Notes. A portion of this table is shown here. The entire version will be available as a machine-readable form at the CDS and at the authors’ webpage. Colums 1 and 2 are the Galactic longitude and latitude; Cols. 3 and 4 list the median velocity and the peak velocity of the maser lines, the reference is listed in Col. 5; Cols. 6−8 list the photometric or trigonometric distance, its uncertainty and the reference when available; Col. 9 is the note for the kinematic distance ambiguity; the reference is shown in Col. 10; Cols. 11 and 12 list the distance to the GC and the distance to the Sun, the kinematic distances when adopted are calculated with a flat rotation curve with the IAU standard R₀ = 8.5 kpc and Θ₀ = 220 km s^-1 and the standard solar motions; Cols. 13 and 14 are the same as Cols. 11 and 12 except with fundamental parameters R₀ = 8.3 kpc and Θ₀ = 239 km s^-1 (Brunthaler et al. 2011) and the solar motions of Schönrich et al. (2010); Cols. 15 and 16 are the same as Cols. 11 and 12, except with the rotation curve of Brand & Blitz (1993).

Reference. ab09: Anderson & Bania (2009); bdc01: Blum et al. (2001); bbs+08: Bartkiewicz et al. (2008) brm+09: Brunthaler et al. (2009); bph+06: Busfield et al. (2006); cmr+75: Caswell et al. (1975); chr+14: Choi et al. (2014); dlr+11: Dzib et al. (2011); dwbw80: Downes et al. (1980); gcf+12: Green et al. (2012); gm11: Green & McClure-Griffiths (2011); hbc+07: Hirota et al. (2007); hbc+07b: Honma et al. (2007); hhk+11: Honma et al. (2011); irm+13: Immer et al. (2013); kns+11: Kurayama et al. (2011); kjb+03: Kolpak et al. (2003); mrm+09: Moscadelli et al. (2009); msh+11: Motogi et al. (2011); mdf+11: Moisés et al. (2011); mcr+11: Moscadelli et al. (2011); mdf+11: Moisés et al. (2011); nnh+11: Niinuma et al. (2011); okh+10: Oh et al. (2010); oah+13: Olmi et al. (2014); pmg08: Pandian et al. (2008); pmg09: Pandian et al. (2009); pmb05: Pestalozzi et al. (2005); rjh+09: Roman-Duval et al. (2009); rbr+10: Rygl et al. (2010); rbs+12: Rygl et al. (2012); rmb+09: Reid et al. (2009a); swa+04: Sewilo et al. (2004); syby87: Solomon et al. (1987); srm+09: Sanna et al. (2009); shr+10: Sato et al. (2010a); sxc+14: Sun et al. (2014); sh10: Stead & Hoare (2010); uhl12: Urquhart et al. (2012); wam82: Wink et al. (1982); wxm+12: Wu et al. (2012); wsr+14: Wu et al. (2014); xrzm06: Xu et al. (2006); xlh+08: Xu et al. (2008); xrm+09: Xu et al. (2009); xmr+11: Xu et al. (2011); xlr+13: Xu et al. (2013); zzr+09: Zhang et al. (2009).