(308635) 2005 YU55

and the Moon on 8–9 November 2011. In February 2010, was rated 1 on the Torino Scale for a potential pass near Earth on 10 November 2103, According to Jay Melosh, if an asteroid the size of (~400 m across) were to hit land, it would create a crater across, deep and generate a seven-magnitude-equivalent-earthquake. The chances of an actual collision with an asteroid like is about 1 percent in the next thousand years. == Study ==

captures flyby of asteroid . During the 2011 passage was studied with radar using Goldstone, Arecibo, the Very Long Baseline Array, and the Green Bank Telescope. On 11 November 2011, higher-resolution images showed concavities, a ridge near the asteroid's equator, and numerous features interpreted as decameter-scale boulders. spectroscopy confirmed that is a C-type asteroid. == Future trajectory ==

On 19 January 2029, will pass from Venus. The close approach distance to Venus in 2029 will determine how close the asteroid will pass to Earth in 2041. Before the November 2011 observations, the uncertainties in the post-2029 trajectory showed that the asteroid would pass somewhere between and of Earth in 2041. Radar astrometry in November 2011 clarified the Earth passage in 2041 and beyond. As a result of the November 2011 radar observations, it is now known that will pass between and 0.1020 AU of Earth on 12 November 2041. Using the current uncertainty region integrated until the future, the 2075 approach will be between and . == References ==