SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 UX13

2019 UX13

2019 UX13 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.519 AU once every 1.87 yr.

Amor Observations: 109
Orbital Period · P
1.87 yr
v(q)
33.9 km/s
v(Q)
17.2 km/s
Diameter · ≈
0.19 km
TJ
4.42
Eccentricity · e
0.3274

Orbit and dynamics

The path is an ellipse reaching 1.022 AU from the Sun at perihelion and 2.016 AU at aphelion, a radial span of 0.994 AU.

Applying Kepler's third law to a = 1.519 AU gives an orbital period of 1.87 yr, or about 684 days.

An eccentricity of 0.327 makes the orbit moderately elongated.

The orbital plane is tilted 12.49° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 33.9 km/s at perihelion and falls to 17.2 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 = 21.41 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.19 km.

Observation record and orbit quality

The current orbit solution is based on 109 observations and has a weighted RMS residual of 0.4502 arcseconds.

Condition code U = 1 means the orbit is very well determined, leaving only a small uncertainty in the future ephemeris.

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
1.519 AU
Eccentricity
0.3274
Perihelion
1.022 AU
Aphelion
2.016321 AU
Inclination
12.49°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
225.17°

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
2032-Oct-24 20:36 0.426706 AU
63834348 km
18.32 km/s
2034-Jul-29 21:10 0.346189 AU
51789113 km
12.99 km/s
2047-Jun-19 13:03 0.475321 AU
71106963 km
3.83 km/s
2047-Oct-18 08:37 0.290406 AU
43444087 km
14.68 km/s
2049-Jul-16 06:42 0.468549 AU
70093956 km
16.91 km/s
2062-Oct-10 15:10 0.165236 AU
24719017 km
11.57 km/s
2077-Oct-04 13:57 0.088105 AU
13180345 km
9.79 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
21.41

Orbit Quality

RMS
0.45023
Condition
1
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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