(456938) 2007 YV56
, provisional designation, is a sub-kilometer asteroid on an eccentric orbit, classified as a near-Earth object and potentially hazardous asteroid of the Apollo group, approximately in diameter. It was discovered on 31 December 2007, by astronomers of the Catalina Sky Survey conducted at the Catalina Station in Arizona, United States.
Orbit and classification
is an Apollo asteroid that crosses the orbit of Earth. Apollo's are the largest group of near-Earth objects with nearly 10 thousand known members.It orbits the Sun at a distance of 0.60–2.55 AU once every 2 years. Its orbit has a high eccentricity of 0.62 and an inclination of 6° with respect to the ecliptic. This makes it also a Mars-crossing asteroid, as it crosses the orbit of the Red Planet at 1.66 AU, as well as a Venus-crosser due to its aphelion of less than 0.71 AU. The body's observation arc begins at Catalina with its official discovery observation in December 2007.
Close approaches
has a minimum orbital intersection distance with Earth of, which corresponds to 1.83 lunar distances. It has an absolute magnitude of 21.0. This makes it a potentially hazardous asteroid, which are defined as having a MOID of less than and an absolute magnitude brighter than 22. Besides Earth, it also makes close approaches to Venus, Mars and the Moon.On 26 December 2007, five days prior to its discovery observation, it passed Earth at a nominal distance of. On 2 January 2101, it is predicted to flyby Earth at and pass the Moon at a similar distance five hours earlier as well .