Orbit and dynamics
The path is an ellipse reaching 0.625 AU from the Sun at perihelion and 1.415 AU at aphelion, a radial span of 0.79 AU.
Applying Kepler's third law to a = 1.02 AU gives an orbital period of 1.03 yr, or about 376 days.
An eccentricity of 0.387 makes the orbit moderately elongated.
Its inclination of 3.59° keeps it close to the plane of the ecliptic.
By the vis-viva equation its orbital speed rises to 44.4 km/s at perihelion and falls to 19.6 km/s at aphelion.
Because q < 1 AU and Q > 1 AU, this orbit geometrically intersects the region of Earth's orbit.
Size and surface
Neither a measured diameter nor a reliable absolute magnitude is available for 2020 OY4, so its physical size remains unconstrained.
Observation record and orbit quality
The current orbit solution is based on 68 observations and has a weighted RMS residual of 0.3373 arcseconds.
Condition code U = 6 indicates a moderately constrained orbit; predictions decades ahead still carry noticeable uncertainty.
About these computed values
Orbital periods, perihelion and aphelion speeds, and diameter estimates on this page are computed by SpaceAtlas from the JPL SBDB orbital elements. They are derived quantities, not values copied from the source catalogue.
Orbital Parameters
Orbit diagram
The Sun sits at the focus (orange). Earth's orbit is the grey circle at 1 AU. The red dot marks the object's position at the catalog epoch.
3D orbit (interactive)
Drag to rotate; scroll or pinch to zoom. The Sun is at the focus (orange), Earth's orbit is the grey ring at 1 AU, and the red dot marks the object's current position.
Close approaches
Predicted close approaches to Earth, from NASA's Center for Near-Earth Object Studies (CNEOS).
| Date (UTC) | Miss distance | Velocity |
|---|---|---|
| 2027-Jan-06 16:32 | 0.293816 AU 43954218 km |
10.50 km/s |
| 2027-Apr-04 22:50 | 0.295520 AU 44209114 km |
8.22 km/s |
| 2028-Mar-05 01:02 | 0.153073 AU 22899371 km |
7.06 km/s |
| 2029-Mar-07 03:08 | 0.040650 AU 6081135 km |
12.15 km/s |
| 2030-Mar-15 05:43 | 0.188885 AU 28256796 km |
17.78 km/s |
| 2031-Mar-23 17:51 | 0.367439 AU 54968101 km |
23.41 km/s |
| 2052-Jul-08 00:00 | 0.400723 AU 59947310 km |
25.86 km/s |
| 2053-Jul-16 02:32 | 0.222944 AU 33352014 km |
20.63 km/s |
| 2054-Jul-23 22:57 | 0.042471 AU 6353535 km |
15.38 km/s |
| 2055-Jul-30 13:59 | 0.001265 AU 189224 km |
10.23 km/s |
| 2057-Jun-23 07:12 | 0.300853 AU 45006922 km |
8.65 km/s |
| 2058-Jun-05 12:40 | 0.376102 AU 56264080 km |
9.51 km/s |
| 2058-Nov-02 08:54 | 0.355429 AU 53171470 km |
13.79 km/s |
| 2059-May-20 23:22 | 0.407719 AU 60993878 km |
9.84 km/s |
| 2059-Nov-25 10:13 | 0.362798 AU 54273762 km |
14.20 km/s |
| 2060-May-04 21:54 | 0.391615 AU 58584753 km |
9.71 km/s |
| 2060-Dec-18 07:04 | 0.333229 AU 49850378 km |
12.73 km/s |
| 2061-Apr-18 12:13 | 0.346481 AU 51832853 km |
9.07 km/s |
| 2062-Jan-16 20:36 | 0.267230 AU 39977014 km |
9.08 km/s |
| 2062-Mar-28 00:46 | 0.262454 AU 39262526 km |
7.67 km/s |
| 2063-Mar-03 23:01 | 0.102768 AU 15373894 km |
8.66 km/s |
| 2064-Mar-09 18:51 | 0.080885 AU 12100176 km |
14.28 km/s |
| 2065-Mar-18 08:36 | 0.248175 AU 37126435 km |
20.09 km/s |
| 2066-Mar-27 04:52 | 0.421127 AU 62999661 km |
25.89 km/s |
Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.
Physical Parameters
Orbit Quality
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