Orbit and dynamics
The path is an ellipse reaching 0.827 AU from the Sun at perihelion and 1.601 AU at aphelion, a radial span of 0.774 AU.
Applying Kepler's third law to a = 1.214 AU gives an orbital period of 1.34 yr, or about 489 days.
An eccentricity of 0.319 makes the orbit moderately elongated.
Its inclination of 1.92° keeps it close to the plane of the ecliptic.
By the vis-viva equation its orbital speed rises to 37.6 km/s at perihelion and falls to 19.4 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 UX, so its physical size remains unconstrained.
Observation record and orbit quality
The current orbit solution is based on 15 observations and has a weighted RMS residual of 0.9395 arcseconds.
Condition code U = 7 signals a poorly constrained orbit, so its future path should be treated as provisional.
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 |
|---|---|---|
| 2029-Apr-23 22:35 | 0.333022 AU 49819342 km |
6.36 km/s |
| 2040-Aug-29 18:50 | 0.356206 AU 53287608 km |
6.95 km/s |
| 2044-Aug-21 16:39 | 0.404570 AU 60522872 km |
7.64 km/s |
| 2045-Mar-08 21:39 | 0.019177 AU 2868800 km |
7.53 km/s |
| 2048-Aug-17 00:23 | 0.442574 AU 66208058 km |
7.96 km/s |
| 2049-Mar-13 14:06 | 0.019313 AU 2889130 km |
9.01 km/s |
| 2052-Aug-09 18:22 | 0.486225 AU 72738210 km |
8.49 km/s |
| 2053-Mar-20 13:18 | 0.102769 AU 15374021 km |
12.16 km/s |
| 2057-Mar-27 04:04 | 0.160337 AU 23986006 km |
15.74 km/s |
| 2061-Apr-02 19:08 | 0.230616 AU 34499673 km |
19.64 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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