Discovery[1] | |
---|---|
Discovered by | CSS |
Discovery site | Mount Lemmon Obs. |
Discovery date | 18 January 2018 (first observed only) |
Designations | |
2018 BD | |
NEO · Apollo[1][2] | |
Orbital characteristics[2] | |
Epoch 23 March 2018 (JD 2458200.5) | |
Uncertainty parameter 7 | |
Observation arc | 1 day |
Aphelion | 1.3555 AU |
Perihelion | 0.7508 AU |
1.0531 AU | |
Eccentricity | 0.2871 |
1.08 yr (395 days) | |
357.05° | |
0° 54m 43.2s / day | |
Inclination | 2.4082° |
298.10° | |
273.70° | |
Earth MOID | 6.019×10−6 AU (0.00234 LD) |
Physical characteristics | |
2 m (est. at 0.35)[3] 6 m (est. at 0.05)[3] | |
30.154[2] | |
2018 BD is a small asteroid and near-Earth object of the Apollo group, approximately 2–6 meters (7–20 ft) in diameter. It was first observed on 18 January 2018, by astronomers of the Catalina Sky Survey at Mount Lemmon Observatory, Arizona, United States,[1] just hours before passing about 0.10 lunar distances from the Earth.[2]