Earth

=== Asteroids and artificial satellites ===
{{Main|Near-Earth object|Claimed moons of Earth}}
[[File:Debris-GEO1280.jpg|thumb|A computer-generated image mapping the prevalence of [[artificial satellite]]s and [[space debris]] around Earth in [[geosynchronous orbit|geosynchronous]] and [[low Earth orbit]]]]
Earth's [[Co-orbital configuration|co-orbital asteroids]] population consists of [[quasi-satellite]]s, objects with a [[horseshoe orbit]] and [[Trojan (celestial body)|trojans]]. There are at least five quasi-satellites, including [[469219 Kamoʻoalewa]].<ref name="christou_asher2011" /><ref>{{cite journal|url=https://academic.oup.com/mnras/article/462/4/3441/2589984|title=Asteroid (469219) 2016 HO3, the smallest and closest Earth quasi-satellite|journal=Monthly Notices of the Royal Astronomical Society|last1=Marcos|first1=C. de la Fuente|last2=Marcos|first2=R. de la Fuente|date=8 August 2016|doi=10.1093/mnras/stw1972|pages=3441–3456|volume=462|issue=4|arxiv=1608.01518|bibcode=2016MNRAS.462.3441D|s2cid=118580771|access-date=28 October 2020}}</ref> A [[Earth trojan|trojan asteroid]] companion, {{mpl|2010 TK|7}}, is [[Libration|librating]] around the leading [[Lagrangian point|Lagrange triangular point]], L4, in [[Earth's orbit]] around the Sun.<ref name="Choi" /> The tiny [[near-Earth asteroid]] {{mpl|2006 RH|120}} makes close approaches to the Earth–Moon system roughly every twenty years. During these approaches, it can orbit Earth for brief periods of time.<ref>{{cite web |title=2006 RH120 ( = 6R10DB9) (A second moon for the Earth?) |url=http://www.birtwhistle.org/Gallery6R10DB9.htm |website=Great Shefford Observatory|access-date=17 July 2015 |archive-url=https://web.archive.org/web/20150206154817/http://www.birtwhistle.org/Gallery6R10DB9.htm |archive-date=6 February 2015}}</ref>

{{As of|2021|9}}, there are 4,550 operational, human-made [[satellite]]s orbiting Earth.<ref name="ucs" /> There are also inoperative satellites, including [[Vanguard 1]], the oldest satellite currently in orbit, and over 16,000 pieces of tracked [[space debris]].<ref group="n" name="space_debris" /> Earth's largest artificial satellite is the [[International Space Station]].<ref>{{Cite book|last1=Welch|first1=Rosanne|url={{GBurl|id=aWGHDwAAQBAJ|q=largest artificial satellite|pg=RA2-PA126}}|title=Technical Innovation in American History: An Encyclopedia of Science and Technology [3 volumes]|last2=Lamphier|first2=Peg A.|year=2019|publisher=ABC-CLIO|isbn=978-1-61069-094-2|page=126|language=en}}</ref>