The shuttle separated from the Station beginning 8:52 a.m. EDT, flew around it at a distance of 660 ft, then did a retrograde burst to spread itself apart from the Station.
The heat shield has been found in good shape for landing.
Depending upon the weather, it could touch down at KSC as early as 8:51 a.m. EDT Monday.
Follow the mission status at SpaceFlightNow.com
If it lands at the earliest opportunity, it will fly over the US from British Columbia: