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The October 2012 observations reduced the orbit uncertainties by more than a factor of 60, meaning that the Earth's position in February 2040 no longer falls within the range of possible future paths for the asteroid. [8] On 4 February 2040 the asteroid will pass no closer than 0.007 AU (1,000,000 km; 650,000 mi) (~2.8 LD) from Earth. [1]
[4] [5] In November 2011 with an observation arc of 40 days, the JPL Small-Body Database showed that the uncertainty region of the asteroid during the 1976 close approach could result in a pass anywhere from 0.001 AU to 0.018 AU from Earth. [4] During the 1976 close approach the asteroid reached about apparent magnitude 14. [6]
A list of known near-Earth asteroid close approaches less than 1 lunar distance (384,400 km or 0.00257 AU) from Earth in 2011. [note 1] Rows highlighted red indicate objects which were not discovered until after closest approach
On Thursday, meanwhile, asteroid 2011… Near miss, in this case, is a relative term: Saturday’s asteroid, 2024 MK, will come within 180,000 miles of Earth. Stadium-sized asteroid to buzz by ...
A fireball traveling at 42,000 miles per hour streaked across the night sky above Vermont on Sunday night, creating a spectacular light show. The meteor "fragmented so violently," it shook ...
For comparison, the average distance between the Earth and the moon is about 385,000km (239,000 miles). So far, about 25,000 large asteroids have been discovered as potential “city killers”.
Goldstone radar images of asteroid 99942 Apophis on 8–10 March 2021 Goldstone radar images of asteroid 2001 FO 32 during closest approach on 21 March 2021 Below is an example list of near-Earth asteroids that passed or will pass more than 1 lunar distance (384,400 km or 0.00256 AU) from Earth in 2021.
2011 MD was observed by the Spitzer Space Telescope in February 2014 and estimated to be 6 meters (20 ft) in diameter. [4] The asteroid is a porous rubble pile with a density similar to water. [4] On 19 June 2014, NASA reported that asteroid 2011 MD was a prime candidate for capture by the Asteroid Redirect Mission (ARM) in the early 2020s. [10]