2020 UX5
2020 UX5 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.232 AU it takes 1.37 yr to circle the Sun.
Orbit and dynamics
Between its closest point (0.986 AU) and its farthest (1.478 AU), the heliocentric distance changes by 0.492 AU over every revolution.
One full revolution takes 1.37 yr (499 days), computed from the semi-major axis of 1.232 AU.
An eccentricity of 0.2 makes the orbit moderately elongated.
The orbital plane is tilted 8.01° relative to the ecliptic.
By the vis-viva equation its orbital speed rises to 32.9 km/s at perihelion and falls to 21.9 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
No direct size measurement is available; from an absolute magnitude of H = 25.9 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.
Observation record and orbit quality
Astrometry from 27 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4203 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 |
|---|---|---|
| 2031-Jun-28 02:32 | 0.186263 AU 27864610 km |
10.05 km/s |
| 2035-May-01 00:32 | 0.315701 AU 47228157 km |
6.63 km/s |
| 2035-Oct-30 00:35 | 0.219407 AU 32822755 km |
13.97 km/s |
| 2057-Jun-21 00:53 | 0.204217 AU 30550442 km |
14.02 km/s |
| 2061-Oct-22 11:49 | 0.036043 AU 5392006 km |
9.65 km/s |
| 2076-Nov-02 07:32 | 0.259986 AU 38893339 km |
16.40 km/s |
Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.
