page_title: (163899) 2003 SD220
section_title: Earth flybys 2015–2027
hierarchical_section_title: (163899) 2003 SD220 / Earth flybys 2015–2027
caption_attribution_description: English: en:(163899) 2003 SD220 distances from earth at closest approaches from 2009 to 2027. Data from JPL Horizons Ephemeris
context_page_description: (163899) 2003 SD₂₂₀ is a sub-kilometer asteroid and tumbling slow rotator, classified as near-Earth object and potentially hazardous asteroid of the Aten group, which orbit the Sun between Venus and Earth. Its orbital period of 0.75 years means that it orbits the sun about 4 times for every 3 of the Earth. It was discovered on 29 September 2003, by astronomers of the Lowell Observatory Near-Earth-Object Search at Anderson Mesa Station near Flagstaff, Arizona.
context_section_description: It passed about 28 lunar distances (LD) from the Earth on 25 December 2015. It came within about 7 LD (0.0189 AU) on 22 December 2018. Its peak brightness was about 13.13 magnitude on 16 December 2018.
  Observations are planned for favorable flybys in 2021, 2024, and 2027. It will pass with 14 LD (0.0363 AU) on 17 December 2021, and 34 LD (0.0884 AU) on 2 December 2024, and 54 LD (0.1382 AU) on 12 November 2027.
  Patrick Taylor of Arecibo Observatory suggested it could be a target for a future robotic mission.
caption: Minimum distances from 2009 to 2027
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