Asteroid 2024 YR4 reaches level 3 on the Torino Scale

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By Center for NEO Studies (CNEOS), JPL/CalTech. 

Excerpt: CNEOS analysis of near-Earth asteroid 2024 YR4, which is estimated to be about 40 to 90 meters wide, indicates it has a more than 1% chance of impacting Earth on Dec. 22, 2032 — which also means there is almost a 99% chance this asteroid will not impact. These analyses will change from day to day as more observations are gathered. The CNEOS analyses are used for NASA’s contribution to the International Asteroid Warning Network (IAWN). After the impact probability for this asteroid reached 1%, IAWN issued its official notification for the potential impact.... 


See also: International Asteroid Warning Network - https://iawn.net/obscamp/2024YR4/index.shtml, explanation of the Torino Scale on Wikipedia - https://en.wikipedia.org/wiki/Torino_scale,
European Space Agency Near-Earth Objects Coordination Center - https://neo.ssa.esa.int/-/latest-cafs, https://neo.ssa.esa.int/documents/d/guest/close-approach-fact-sheet-for-asteroid-2024yr4-version-1-0-,
and Planetary Defense at NASA - https://science.nasa.gov/planetary-defense/.

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