Model fitting of the kinematics for knot e: trajectory Zn-Xn, core separation rn(t), coordinates Zn(t) and Xn(t), the modeled apparent velocity/viewing angle and Lorentz/Doppler factor. Its ejection time is assumed to be t0 = 1996.78 (BQS17). Two curvatures in its trajectory at Z = 18 mas (rn = 0.50 mas) and Z = 115 mas (rn = 3.1 mas) are introduced.
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