SpaceAtlas Space Object Data
NASA JPL SBDB · 2013 JX2

2013 JX2

2013 JX2 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.649 AU once every 2.12 yr.

Amor Observations: 170
Orbital Period · P
2.12 yr
v(q)
32.7 km/s
v(Q)
16.5 km/s
Diameter · ≈
0.26 km
TJ
4.19
Eccentricity · e
0.3299

Orbit and dynamics

Between its closest point (1.105 AU) and its farthest (2.193 AU), the heliocentric distance changes by 1.088 AU over every revolution.

One full revolution takes 2.12 yr (773 days), computed from the semi-major axis of 1.649 AU.

An eccentricity of 0.33 makes the orbit moderately elongated.

The orbital plane is tilted 12.76° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 32.7 km/s at perihelion and falls to 16.5 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 = 20.7 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.26 km.

Observation record and orbit quality

Astrometry from 170 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3852 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
1.649 AU
Eccentricity
0.3299
Perihelion
1.105 AU
Aphelion
2.193005 AU
Inclination
12.76°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
57.67°

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
2030-May-27 11:28 0.257975 AU
38592442 km
8.05 km/s
2049-Jun-07 11:10 0.158498 AU
23710909 km
9.15 km/s
2066-May-26 23:27 0.279139 AU
41758530 km
8.34 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
20.7

Orbit Quality

RMS
0.38523
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.

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