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Table 3.

Weighted fits of models 2 and 3 to LLR residuals.

Term t0 t1 sin(18.6 yr) cos(18.6 yr) sin(9.3 yr) cos(9.3 yr) WRMSpre WRMSpost
Unit (mas) (mas cy−1) (mas) (mas) (mas) (mas) (mas) (mas)
This work dX −0.38 ± 0.02 1.43 ± 0.18 −0.26 ± 0.02 −0.37 ± 0.01 0.526 0.463
dY −0.36 ± 0.03 −0.54 ± 0.19 −0.81 ± 0.02 −0.30 ± 0.01 0.672 0.581

ZC09 dX 0.27 ± 0.13 5.77 ± 3.25 0.00 ± 0.22 0.01 ± 0.13
dY −0.17 ± 0.13 1.07 ± 3.11 −0.02 ± 0.21 −0.22 ± 0.12


This work dX −0.28 ± 0.03 1.77 ± 0.19 −0.14 ± 0.04 −0.26 ± 0.02 0.20 ± 0.02 0.01 ± 0.02 0.526 0.458
dY −0.12 ± 0.04 0.02 ± 0.19 −0.25 ± 0.05 −0.24 ± 0.02 −0.05 ± 0.02 −0.40 ± 0.03 0.672 0.562

ZC09 dX 0.16 ± 0.15 3.52 ± 3.84 0.17 ± 0.27 0.12 ± 0.14 0.12 ± 0.16 0.32 ± 0.14
dY −0.22 ± 0.14 −0.16 ± 3.67 0.08 ± 0.26 −0.24 ± 0.14 0.10 ± 0.15 −0.01 ± 0.14

H18 dψ sin ϵ 0.58 ± 0.18 −0.09 ± 0.13 0.04 ± 0.12 −0.01 ± 0.12
dϵ −0.12 ± 0.17 −0.36 ± 0.16 −0.49 ± 0.12 0.17 ± 0.13

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