Table 2: Probabilities ( $\alpha _{\rm p}$ and $\bar{\alpha}$) of finding a halo particle on the velocity diagram estimated via indirect methods of interloper treatment. $F_{<v_{\rm esc}}$ and $F_{<2r_{\rm v}}$ are fractions of bound particles and particles within $2r_{\rm v}$ respectively.
Halo projection $\alpha _{\rm p}$ $\bar{\alpha}$ $F_{<v_{\rm esc}}$ $F_{<2r_{\rm v}}$

x
$\rm0.957^{+0.014}_{-0.018}$ 0.946 0.958 0.909
y $\rm0.885^{+0.022}_{-0.027}$ 0.883 0.903 0.852
z $\rm0.926^{+0.020}_{-0.024}$ 0.927 0.905 0.856


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