Here's the spacecraft trajectory from May 15 to June 2 in the Bennu-centric mean ecliptic and equinox of J2000 reference frame.
The popup label shows the date, the radius vector (m), the altitude above Bennu (m), the spacecraft inertial speed (Vi, mm/s) and the speed relative to the surface of Bennu (Vs, mm/s).
Here's the same graph as above, but in the Bennu-centric Sun-North reference frame.
Instead of the inertial speed, the popup label shows the spacecraft speed in the Bennu-fixed rotating frame (Vbfr, mm/s).