Relation between (v_α − v_p)/v_A and v_p at four heliocentric distance ranges. The top row displays the relations during solar minimum, while the bottom row shows them during solar maximum. From left to right, the four distance ranges are from 9.80 R_⊙ to 17.20 R_⊙, 17.20 R_⊙ to 25.80 R_⊙, 25.80 R_⊙ to 34.41 R_⊙, and 34.41 R_⊙ to 43.01 R_⊙. The red rectangles highlight the CH wind measured by PSP during E10 from 17 November 14:00 to 21 November 18:00 (S. D. Bale et al. 2023).