2012 LZ1 imaged with iTelescope T16 on June 15, 2012. The image is a stack of 5x120 second exposures, stretched in FITS Liberator and stacked with ImageJ. Click to embiggen (it's big but worth it)
2012 LZ1 was imaged at 1:45 UT after its closest approach of 13-14 lunar-distances (that's the distance between the Earth and the Moon, 0.036 AU) on June 14 23:10 UT. The asteroid had just zipped past Barnard's Galaxy and the Little Gem Nebula when this series of images were taken.
Here's my animation.