Position of QSO 0102−2209 relative to the cluster A133. Smoothed X-ray emission from Vikhlinin (2013) is shown in purple, while the solid and dashed circles trace R₅₀₀ and R₂₀₀, respectively. The position of the quasar is marked by the dotted circle just south of the R₅₀₀ radius. The extents of the Chandra observations are shown for reference; the border of these observations is highlighted in red at the positions of the filaments identified by Vikhlinin (2013).