Indeed, the last passage was closer than the pending one in 2003 [Note: see 2003 Date explanation]. This is why we have stated that the crust shift during the prior shift was less than will be anticipated in 2003, as no sooner had the core started to shift, it moved to align with the passing Planet X. What happens on such close passage? There is a great deal of trash that trails behind Planet X, caught in its gravity field. Several moons, and lesser objects such as boulders and dust. There are likewise asteroids from the Asteroid Belt which attach during a passage, but can be torn away when a passage close to another gravitational object occurs. These minor objects assume new orbits, in many cases around more than one planet if they are in close proximity to each other at the time, and finally to become disconnected or to assume what is termed a Near Earth Orbit object. How do you suppose they got into those orbits in the first place?