New algorithm ensnares its first ‘potentially hazardous’ asteroid

July 31, 2023 | UW News | James Urton

An asteroid discovery algorithm — designed to uncover near-Earth asteroids for the
Vera C. Rubin Observatory’s upcoming 10-year survey of the night sky — has identified
its first “potentially hazardous” asteroid, a term for space rocks in Earth’s vicinity that
scientists like to keep an eye on.

The roughly 600-foot-long asteroid, designated 2022
SF289, was discovered during a test drive of the algorithm with the ATLAS survey in
Hawaii. Finding 2022 SF289, which poses no risk to Earth for the foreseeable future,
confirms that the next-generation algorithm, known as HelioLinc3D, can identify near-
Earth asteroids with fewer and more dispersed observations than required by today’s

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