Parallaxes and proper motion fits for G021.87+00.01, G037.82+00.41, G060.57–00.18, and G070.29+01.60. Filled and open symbols represent motion with respect to different reference quasars in the order they appear in Table 1. Left panels: total sky motion, the y-axis is north–south offsets, and the x-axis is east–west offsets. Center panels: time-varying positions in north–south (triangles) and east–west (squares) directions versus time. The x-axis is time in years, while the y-axis is the offset in the corresponding direction. Right panels: proper motion–subtracted time-varying positions in aforementioned directions. For clarity, R.A. and decl. signatures for each reference quasar have been offset from one another.

(The data used to create this figure are available in the online article.)

(The data used to create this figure are available.)