2018 WV1
2018 WV1 is a very small asteroid and near-Earth object of the Apollo group that passed within 27,000 kilometers (17,000 miles) of the Earth's surface on 2 December 2018. It was first observed on 29 November 2018 by Hannes Gröller with the Catalina Sky Survey at Catalina Station on Mount Bigelow, Arizona, in the United States.
2018 WV1's flyby trajectory | |
| Discovery | |
|---|---|
| Discovered by | CSS H. Groeller |
| Discovery site | Catalina Station |
| Discovery date | 29 November 2018 (first observed only) |
| Designations | |
MPC designation | 2018 WV1 |
Alternative designations | ZW0C3A5 |
Minor planet category | NEO · Apollo Earth crosser |
| Orbital characteristics | |
| Epoch 6 December 2018 (JD 2458458.5) | |
| Uncertainty parameter 2 | |
| Observation arc | 14 days |
| Aphelion | 1.1149 AU |
| Perihelion | 0.9715 AU |
Semi-major axis | 1.0432 AU |
| Eccentricity | 0.0686 |
Orbital period (sidereal) | 1.065 yr (389 d) |
Mean anomaly | 38.51° |
Mean motion | 0° 55m 30s / day |
| Inclination | 1.9054° |
Longitude of ascending node | 248.51° |
| 141.37° | |
| Earth MOID | 0.1444 LD (55500 km) |
| Physical characteristics | |
Mean diameter | 4 m (assumed) |
| 30.145 30.183 30.2 | |
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