SpaceAtlas Space Object Data
NASA JPL SBDB · 2023 UD10

2023 UD10

2023 UD10 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.344 AU once every 1.56 yr.

Amor Observations: 21
Orbital Period · P
1.56 yr
v(q)
31.6 km/s
v(Q)
20.9 km/s
Diameter · ≈
0.03 km
TJ
4.86
Eccentricity · e
0.2045

Orbit and dynamics

Between its closest point (1.069 AU) and its farthest (1.619 AU), the heliocentric distance changes by 0.55 AU over every revolution.

One full revolution takes 1.56 yr (569 days), computed from the semi-major axis of 1.344 AU.

An eccentricity of 0.204 makes the orbit moderately elongated.

Its inclination of 3.88° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 31.6 km/s at perihelion and falls to 20.9 km/s at aphelion.

Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 25.68 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.03 km.

Observation record and orbit quality

Astrometry from 21 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4773 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

Semi-Major Axis
1.344 AU
Eccentricity
0.2045
Perihelion
1.069 AU
Aphelion
1.618848 AU
Inclination
3.88°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
240.78°

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 distanceVelocity
2035-Feb-08 18:21 0.376635 AU
56343735 km
5.59 km/s
2037-Oct-31 18:23 0.062303 AU
9320428 km
4.66 km/s

Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
25.68

Orbit Quality

RMS
0.47726
Condition
7
Orbit ID
—
Data source: NASA JPL Small-Body Database · NASA CNEOS. 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.

Keep exploring

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