Upper panel: relativistic PA as a function of pulsar phase for one small spot at different co-latitudes θ = 15°, 30°, 45°, 60°, 75°, and 90° is shown with black, red, blue, green, pink, and orange lines, respectively. NS parameters are M = 1.5 M_⊙, R = 12 km, ν = 600 Hz and inclination i = 60°. The spot is not visible at some phases for θ = 75°and 90°. Lower panel: relativistic corrections to the PA. The dotted lines indicate the SR correction angle χ_c, SR, which accounts for special relativity only. The solid lines correspond to the GR correction χ_c, GR, which accounts for both light bending and SR effects.