2, we list the separation in pixels and arc sec (computed with the pixel scales from Table 1) and also the PA in degrees, as corrected with the detector orientation given in Table 1 for each epoch.

[l|ccc|cc|cc|c]{}\
Epoch & separation & separation & sep. change & Position Angle & Change in PA & & sign. for\
year & (absolute) & (absolute) & since 2005.4 & (absolute) & since 2005.4 & & orbital\
& \[pixel\] (a)& \[mas\] (a) & \[mas\] (b) & \[deg\] (a) & \[deg\] (b) & re PA & re sep & motion (e)\
2004.48 & $55.53 \pm 0.11$ & $734.7 \pm 3.1$ & (c) & $275.48 \pm 0.25$ & (c) & 3.2 $\sigma$ & 4.5 $\sigma$ & –\
2005.40 & $55.52 \pm 0.13$ & $735.1 \pm 3.3$ & $0   \pm 0.5$ & $276.00 \pm 0.34$ & $0 \pm 0.042$ & – & – & –\
2005.60 & $55.34 \pm 0.20$ & $733.3 \pm 3.9$ & $-1.8 \pm 1.2$ & $275.87 \pm 0.37$ & $-0.13 \pm 0.14$ & 0.9 $\sigma$ & 1.1 $\sigma$ & 0.5 $\sigma$\
2006.14 & $55.13 \pm 0.12$ & $729.8 \pm 3.3$ & $-5.3 \pm 1.0$ & $276.14 \pm 0.35$ & $0.14 \pm 0.05$ & 