Kinematics of Parsec-scale Jets of Gamma-Ray Blazars at 43 GHz during 10 yr of the VLBA-BU-BLAZAR Program

We analyze the parsec-scale jet kinematics from 2007 June to 2018 December of a sample $\gamma$-ray bright blazars monitored roughly monthly with Very Long Baseline Array at 43 GHz under VLBA-BU-BLAZAR program. implement novel piece-wise linear fitting method derive 521 distinct emission knots total 3705 intensity images in 22 quasars, 13 BL Lacertae objects, and 3 radio galaxies. Apparent speeds these components range $0.01c$ $78c$, 18.6\% (other than "core") are quasi-stationary. One-fifth moving exhibit non-ballistic motion, acceleration along within 5 pc core (projected) deceleration farther out. These accelerations occur mainly locations coincident quasi-stationary features. calculate physical parameters 273 statistically significant including their Doppler factors, Lorentz viewing angles. determine typical values for each average subclass active galactic nuclei. investigate variability position angle over ten years monitoring. The fluctuations galaxies tend be parallel jet, while no directional preference is seen quasars objects. find connection between states properties, brighter cores typically reaching higher maxima during flares.