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2012 YQ1
2012 YQ1 is an Apollo asteroid discovered on 19 December 2012 by astronomers Andrey Oreshko and Timur Kryachko using an ''"Elena"'' Telescope located in the Chilean Atacama desert.〔 With a 4-day observation arc, the asteroid had a 1 in 3 million chance of impacting in 2106.〔 With a 10-day observation arc, the asteroid had a 1 in 10 million chance of impacting in 2106.〔 On 5 January 2013, the asteroid passed from Earth.〔 It was removed from the Sentry Risk Table on 8 January 2013.〔 It has an observation arc of 32 days and an orbital uncertainty of 7.〔 Since the asteroid has a poorly known orbit, the cone of uncertainty quickly multiplies as a result of perturbations by the inner planets and prevents precise/reliable ephemeris data. Eliminating an entry on the Sentry Risk Table is a negative prediction; a prediction of where it will NOT be.
==In the popular press==
In 2013, an article, originally posted on The Voice of Russia had a poorly researched headline stating "We have 93 years left till the next End of the World". This story was reposted on Space Daily, but then astronomer Phil Plait clarified that it was "a fascinating mix of fact and error. A lot of what it says is accurate, but the most important claim—that an asteroid will impact Earth in 2106—is simply wrong."
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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