2018 BF3

2018 BF₃
	Orbit and 1 Feb 2018 positions after flyby
Discovery
Discovered by	CSS
Discovery site	Mount Lemmon Obs.
Discovery date	20 January 2018
Designations
MPC designation	2018 BF3
Minor planet category	NEO · Apollo
Orbital characteristics
	Epoch 23 March 2018 (JD 2458200.5)
	Uncertainty parameter 7
Observation arc	3 days
Aphelion	2.2905 AU
Perihelion	0.8127 AU
Semi-major axis	1.5516 AU
Eccentricity	0.4762
Orbital period (sidereal)	1.93 yr (706 days)
Mean anomaly	54.414°
Mean motion	0° 30m 36s / day
Inclination	11.691°
Longitude of ascending node	298.99°
Argument of perihelion	117.22°
Earth MOID	3.87715×10−5 AU (0.15 LD)
Physical characteristics
Mean diameter	12–38 m; 18–40 m
Absolute magnitude (H)	25.908

2018 BF₃ is a micro-asteroid, classified as a near-Earth object of the Apollo group, approximately 20 meters (70 ft) in diameter. It was first observed on 20 January 2018, by astronomers of the Catalina Sky Survey at Mount Lemmon Observatory in Arizona, United States,^[1] the day after the closest flyby, due to its approach from the direction of the Sun.

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