2019 BO

2019 BO is a tiny near-Earth asteroid of the Apollo group. It was first observed by the Catalina Sky Survey at the Mount Lemmon Observatory on 7 January 2019. It passed within 0.18 lunar distances, or 69,192 kilometres (42,994 mi) from Earth.

2019 BO

Discovery[1]
Discovered by	CSS
Discovery site	Mt. Lemmon Obs.
Discovery date	7 January 2019
Designations
MPC designation	2019 BO
Minor planet category	NEO · Apollo[2][1]
Orbital characteristics[2][1]
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 5
Observation arc	19 days
Aphelion	2.325 AU
Perihelion	0.9457236 AU
Semi-major axis	1.6356032 AU
Eccentricity	0.4217891
Orbital period (sidereal)	2.09 yr (764.2 d)
Mean anomaly	58.82453°
Mean motion	0° 28m 16.248s / day
Inclination	2.78881°
Longitude of ascending node	295.63980°
Argument of perihelion	149.97352°
Earth MOID	0.00057 AU
Physical characteristics
Mean diameter	5–18 m (16–59 ft)
Absolute magnitude (H)	28.1[2]

See also

• List of asteroid close approaches to Earth in 2019