Table 2: Summary of absolute motion (in [mas/yr]) for each field. The number of background galaxies used to compute the reference point is also indicated.
field $\mu_\alpha \cos{\delta}$ $\sigma_{ \mu_{\alpha} \cos{\delta} }$ $\mu_\delta$ $\sigma_{\mu_{\delta}}$ $N_{\rm gal}$
           
B +3.33 0.17 -17.53 0.17 12
C +3.14 0.73 -17.18 0.73 8
D +3.75 0.40 -17.81 0.40 13
average +3.39 0.15 -17.55 0.15 33

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