SpaceAtlas Space Object Data
NASA JPL SBDB · 2012 AO10

2012 AO10

2012 AO10 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.328 AU it takes 1.53 yr to circle the Sun.

Apollo Observations: 33
Orbital Period · P
1.53 yr
v(q)
34.9 km/s
v(Q)
19.1 km/s
Diameter · ≈
0.04 km
TJ
4.88
Eccentricity · e
0.2928

Orbit and dynamics

The path is an ellipse reaching 0.939 AU from the Sun at perihelion and 1.717 AU at aphelion, a radial span of 0.778 AU.

Applying Kepler's third law to a = 1.328 AU gives an orbital period of 1.53 yr, or about 559 days.

An eccentricity of 0.293 makes the orbit moderately elongated.

The orbital plane is tilted 6° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 34.9 km/s at perihelion and falls to 19.1 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 = 24.6 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.04 km.

Observation record and orbit quality

The current orbit solution is based on 33 observations and has a weighted RMS residual of 0.5064 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
1.328 AU
Eccentricity
0.2928
Perihelion
0.939 AU
Aphelion
1.716838 AU
Inclination
6.0°
Orbital Period
— yr
Epoch
2455940.5
Mean Anomaly
31.68°

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

No close approaches to Earth are currently on record for this object.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
24.6

Orbit Quality

RMS
0.50644
Condition
8
Orbit ID
—
Data source: NASA JPL Small-Body Database . 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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