| Discovery[1][2] | |
|---|---|
| Discovered by | MLS |
| Discovery site | Mount Lemmon Obs. |
| Discovery date | July 26, 2020 |
| Designations | |
| 2020 OY4 | |
| NEO · Apollo[1][2] | |
| Orbital characteristics[2] | |
| Epoch 31 May 2020 (JD 2459000.5) | |
| Uncertainty parameter 6[2] · 7[1] | |
| Observation arc | 2 days |
| Aphelion | 1.5623AU |
| Perihelion | 0.6873 AU |
| 1.1248 AU | |
| Eccentricity | 0.3889 |
| 1.19yr (436 d) | |
| 257.94° | |
| 0° 49m 34.32s / day | |
| Inclination | 2.1148° |
| 305.50° | |
| 98.703° | |
| Earth MOID | 0.0000879 AU (0.034 LD) |
| Physical characteristics | |
| 2–5 m[3] | |
| 30.18[2] 30.35[1] | |
2020 OY4 is a very smallasteroid classified as anear-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.[3] The car-sized asteroid posed no risk of impact to Earth, but it did pass within the orbit of satellites in thegeostationary ring at 35,785 kilometres (22,236 mi) above Earth's equator.[4]
The asteroid was discovered July 26, 2020 using theMount Lemmon Survey telescope in theSanta Catalina Mountains northeast of Tucson, Arizona.[3] The next encounter closer than theMoon is predicted to occur July 30, 2055 at a distance of 200,000 kilometres (124,000 mi) or more.[2]
2020 in space | ||
|---|---|---|
| Space probe launches  |
|   _on_Jul_14_2020_aligned_to_stars.jpg) |
| Impact events | ||
| Selected NEOs | ||
| Exoplanets |
| |
| Discoveries |
| |
| Comets | ||
| Space exploration |
| |
 | This near-Earth asteroid-related article is astub. You can help Wikipedia byexpanding it. |
