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F r o m W i k i p e d i a , t h e f r e e e n c y c l o p e d i a
(620094) 2016 AJ193 provisional designation 2016 AJ193 2010 KV134 near-Earth object and potentially hazardous asteroid of the Apollo group , approximately 1.4 kilometres (0.87 mi ) in diameter. It was discovered on 17 May 2010 by the Wide-field Infrared Survey Explorer (WISE) satellite, but was lost until it was reobserved on 16 January 2016.[5] [2] observation arc over 11 years, 2016 AJ193 has a well-determined orbit and trajectory through the year 2086.[3] [6] [7]
On 21 August 2021, the asteroid safely made a close approach to Earth from a distance of 0.0229 AU (3.43 million km; 2.13 million mi ), or 8.92 lunar distances (LD ). During closest approach, 2016 AJ193 reached a peak apparent magnitude of 14, visible to ground-based observers with telescope apertures of at least 20 cm (8 in ).[4] [6] mi ) of Earth in 2021.[8]
The asteroid received the permanent minor planet number 620094 by the Minor Planet Center on 7 April 2023.[9]
2016 AJ193 's rotation shown in radar images taken by Goldstone on 22 August 2021
References
[ edit ]
^ a b c d e f "JPL Small-Body Database Browser: (2016 AJ193)" (2021-08-21 last obs.). Jet Propulsion Laboratory . Retrieved 3 September 2021 .
^ a b Benner, Lance A. M. "Goldstone Radar Observations Planning: 2016 AJ193 and 2011 UC292" . Jet Propulsion Laboratory . California Institute of Technology. Retrieved 3 September 2021 .
^ "MPEC 2016-B28 : 2016 AJ193" . Minor Planet Electronic Circular . Minor Planet Center . 18 January 2016. Retrieved 3 September 2021 .
^ a b Irizarry, Ezzie (20 August 2021). "Heads Up! Close Asteroid Pass August 21" . EarthSky . Retrieved 3 September 2021 .
^ O'Neill, Ian J.; Fox, Karen; Handal, Joshua (3 September 2021). "Planetary Radar Observes 1,000th Near-Earth Asteroid Since 1968" . Jet Propulsion Laboratory . NASA. Retrieved 3 September 2021 .
^ "NEO Earth Close Approaches" . Center for Near Earth Object Studies . Jet Propulsion Laboratory. Retrieved 3 March 2021 .
^ "M.P.C. 163231" (PDF) . Minor Planet Circular (163231). Minor Planet Center: 1211. 7 April 2023. Retrieved 21 April 2023 .
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