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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 Rows highlighted yellow indicate objects discovered less than 24 hours before closest approach
2011 ES 4 (also written 2011 ES4) is an Apollo near-Earth asteroid roughly 22–49 meters (72–160 feet) in diameter. It was first observed on 2 March 2011 when the asteroid was about 0.054 AU (8,100,000 km; 5,000,000 mi) from Earth and had a solar elongation of 159 degrees. It passed closest approach to Earth on 13 March 2011. [3]
(458732) 2011 MD 5 is an Apollo near-Earth asteroid around 1.2 kilometers (0.75 miles) in diameter. It is the largest asteroid known to have passed closer than the Moon. [4] On 17 September 1918 the asteroid passed 0.00234 AU (350 thousand km; 0.91 LD) from Earth [3] with a peak apparent magnitude of around 8.4. The 1918 close approach distance ...
Earth has a new “mini-moon” after an asteroid has joined our orbit. The object, known as 2024 PT5, has been chasing after us for years. Now, it has become close enough to be pulled in by our ...
(415029) 2011 UL 21, provisional designation 2011 UL 21, is an Apollo class potentially hazardous asteroid discovered on October 17, 2011, by the Catalina Sky Survey project. [1] The asteroid is estimated to have a diameter of 2.5 kilometres (1.6 mi). It was rated at Torino Scale 1 on October 27, 2011, with an observation arc of 9.6 days. [4]
On 8 January, it came within 7.6 million miles of Earth, roughly 32 times the average distance between Earth and the Moon. The next time it will pass this close again will be in 2087.
An asteroid the size of a delivery truck will whip past Earth on Thursday night, one of the closest such encounters ever recorded. NASA insists it will be a near miss with no chance of the ...
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.