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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
It had a close encounter with Earth on 28 January 2011 at 0.0953 AU (14,260,000 km; 8,860,000 mi), [3] and it will have a nominal Earth approach on 23 September 2025 at about 0.06 AU (9,000,000 km; 5,600,000 mi). [3] Asteroid 2011 EO 40 experiences close approaches to the Earth–Moon system following a rather regular pattern, every 17 years ...
(367789) 2011 AG 5, provisional designation 2011 AG 5, is a sub-kilometer asteroid, classified as near-Earth object and potentially hazardous asteroid of the Apollo group. [1] It has a diameter of about 140 meters (460 ft). [4] It was removed from the Sentry Risk Table on 21 December 2012 and as such it now has a rating of 0 on the Torino Scale ...
Scientists at NASA collected radar images as two asteroids made recent close passes of Earth, and the data revealed that one of the space rocks has a tiny moon.
(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]
A menacing asteroid named Apophis is projected to have a close encounter with Earth in 2029, but scientists have long ruled it out as an impact risk. Asteroids safely fly by Earth all the time ...
(436724) 2011 UW 158, provisionally known as 2011 UW 158, is a stony, walnut-shaped asteroid and fast rotator, classified as near-Earth object and potentially hazardous asteroid of the Apollo group, approximately 300 meters in diameter.
With minerals in short supply on Earth, private companies such as California-based AstroForge and international space agencies are turning to the prospect of asteroids in space.