(a) Magnetic field components in MSO coordinates. (b) Magnetic field components in LMN coordinates, showing a bifurcated signature in ﹩{B}_{L}﹩. (c) Ion bulk velocity ﹩{V}_{L}﹩, exhibiting a clear ion jet. (d) Ion velocity components ﹩{V}_{M}﹩ and ﹩{V}_{N}﹩. (e) Walén test comparing plasma velocity and Alfvén velocity, with the linear fit shown. (f) Schematic illustration of the event, depicting the spacecraft trajectory relative to the background solar wind flow, together with the reconnection exhaust and reconnection site (not to scale).