SpaceAtlas Space Object Data
NASA JPL SBDB · 2010 AF3

2010 AF3

2010 AF3 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.016 AU it takes 1.02 yr to circle the Sun.

Apollo Observations: 28
Orbital Period · P
1.02 yr
v(q)
33.4 km/s
v(Q)
26.1 km/s
Diameter · ≈
0.02 km
TJ
5.98
Eccentricity · e
0.1236

Orbit and dynamics

Between its closest point (0.891 AU) and its farthest (1.142 AU), the heliocentric distance changes by 0.251 AU over every revolution.

One full revolution takes 1.02 yr (374 days), computed from the semi-major axis of 1.016 AU.

An eccentricity of 0.124 makes the orbit moderately elongated.

The orbital plane is tilted 11.82° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 33.4 km/s at perihelion and falls to 26.1 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 = 26.12 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 28 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6114 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
1.016 AU
Eccentricity
0.1236
Perihelion
0.891 AU
Aphelion
1.141578 AU
Inclination
11.82°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
273.38°

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
2049-Jan-10 16:34 0.155075 AU
23198943 km
16.52 km/s
2050-Jan-14 20:52 0.091614 AU
13705310 km
12.35 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
26.12

Orbit Quality

RMS
0.61142
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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