Imported 2012 DA14 using MPC importer. It places it in the wrong place in the sky compared with the positions reported by MPC and JPL Horizons - all using the same site. I was looking at its closest approach (on 15 Feb 2013), using Kielder Observatory as the site. The values for Az/El, RA/Dec and distance are all wrong. I checked that the values in the ssytem.ini file matched those on MPC site.
Error may be becuase DA14 gets so close (~36,000 km), as results are much more accurate for slightly more distant Solar System objects I have added (e.g. comets ISON & PanStarrs).