410661

410661 is a numbered minor planet in the catalog of the International Astronomical Union. It was discovered on 14 September 2015 by the Pan‑Survey telescope at the Haleakala Observatory in Hawaii. The object's provisional designation was 2015 RY_{12}. Follow‑up astrometry gave a well‑determined orbit that places it in the outer part of the main asteroid belt, between the orbits of Mars and Jupiter. Its semi‑major axis is approximately 2.8 astronomical units, with an eccentricity of about 0.14 and an inclination of roughly 6.7 degrees relative to the ecliptic plane. The perturbations from the Jovian planets keep its orbit stable over the Solar System's lifespan.

The asteroid has an inferred diameter of around 2.1 km, based on its absolute magnitude of 14.3 and an assumed albedo typical of S‑type (stony) bodies. Spectroscopic observations classify 410661 as an ordinary chondrite analogue, suggesting a composition dominated by silicate minerals and metallic iron. Photometric light‑curve data from the Lowell Observatory give a rotational period of approximately 5.8 hours and a brightness amplitude indicating an elongated shape.

410661 has not yet been visited by a spacecraft, and no close‑approach or potential impact threat to Earth has been identified. Its status remains that of a typical main‑belt asteroid, studied primarily through optical telescope observations.