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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 2011. [note 1] Rows highlighted red indicate objects which were not discovered until after closest approach
In April 2021, CAMS published work that identified 14, and perhaps as many as 20, already known long-period comets as parent bodies of one of our meteor showers. Meteor showers were found for nearly all known comets approaching Earth orbit to 0.01 AU that have orbital periods in the 250 to 4,000 year range.
Trajectory of 2004 FH in the Earth–Moon system Goldstone radar images of asteroid 2007 PA 8 's Earth flyby in 2012. This is a list of examples where an asteroid or meteoroid travels close to the Earth. Some are regarded as potentially hazardous objects if they are estimated to be large enough to cause regional devastation.
2011 MD is a bright micro-asteroid, classified as near-Earth object of the Apollo and Amor group, respectively. [ 1 ] [ 3 ] On 27 June 2011, at around 17:00 UTC (13:00 EDT), the object passed exceptionally close to Earth's surface at a distance of approximately 12,000 kilometers (7,500 mi), roughly the diameter of the Earth.
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.
2018 RC, near earth asteroid on 2018-09-03 (notable because it was discovered more than a day prior to closest approach on 2018-09-09). [43] A10bMLz, unknown space debris, so-called "empty trash bag object" on 2019-01-25. [44] 2019 MO, an approximately 4 m asteroid which impacted the Caribbean Sea South of Puerto Rico in June 2019 [45]
Set to pass between the star and Earth is Leona, a slightly oval-shaped asteroid located between the orbits of Mars and Jupiter. Leona is estimated to be about 50 miles (80 kilometers) by 34 miles ...
The minimum orbit intersection distance (MOID) between an asteroid and the Earth is the distance between the closest points of their orbits. This first check is a coarse measure that does not allow an impact prediction to be made, but is based solely on the orbit parameters and gives an initial measure of how close to Earth the asteroid could ...