RVM fits for selected single-pulse segments of RRAT J2237+2828. Following the criteria of S. Johnston et al. (2024), the fitting intervals were selected based on high phase coherence to avoid orthogonal polarization mode jumps. (a) Burst 9 fit yields α ≈ 44﹩\mathop{.}\limits^{\unicode{x000b0}}﹩8 and β ≈ 90﹩\mathop{.}\limits^{\unicode{x000b0}}﹩0, suggesting a grazing line of sight. (b) Burst 21 fit favors α ≈ 171﹩\mathop{.}\limits^{\unicode{x000b0}}﹩3 and β ≈ 17﹩\mathop{.}\limits^{\unicode{x000b0}}﹩4, indicating a closer approach to the magnetic axis.