SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 UX1

2019 UX1

2019 UX1 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.969 AU and a period of 0.95 yr.

Aten Observations: 124
Orbital Period · P
0.95 yr
v(q)
38.8 km/s
v(Q)
23.6 km/s
Diameter · ≈
0.05 km
TJ
6.18
Eccentricity · e
0.2426

Orbit and dynamics

Between its closest point (0.734 AU) and its farthest (1.204 AU), the heliocentric distance changes by 0.47 AU over every revolution.

One full revolution takes 0.95 yr (349 days), computed from the semi-major axis of 0.969 AU.

An eccentricity of 0.243 makes the orbit moderately elongated.

The orbital plane is tilted 14.06° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 38.8 km/s at perihelion and falls to 23.6 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

No direct size measurement is available; from an absolute magnitude of H = 24.09 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.05 km.

Observation record and orbit quality

Astrometry from 124 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3589 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

Semi-Major Axis
0.9692 AU
Eccentricity
0.2426
Perihelion
0.734 AU
Aphelion
1.204328 AU
Inclination
14.06°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
67.92°

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
2040-Oct-17 14:12 0.035708 AU
5341803 km
9.40 km/s
2044-Mar-16 15:04 0.140462 AU
21012764 km
12.39 km/s
2060-Oct-19 07:59 0.039830 AU
5958428 km
11.51 km/s
2064-Mar-27 18:20 0.123779 AU
18517020 km
10.25 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
24.09

Orbit Quality

RMS
0.35892
Condition
6
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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