SpaceAtlas Space Object Data
NASA JPL SBDB · 2026 AF2

2026 AF2

2026 AF2 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.861 AU and a period of 0.80 yr.

Aten Observations: 26
Orbital Period · P
0.80 yr
v(q)
40.4 km/s
v(Q)
25.5 km/s
Diameter · ≈
0.02 km
TJ
6.81
Eccentricity · e
0.2271

Orbit and dynamics

Between its closest point (0.666 AU) and its farthest (1.057 AU), the heliocentric distance changes by 0.391 AU over every revolution.

One full revolution takes 0.80 yr (292 days), computed from the semi-major axis of 0.861 AU.

An eccentricity of 0.227 makes the orbit moderately elongated.

The orbital plane is tilted 12.82° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 40.4 km/s at perihelion and falls to 25.5 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 = 26.78 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 26 individual observations underpins this orbit; the fit leaves an RMS residual of 0.341 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
0.8614 AU
Eccentricity
0.2271
Perihelion
0.666 AU
Aphelion
1.057024 AU
Inclination
12.82°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
311.73°

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
2030-Jan-11 18:21 0.025367 AU
3794841 km
8.21 km/s
2034-Jan-14 07:28 0.029542 AU
4419418 km
7.88 km/s
2038-Jan-19 01:10 0.045287 AU
6774807 km
7.62 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
26.78

Orbit Quality

RMS
0.34102
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.

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