2020 OY4
2020 OY4 is a very small asteroid classified as a near-Earth object that passed within 21,850 miles (35,160 km) of the surface of Earth on July 28, 2020, with a fly-by speed of 12.4 kilometres (7.7 mi) per second. The car-sized asteroid posed no risk of impact to Earth, but it did pass within the orbit of satellites in the geostationary ring at 35,785 kilometres (22,236 mi) above Earth's equator.
| Discovery | |
|---|---|
| Discovered by | MLS |
| Discovery site | Mount Lemmon Obs. |
| Discovery date | July 26, 2020 |
| Designations | |
MPC designation | 2020 OY4 |
Minor planet category | NEO · Apollo |
| Orbital characteristics | |
| Epoch 31 May 2020 (JD 2459000.5) | |
| Uncertainty parameter 6 · 7 | |
| Observation arc | 2 days |
| Aphelion | 1.5623 AU |
| Perihelion | 0.6873 AU |
Semi-major axis | 1.1248 AU |
| Eccentricity | 0.3889 |
Orbital period (sidereal) | 1.19 yr (436 d) |
Mean anomaly | 257.94° |
Mean motion | 0° 49m 34.32s / day |
| Inclination | 2.1148° |
Longitude of ascending node | 305.50° |
| 98.703° | |
| Earth MOID | 0.0000879 AU (0.034 LD) |
| Physical characteristics | |
Mean diameter | 2–5 m |
| 30.18 30.35 | |
The asteroid was discovered July 26, 2020 using the Mount Lemmon Survey telescope in the Santa Catalina Mountains northeast of Tucson, Arizona. The next encounter closer than the Moon is predicted to occur July 30, 2055 at a distance of 200,000 kilometres (124,000 mi) or more.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.