2015 XF261

is a Near-Earth Aten asteroid with an estimated diameter of between and, with next closest approach occurring on 5 March 2026 at 15:44 UTC and closest approach of the 21st century occurring on 11 April 2090 at a nominal distance of. It completes one orbit around the Sun every 360 days.

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.