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 2020. This is a list of examples where an asteroid or meteoroid travels close to the Earth. See the. the asteroid is unconfirmed and will likely never receive a provisional designation. Objects with distances greater than 100 km (62 mi) are listed here, although there is no discrete beginning of space. Rows highlighted blue indicate objects discovered more than one year before closest approach, i.e. With an arc of 1.5 hours and 6 observations, there is a roughly 40% chance it passed further than 0.1 LD, with a maximum distance of 0.13 LD. 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 2020. List of asteroid close approaches to Earth, List of asteroid close approaches to Earth in 2019, List of asteroid close approaches to Earth in 2021, "New Data Confirm 2020 SO to be the Upper Centaur Rocket Booster from the 1960's", "JPL Small-Body Database Search Engine: unnumbered objects and PHAs", https://en.wikipedia.org/w/index.php?title=List_of_asteroid_close_approaches_to_Earth_in_2020&oldid=1016417557, Creative Commons Attribution-ShareAlike License, Time of discovery of asteroids which came closer to Earth than the Moon in 2020, This page was last edited on 7 April 2021, at 01:56. Two objects have been observed to be temporary satellites of Earth: 2020 CD3 in February 2020 and 2020 SO in September 2020, albeit the latter has been confirmed to be a rocket booster from the Surveyor 2 mission launched in 1966. Diameter Diameter value when known or a range (min - max) estimated using the asteroid's absolute magnitude (H) and limiting albedos of 0.25 and 0.05. au Scientists estimate that several dozen asteroids in the 6–12 m (20–39 ft) size range fly by Earth at a distance closer than the moon every year, but only a fraction of these are actually detected. [note 1]. Designated 2020 QG, it is the closest known asteroid to fly by Earth without impacting the planet. More than one asteroid per year may be listed if its geocentric distance[note 2] is within a tenth of the lunar distance, or 0.10 LD. There was a roughly 2% chance of impact. They approach Earth's orbit to within 7.5 million kilometers (about 4.6 million miles). The year 2011 was notable as two asteroids with size 100 m (330 ft) or more approached within one lunar distance. The uncertainty region is still somewhat large due to a short observation arc. [4], .mw-parser-output .legend{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .legend-color{display:inline-block;min-width:1.25em;height:1.25em;line-height:1.25;margin:1px 0;text-align:center;border:1px solid black;background-color:transparent;color:black}.mw-parser-output .legend-text{}  Rows highlighted red indicate objects which were not discovered until after closest approach, Rows highlighted yellow indicate objects discovered less than 24 hours before closest approach, Rows left white indicate objects discovered 1–7 days before closest approach, Rows highlighted green indicate objects discovered more than one week before closest approach. As sky surveys improve, smaller and smaller asteroids are regularly being discovered. At its closest point, 2021 GW4 passed by us at just 7 percent of the distance between the Earth and the Moon. Biggest asteroid to pass by Earth this year comes closest The largest asteroid to visit Earth in 2021 is passing by our planet on Sunday at a speed of about 124,000 kph. The 3,000-foot-wide asteroid, the largest expected to come this close to Earth in 2021, will pass safely at an estimated 1.25 million miles away. A number of known asteroids came closer than this in 2020, notably 2020 CW, 2020 JJ, 2020 QG, and 2020 VT4 which all approached Earth within 0.05 lunar distances. ( Radar image taken by GDSCC in 1996.) 4197 Morpheus 2021 will see its largest asteroid approach Earth on March 21 at closest point Scientists say there is no threat of a collision with our planet, now, or for centuries in the future. The largest known Near-Earth asteroid is 1036 Ganymed with a diameter of nearly 41 kilometers (25.5 miles). Apollo asteroid, Venus-crosser asteroid, Mars-crosser asteroid: Near-Earth asteroids in Main Asteroid Belt: 2201 Oljato: 2.172: Apollo asteroid, Venus-crosser asteroid, Mars-crosser asteroid: 4486 Mithra: 2.204: Apollo asteroid, Mars-crosser asteroid: 2001 WN 15: 2.275: Apollo asteroid, Mercury-crosser asteroid, Venus-crosser asteroid, Mars-crosser asteroid. The small near-Earth asteroids 2008 TC3, 2014 AA, 2018 LA and 2019 MO are the only four asteroids discovered before impacting into Earth (see asteroid impact prediction). Last week, the Earth had its closest shave with an asteroid ever recorded, when a small space rock skimmed just 370 km (230 miles) above the … Radar animation of asteroid 1998 OR 2, which came within 16 lunar distances in April … Undefined for comets. The car-sized asteroid 2020 QG made the closest Earth flyby ever recorded on Aug. 16, 2020. Of the objects so detected, 78 had an impact energy greater than that of a 1-kiloton device (equivalent to 1000 tons of TNT), including 11 which had an impact energy greater than that of a 10-kiloton device i.e.
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