Parallax and proper motion data and fits for our 6.7 GHz methanol and 22 GHz water masers. The black symbols show the average of all quasar positions for 6.7 GHz masers. In each panel, the data of different maser spots are offset for clarity. First panel: measured position of the maser on the sky. The positions expected from the fit are shown as open circles. Second panel: east (upper part, solid lines) and north (lower part, dashed lines) position offsets vs. time. Third panel: as second panel, but with proper motion removed, showing only the parallax effect for the maser underlined in the legend. (c) 6.7 GHz methanol maser − G028.14−00.00. (d) 6.7 GHz methanol maser − G029.86−00.04. (e) 6.7 GHz methanol maser − G029.95−00.01. (f) 22 GHz water maser − G029.98+00.10. (g) 6.7 GHz methanol maser − G030.22−00.18. (h) 6.7 GHz methanol maser − G030.41−00.23. (i) 6.7 GHz methanol maser − G030.70−00.06 (j) 6.7 GHz methanol maser − G030.74−00.04. (k) 6.7 GHz methanol maser − G030.78+00.20. (l) 6.7 GHz methanol maser − G030.81−00.05. (m) 6.7 GHz methanol maser − G030.97−00.14. (n) 22 GHz water maser − G031.41+00.30. (o) 6.7 GHz methanol maser − G032.04+00.05. (p) 6.7 GHz methanol maser − G033.09−00.07.