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A list of known near-Earth asteroid close approaches less than 1 lunar distance (384,400 km or 0.00257 AU) from Earth in 2012, based on the close approach database of the Center for Near-Earth Object Studies (CNEOS). [1]
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 .
An asteroid for which there is some possibility of a collision with Earth at a future date and which is above a certain size is classified as a potentially hazardous asteroid (PHA). Specifically, an asteroid is a PHA if its Earth minimum orbital intersection distance (MOID) is <0.05 AU and its absolute magnitude is 22 or brighter. [2]
The asteroid, described as "very small" by NASA, impacted Earth's atmosphere around 11:14 a.m. ET and created a fireball over eastern Russia, the space agency said in a post on X.
A 10 indicates that a collision is certain, and the impacting object is large enough to precipitate a global disaster. An object is assigned a 0 to 10 value based on its collision probability and the kinetic energy of the possible collision. The Torino scale is defined only for potential impacts less than 100 years in the future.
2012 BX 34 is a small Aten asteroid that made one of the closest recorded asteroid close approaches of Earth on 27 January 2012. It passed within 0.0004371 AU (65,390 km ; 40,630 mi ) of Earth during its closest approach at 15:25 GMT.
The small asteroid, measuring about a metre across, did not pose a threat to life. It was the third space rock detected imminently before impacting the Earth this year, but only the tenth on record.
The Caribbean Astronomy Society (SAC) said the "impressive" asteroid was visible across the entire Caribbean region at 7:05 p.m. local time Saturday. After hitting Earth's atmosphere, the space ...