https://phys.org/news/2018-07-twenty-years-planetary-defense.html

Most media outlets did not know what to make of the announcement, and mistakenly highlighted the prospect that Earth was doomed.

Fortunately, it turned out that Earth was never in danger from 1997 XF11. After performing a more thorough orbit analysis with the available asteroid observations, Don Yeomans, then the leader of the Solar System Dynamics group at NASA's Jet Propulsion Laboratory in Pasadena, California, along with his colleague Paul Chodas, concluded otherwise. "The 2028 impact was essentially impossible," said Chodas, who is now director of NASA's Center for Near-Earth Object Studies (CNEOS), located at JPL.