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Category::angle    Earth::degree    Sentry::table    Removed::small    Title::apollo    Harvard::adsabs

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(164207) 2004 GU9 is a small near-Earth asteroid in the Apollo asteroid family. It will be a quasi-satellite of Earth until around 2600.<ref name=wajer>Dynamical evolution of Earth’s quasi-satellites: 2004 GU9 and 2006 FV35</ref>

On 14 April 2004 (with less than a 1-day observation arc), the Sentry Risk Table showed 180 virtual impactors.<ref name="hohmanntransfer">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> It was removed from the Sentry Risk Table 2 days later on 16 April 2004.<ref name="removed">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> (164207) 2004 GU9 now has a well determined orbit with an observation arc of 12 years.


(164207) 2004 GU9 sections
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