 Orbit crossing from Venus to Mars, before and after 2057 Earth flyby | |
| Discovery[1][2] | |
|---|---|
| Discovered by | Pan-STARRS |
| Discovery site | Haleakala Obs. |
| Discovery date | 10 December 2017 (first observed only) |
| Designations | |
| 2017 XO2 | |
| NEO · Apollo[1][3] | |
| Orbital characteristics[3] | |
| Epoch 23 March 2018 (JD 2458200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 6.21 yr (2,268 d) |
| Aphelion | 1.5451 AU |
| Perihelion | 0.7198 AU |
| 1.1325 AU | |
| Eccentricity | 0.3644 |
| 1.21 yr (440 d) | |
| 160.18° | |
| 0° 49m 4.08s / day | |
| Inclination | 14.523° |
| 218.37° | |
| 93.787° | |
| Earth MOID | 0.00027 AU (0.11 LD) |
| Physical characteristics | |
| 100 m (est. at 0.20)[4] 110 m (sentry est.)[5] 200 m (est. at 0.05)[4] | |
| 22.4[3] | |
2017 XO2, also written 2017 XO2, is a sub-kilometer asteroid and near-Earth object of the Apollo group approximately 110 meters (360 feet) in diameter. The asteroid was discovered by Pan-STARRS in December 2017,[1] after it already had approached Earth at 0.051 AU (7,600,000 km) or 20 lunar distances (LD) on 6 November 2017.[3] On 26 April 2057, it will pass Earth at a similar distance of 21 LD again.[3]
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