SpaceAtlas Space Object Data
NASA JPL SBDB · 2024 JC

2024 JC

2024 JC is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.154 AU once every 1.24 yr.

Amor Observations: 20
Orbital Period · P
1.24 yr
v(q)
30.2 km/s
v(Q)
25.5 km/s
Diameter · ≈
0.04 km
TJ
5.31
Eccentricity · e
0.0847

Orbit and dynamics

Between its closest point (1.056 AU) and its farthest (1.252 AU), the heliocentric distance changes by 0.196 AU over every revolution.

One full revolution takes 1.24 yr (453 days), computed from the semi-major axis of 1.154 AU.

With e = 0.085, the orbit is close to circular.

A steep inclination of 31.69° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 30.2 km/s at perihelion and falls to 25.5 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 = 24.68 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.04 km.

Observation record and orbit quality

Astrometry from 20 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3634 arcseconds.

Condition code U = 8 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
1.154 AU
Eccentricity
0.0847
Perihelion
1.056 AU
Aphelion
1.251744 AU
Inclination
31.69°
Orbital Period
— yr
Epoch
2460431.5
Mean Anomaly
29.56°

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-Apr-26 03:57 0.132274 AU
19787866 km
17.16 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
24.68

Orbit Quality

RMS
0.36345
Condition
8
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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