SpaceAtlas Space Object Data
NASA JPL SBDB · 531060

531060

531060 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.918 AU and a period of 0.88 yr.

Aten Observations: 119
Orbital Period · P
0.88 yr
v(q)
55 km/s
v(Q)
17.6 km/s
Diameter · ≈
0.37 km
TJ
6.1
Eccentricity · e
0.5153

Orbit and dynamics

The path is an ellipse reaching 0.445 AU from the Sun at perihelion and 1.39 AU at aphelion, a radial span of 0.945 AU.

Applying Kepler's third law to a = 0.918 AU gives an orbital period of 0.88 yr, or about 321 days.

The high eccentricity (0.515) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 53.64° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 55 km/s at perihelion and falls to 17.6 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 = 19.89 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.37 km.

Observation record and orbit quality

The current orbit solution is based on 119 observations and has a weighted RMS residual of 0.4933 arcseconds.

Condition code U = 0 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
0.9176 AU
Eccentricity
0.5153
Perihelion
0.445 AU
Aphelion
1.390439 AU
Inclination
53.64°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
334.7°

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
2027-Mar-10 11:32 0.094176 AU
14088589 km
27.46 km/s
2049-Mar-06 19:37 0.044601 AU
6672187 km
29.56 km/s
2056-Mar-10 15:25 0.129154 AU
19321107 km
26.95 km/s
2071-Mar-02 11:30 0.186255 AU
27863298 km
32.71 km/s
2078-Mar-07 13:48 0.036048 AU
5392766 km
29.32 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
19.89

Orbit Quality

RMS
0.49328
Condition
0
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

Explore asteroids, comets and near-Earth objects with JPL orbital data.