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2019 OK [a] is a near-Earth asteroid noted for its sudden, surprise discovery on the day before it flew by at approximately 70,000 km (43,000 mi) in 2019. [4] The object's size is estimated at 57 to 130 metres (187 to 426 ft) across, the closest asteroid of such size discovered in 2019. [5]
When it came within less than 240,000 km (150,000 miles) of Earth, which is closer than the orbit of the Moon, the object sparked concerns that it might collide with the planet.
Asteroid designation Date of impact Location of impact Method of detection Estimated size Reference 2008 TC 3: October 7, 2008: Nubian Desert in Sudan: visual, weather satellite, meteorite recovery: 4 m (13 ft) JPL · MPC · [1] 2014 AA: January 2, 2014: Central Atlantic Ocean: infrasound: 2–4 m (6.6–13.1 ft) JPL · MPC · [2] 2018 LA: June ...
It was the 32nd known asteroid to flyby Earth within 1 lunar distance since the start of 2018 and 16th closest, although it was the largest known asteroid to pass within half a lunar distance. After closest approach its apparent magnitude dropped from 12 to 35 in less than 12 hours, heading towards the Sun. Coming from the opposite direction ...
According to the latest calculations from NASA's Jet Propulsion Laboratory, there is a 1.6% chance the asteroid will strike Earth on December 22, 2032. The asteroid 2024 YR4 is now rated at Level ...
The European Space Agency in January placed the asteroid's odds of hitting Earth at roughly 1%, before NASA's Jet Propulsion Laboratory estimated the risk was more like 1.6% at the tail end of the ...
When NASA sent its DART spacecraft to slam into the asteroid Dimorphos in 2022, the U.S. space agency demonstrated that it was possible to change a celestial object's trajectory, if needed, to ...
(89959) 2002 NT 7 (provisional designation 2002 NT 7) is a near-Earth object with a diameter of 1.4 kilometers and potentially hazardous asteroid of the Apollo group. [2] [3] It has a well determined orbit with an observation arc of 64 years including precovery images by Palomar Observatory dating back to 1954.