is an Aten-type near-Earth asteroid with an estimated diameter of around . It completes one orbit around the Sun every 359.7 days, placing it near the 1:1 mean-motion resonance with Earth. It is the target asteroid for a planned asteroid redirect mission by the China National Space Administration (CNSA).
Orbit is a near-Earth asteroid following an elliptical orbit around the Sun, with a semi-major axis of 0.99 astronomical units (AU), an orbital period of about 359.7 days, and an orbital inclination of 0.79°. Due to an orbital eccentricity of 0.32, its distance from the Sun varies from 0.67 AU at perihelion to 1.31 AU at aphelion. Since it is an Earth-crossing asteroid with a semi-major axis under 1 AU, it is classified as an Aten asteroid. Its orbital period nearly matches with Earth's, placing it in a near-1:1 mean-motion resonance with Earth.
2029 mission is the target for an asteroid-deflecting mission planned by China in 2029, launching in 2027, two years after its previous launch target of 2025. Its original target was . The spacecraft is planned to be launched on a Long March 3B in 2027, making a flyby of Venus before arriving at the asteroid in early 2029, and colliding with the asteroid in April 2029 at an estimated speed of .
See also Double Asteroid Redirection Test (DART), another asteroid-deflecting mission which collided with Dimorphos
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