| Discovery[1] | |
|---|---|
| Discovered by | EURONEAR (unofficial credits) |
| Discovery site | La Palma Obs. (first observed) |
| Discovery date | 29 July 2014 |
| Designations | |
| 2014 OL339 | |
| Orbital characteristics[1] | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 1 | |
| Observation arc | 2.10 yr (768 days) |
| Aphelion | 1.4598 AU |
| Perihelion | 0.5388 AU |
| 0.9993 AU | |
| Eccentricity | 0.4608 |
| 1.00 yr (365 days) | |
| 285.00° | |
| 0° 59m 12.12s / day | |
| Inclination | 10.187° |
| 252.18° | |
| 289.69° | |
| Earth MOID | 0.0179 AU |
| Physical characteristics | |
| Dimensions | 170 m (est. at 0.25)[3] |
| 22.9[1] | |
2014 OL339 (also written 2014 OL339) is an Aten asteroid that is a temporary quasi-satellite of Earth, the fourth known Earth quasi-satellite.[4]
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