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2024 YR 4 is an asteroid with an estimated diameter of 40 to 90 metres (130 to 300 ft) that is classified as an Apollo-type (Earth-crossing) near-Earth object.From 27 January to 20 February 2025, it had an impact rating of 3 on the Torino scale, with a maximum estimated probability of 3.1% that it would impact Earth on 22 December 2032.
The largest asteroid to pass within 1 LD of Earth in 2020 was 2020 LD with an estimated diameter of around 145 meters and an absolute magnitude of 22.4. The fastest asteroid to pass within 1 LD of Earth in 2020 was 2020 FD 2 that passed Earth with a velocity with respect to Earth of 33.4 km/s (75,000 mph). [3] [note 2]
Asteroid designation Date & time (UTC) of discovery Discoverer Estimated size Abs. mag. Date & time (UTC) of impact Warning time Location of impact Airburst altitude Energy Method of impact detection Reference 2008 TC 3: 2008-10-06 06:39 Mt. Lemmon Survey: 3.8–4.4 m (12–14 ft) 30.72: 2008-10-07 02:45 20:05: 20.9 N, 31.8 E Nubian Desert in ...
The asteroid YR4's chances of impact now surpass the odds that Apophis once had of colliding with Earth when it was first discovered in 2004. Fortunately, the 130 to 300-foot asteroid is much ...
An asteroid called 2020 CD3 was bound to Earth for several years before leaving the planet's orbit in 2020 and another called 2022 NX1 became a mini-moon of Earth in 1981 and 2022 and will return ...
Near-Earth asteroid Bennu has a slim chance of colliding with Earth in 2182. If it does, the impact could trigger a global winter that affects our planet for years.
Asteroid impact prediction is the prediction of the dates and times of asteroids impacting Earth, along with the locations and severities of the impacts. The process of impact prediction follows three major steps: Discovery of an asteroid and initial assessment of its orbit which is generally based on a short observation arc of less than 2 weeks.
If an asteroid at the bottom of this size range, one 7 metres (23 ft) across (with an absolute magnitude ggrater than 28.5), has average asteroid density and impacts the Earth at average meteor speed, its impact energy is about 15 kilotons TNT equivalent, or roughly equivalent to the blast energy of the Hiroshima bomb. [11]