These all represent the orbital distance inside of which loose material (e.g. regolith) on the surface of the satellite closest to the primary would be pulled away, and likewise material on the side opposite the primary will also go away from, rather than toward, the satellite.
These all represent the orbital distance inside of which loose material (eg. regolith) on the surface of the satellite closest to the primary, would be pulled away and likewise material on the side opposite the primary will also go away from, rather than toward the satellite.