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A list of known near-Earth asteroid close approaches less than 1 lunar distance (0.0025696 AU (384,410 km; 238,860 mi)) from Earth in 2023. [1] As most asteroids passing within a lunar distance are less than 40 meters in diameter, they generally are not detected until they are within several million km of Earth.
This is a list of asteroids that have impacted Earth after discovery and orbit calculation that predicted the impact in advance. As of December 2024 [update] , all of the asteroids with predicted impacts were under 5 m (16 ft) in size that were discovered just hours before impact, and burned up in the atmosphere as meteors .
2023 CX 1 is the seventh asteroid discovered before being successfully predicted to impact Earth, and also the third whose meteorites were collected after its predicted impact. [ 6 ] [ 17 ] It is Sárneczky's second discovery of an impacting asteroid, after 2022 EB 5 which he discovered a year prior in March 2022.
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.
2023 DW is a near-Earth asteroid of the Aten group.It is approximately 50 meters (160 feet) in diameter, roughly the size of the asteroid that caused the Tunguska event, [a] and was discovered by Georges Attard and Alain Maury, from the MAP (Maury/Attard/Parrott) asteroid search program in San Pedro de Atacama on 26 February 2023, when it was 0.07 AU (10 million km) from Earth. [1]
A 2 x 2 cm divot in the walkway formed by the impact of a meteor outside of a home in Canada. / Credit: University of Alberta ... In May 2023, another homeowner reported a meteorite crashed ...
Satellites in geostationary orbit. From the list in the first section, these are the closest known asteroids per year that approach Earth within one lunar distance.More than one asteroid per year may be listed if its geocentric distance [note 1] is within a tenth of the lunar distance, or 0.10 LD.
"Meteorite impacts generate high temperatures ranging from 2,000-6,000 degrees Celsius (3,600-10,800 degrees Fahrenheit). These extreme temperatures melt and vaporize rocks on the lunar surface ...