SpaceAtlas Space Object Data
NASA JPL SBDB · 2024 WA4

2024 WA4

2024 WA4 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.099 AU once every 1.15 yr.

Amor Observations: 15
Orbital Period · P
1.15 yr
v(q)
30.3 km/s
v(Q)
26.6 km/s
Diameter · ≈
0.02 km
TJ
5.65
Eccentricity · e
0.064

Orbit and dynamics

Between its closest point (1.028 AU) and its farthest (1.169 AU), the heliocentric distance changes by 0.141 AU over every revolution.

One full revolution takes 1.15 yr (421 days), computed from the semi-major axis of 1.099 AU.

With e = 0.064, the orbit is close to circular.

The orbital plane is tilted 6.59° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 30.3 km/s at perihelion and falls to 26.6 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 = 26.8 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 15 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6443 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
1.099 AU
Eccentricity
0.064
Perihelion
1.028 AU
Aphelion
1.169336 AU
Inclination
6.59°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
105.88°

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-Jun-14 02:45 0.166481 AU
24905228 km
3.88 km/s
2062-Nov-19 12:23 0.047774 AU
7146927 km
3.65 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
26.8

Orbit Quality

RMS
0.64431
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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