Preliminary Orbit of Asteroid 2010 JL33 on December 11, 2010 (Source: JPL Small-Body Database Browser Orbit Diagram)
New radar imagery for Asteroid 2010 JL33. From the video: While safely passing Earth, NASA's Goldstone Solar System Radar captured the rotation of asteroid JL33 -- an irregular, elongated object roughly 1.8 kilometers (1.1) miles wide. The video consists of 36-frames.
Link: YouTube Video ("NASA Radar Reveals Features on Asteroid")
Link: JPL Small-Body Database (2010 JL33))