 The orbit of 2017 OO1 and positions on 8/1/2017 | |
| Discovery[1] | |
|---|---|
| Discovered by | ATLAS-MLO |
| Discovery site | Mauna Loa Obs. |
| Discovery date | 23 July 2017 (first observed only) |
| Designations | |
| 2017 OO1 | |
| NEO · Aten[1][2] | |
| Orbital characteristics[2] | |
| Epoch 23 March 2018 (JD 2458200.5) | |
| Uncertainty parameter 4 | |
| Observation arc | 9 days |
| Aphelion | 1.0173 AU |
| Perihelion | 0.7714 AU |
| 0.8943 AU | |
| Eccentricity | 0.1375 |
| 309 days | |
| 97.402° | |
| 1° 9m 55.08s / day | |
| Inclination | 20.026° |
| 298.31° | |
| 186.14° | |
| Earth MOID | 0.0001982 AU (0.0771 LD) |
| Physical characteristics | |
| 35 m (est. at 0.24)[3] 35–77 m (estimate)[4] 76 m (est. at 0.05)[3] | |
| 24.5[2] | |
2017 OO1 is a small asteroid, classified as near-Earth object of the Aten group, approximately 35–76 meters (115–249 feet) in diameter. It was first observed on 23 July 2017, by the robotic ATLAS survey at Mauna Loa Observatory, Hawaii, two days after the object had approached Earth at 0.33 lunar distances on 21 July 2017.[1][2]
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