SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 UD3

2022 UD3

2022 UD3 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.244 AU it takes 1.39 yr to circle the Sun.

Apollo Observations: 48
Orbital Period · P
1.39 yr
v(q)
34.2 km/s
v(Q)
20.9 km/s
Diameter · ≈
0.02 km
TJ
5.12
Eccentricity · e
0.2423

Orbit and dynamics

Between its closest point (0.943 AU) and its farthest (1.545 AU), the heliocentric distance changes by 0.602 AU over every revolution.

One full revolution takes 1.39 yr (507 days), computed from the semi-major axis of 1.244 AU.

An eccentricity of 0.242 makes the orbit moderately elongated.

The orbital plane is tilted 8.24° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 34.2 km/s at perihelion and falls to 20.9 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 = 26.04 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 48 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4762 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
1.244 AU
Eccentricity
0.2423
Perihelion
0.943 AU
Aphelion
1.545421 AU
Inclination
8.24°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
187.0°

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
2029-Oct-04 04:48 0.313344 AU
46875655 km
16.33 km/s
2030-Apr-18 05:32 0.390213 AU
58374977 km
7.52 km/s
2033-Jul-29 10:49 0.454384 AU
67974949 km
7.05 km/s
2041-Feb-09 18:03 0.141281 AU
21135387 km
8.43 km/s
2054-Sep-28 09:04 0.477198 AU
71387851 km
19.77 km/s
2055-Apr-29 00:46 0.445339 AU
66621827 km
8.03 km/s
2059-Feb-22 08:15 0.251274 AU
37590020 km
14.88 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
26.04

Orbit Quality

RMS
0.47621
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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