2018 CF2

2018 CF₂
	The orbit before and after its 2018-flyby
Discovery
Discovered by	MLS
Discovery site	Mount Lemmon Obs.
Discovery date	7 February 2018
Designations
MPC designation	2018 CF2
Minor planet category	NEO · Apollo
Orbital characteristics
	Epoch 23 March 2018 (JD 2458200.5)
	Uncertainty parameter 7
Observation arc	2 days
Aphelion	2.7662 AU
Perihelion	0.9089 AU
Semi-major axis	1.8375 AU
Eccentricity	0.5054
Orbital period (sidereal)	2.49 yr (910 days)
Mean anomaly	29.432°
Mean motion	0° 23m 44.52s / day
Inclination	16.284°
Longitude of ascending node	137.68°
Argument of perihelion	320.19°
Earth MOID	0.00077 AU (0.30 LD)
Physical characteristics
Mean diameter	4–15 m; 7 m (est. at 0.20); 14 m (est. at 0.057)
Absolute magnitude (H)	28.036

2018 CF₂ is a micro-asteroid and near-Earth object of the Apollo group on an eccentric orbit with has an estimated 4–15 meters (10–50 ft). It was first observed on 7 February 2018, by astronomers of the Mount Lemmon Survey at Mount Lemmon Observatory, Arizona, United States.^[1] The discovery occurred the day after its sub-lunar passage as it approached the Earth from a sunward direction, and this flyby altered the asteroid's orbit slightly.

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