Author(s): John van Vliet
2022 SF₂₈₉ is a 183-m potentially hazardous asteroid of the Apollo group. Its last close encounter with Earth was on 2022-Sept-7 at a distance of 7.2 million km and was spotted a year later during a successful test of the HelioLinc3D, an algorithm designed to be used by the future Vera C. Rubin Observatory as early as 2025
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