First-order drift velocity given by Eq. (3) in the equatorial plane (Z_MSM = 0): (top) gradient-B term, (middle) curvature term, and (bottom) sum of both terms. The orientation of the velocity field is illustrated with unit vectors, while the magnitude is color-coded. The blue contour encloses the high-density core of the simulated plasma element. The magenta curve is the magnetopause.