Parallax and proper motion fits of G012.88+0.48, yielding an absolute parallax of 0.340 ± 0.036 mas. The positions of the maser spot at 29.4 (triangles) km s^-1 were measured relative to the water maser G012.68−0.18 and consecutively to the two background quasars J1808−1822 (blue) and J1825−1718 (red). Left panel: position on the sky with a label for the first and last epoch. Middle panel: east position offsets with parallax and proper motion fits versus time. Right panel: right ascension parallax fit with the best-fit proper motions removed, showing only the parallax signature.