Results of the parallax fit for DR 21 after removing proper motions and positional offsets. The declination data have been offset for clarity. Top row, from left to right, first panel: combined fit on 7 maser spots from DR 21A with respect to J2045. Second panel: fit to the averaged data of the 7 maser spots of DR 21A. Third panel: single fit to DR 21B maser spot at 3.96 km   s^-1. Bottom row, from left to right, first panel: combined fit on 3 maser spots in DR 21(OH). Second panel: fit to the averaged data of the 3 maser spots of DR 21(OH). Third panel: combined fit on the averaged data set of DR 21A, DR 21(OH), and the single maser spot of DR 21B. The dots mark the data points in right ascension, while the filled triangles mark the declination data points. The solid lines show the resulting parallax fit in right ascension and the dashed lines show the fit in declination.