Accelerations along the radial coordinate as a function of the stars' projected radius, assuming R ₀ = 8.23 kpc. The theoretical maximum acceleration (| a| _z0 ) for the nominal black hole mass of 4.6×10 ⁶ M _☉ is shown as the dashed curve, with the 1σ upper and lower boundaries shown as dotted curves. We detect six significant accelerations out to R = 1 5 (0.06 pc), shown with 1σ error bars. These sources have known line-of-sight distances and therefore have the best determined orbital solutions. Stars with 3σ acceleration upper limits below the theoretical maximum acceleration are shown as downward pointing arrows and have strong constraints on their line-of-sight distances.