4.8\\
  E/S0 ($T < 0.92$) dominant groups & 41 & 22 & 13 & 6 & 62.9 $\pm$ 9.7 & 37.1
  $\pm$ 9.7 & 14.6 $\pm$ 9.9\\
  \hline
  Mock2, gravitationally bound groups\\
  all groups ($n \leq 10$) & 5715 & 2327 & 2214 & 1174 & 51.3 $\pm$ 1.7 & 48.7
  $\pm$ 1.7 & 20.5 $\pm$ 0.7\\
  spiral ($T \geq 0.92$) dominant groups & 3649 & 1515 & 1386 & 748 & 52.3 $\pm$ 2.9
  & 47.7 $\pm$ 2.9 & 20.5 $\pm$ 1.2\\
  E/S0 ($T < 0.92$) dominant groups & 2066 & 801 & 839 & 426 & 48.8 $\pm$ 2.2 &
  51.2 $\pm$ 2.2 & 20.6 $\pm$ 2.5\\
  \hline
  Mock2, gravitationally unbound groups\\
  all groups ($n \leq 10$) & 6385 & 2760 & 2444 & 1181 & 52.9 $\pm$ 1.6 & 47.1
  $\pm$ 1.6 & 18.5 $\pm$ 0.9\\
  spiral ($T \geq 0.92$) dominant groups & 5437 & 2357 & 2080 & 1000 & 53.0 $\pm$
  1.7 & 47.0 $\pm$ 1.7 & 18.4 $\pm$ 1.1\\
  E/S0 ($T < 0.92$) dominant groups & 947 & 402 & 364 & 181 & 52.4 $\pm$ 2.8 &
  47.6 $\pm$ 2.8 & 19.1 $\pm$ 1.7\\
  \hline
  Mock2, bound, wrongly identified\\
  all groups ($n \leq 10$) & 2618 & 1193 & 1028 & 397 & 53.7 $\pm$ 2.2 & 46.3
  $\pm$ 2.2 & 15.2 $\pm$ 0.7\\
  spiral ($T \geq 0.92$) dominant groups & 2151 & 980 & 840 & 331 & 53.8 $\pm$ 2.7 &
  46.2 $\pm$ 2.7 & 15.4 $\pm$ 1.0\\
  E/S0 ($T < 0.92$) dominant groups & 467 & 213 & 188 & 66 & 53.1 $\pm$ 1.7 &
  46.9 $\pm$ 1.7 & 14.1 $\pm$ 3.4\\
  \hline
  Mock2, unbound, wrongly identified\\
  all groups ($n \leq 10$) & 3591 & 1661 & 1379 & 551 & 54.6 $\pm$ 1.9 & 45.4
  $\pm$ 1.9 & 15.3 $\pm$ 1.3\\
  spiral ($T \geq 0.92$) dominant groups & 3291 & 1535 & 1260 & 496 & 54.8 $\pm$ 2.0 &
  45.2 $\pm$ 2.0 & 15.1 $\pm$ 1.4\\
  E/S0 ($T < 0.92$) dominant groups & 300 & 126 & 119 & 55 & 51.4 $\pm$ 5.6 &
  48.6 $\pm$ 5.6 & 18.3 $\pm$ 4.1\\
  \hline
\end{tabular}}
\medskip 
\par
Note: Sample is the subsample of the mock catalogue, $n_{\rm G}$ is the number of
groups, $n_{+ \Delta z}$ is the number of groups with positive redshift excess,
$n_{- \Delta z}$ is the number of groups with negative redshift excess, $n_{\pm
\Delta z}$ is the number of groups with no excess, $+ \Delta z$ is the percentage
of groups with positive redshift excess when ties have been removed, $- \Delta z$
is the percentage of groups with negative redshift excess when ties have been
removed and $\pm \Delta z$ is the percentage of groups having equal number of
negative and positive redshifts. Errors for mock catalogues are standard
deviation errors between five different observation points.
\end{table}