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The original mandate to NASA given by the United States Congress in 1998 was to detect 90% of near-Earth asteroids over 1 km (0.62 mi) diameter (that threaten global devastation) by 2008. [20] NASA's PDCO considers objects with a diameter of at least 1 km (0.62 mi) capable of creating an impact crater at least 10 km (6.2 mi) across and causing ...
Below is an example list of near-Earth asteroids that nominally will pass more than 1 lunar distance (384,400 km or 0.00256 AU) from Earth in 2023. During 2022, over 1,000 asteroids passed within 10 LD (3.8 million km) of Earth. Rows highlighted grey indicate a planet or main-belt asteroid
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 location of 2024 YR4 qualifies it not just as any asteroid, but a near-Earth object (NEO). NEOs are defined as asteroids that hug the inner solar system, where we live, coming within 1.3 ...
These are asteroids in a near-Earth orbit without the tail or coma of a comet. As of December 2024, 37,255 near-Earth asteroids (NEAs) are known, 2,465 of which are both sufficiently large and may come sufficiently close to Earth to be classified as potentially hazardous. [1] NEAs survive in their orbits for just a few million years. [27]
Smaller objects shoot past Earth all the time, according to asteroid expert Davide Farnocchia with NASA’s Center for Near-Earth Object Studies. Asteroids the size of this latest one fly by about ...
The odds of asteroid 2024 YR4 hitting Earth has jumped from more than 1% to 3% and back down to 1.5%. ... a navigation engineer at NASA's Jet Propulsion Laboratory and the Center for Near Earth ...
A list of the 145 known near-Earth asteroid close approaches less than 1 lunar distance (0.0025696 AU (384,410 km; 238,860 mi)) from Earth in 2024, based on the close approach database of the Center for Near-Earth Object Studies (CNEOS). [1] For reference, the radius of Earth is about 0.0000426 AU (0.0166 LD; 6,370 km; 3,960 mi).