SpaceAtlas Space Object Data
NASA JPL SBDB · 2026 FX3

2026 FX3

2026 FX3 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.967 AU and a period of 0.95 yr.

Aten Observations: 67
Orbital Period · P
0.95 yr
v(q)
37.3 km/s
v(Q)
24.6 km/s
Diameter · ≈
0.02 km
TJ
6.2
Eccentricity · e
0.2061

Orbit and dynamics

Between its closest point (0.768 AU) and its farthest (1.167 AU), the heliocentric distance changes by 0.399 AU over every revolution.

One full revolution takes 0.95 yr (347 days), computed from the semi-major axis of 0.967 AU.

An eccentricity of 0.206 makes the orbit moderately elongated.

The orbital plane is tilted 14.17° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 37.3 km/s at perihelion and falls to 24.6 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 = 26.03 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 67 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5682 arcseconds.

Condition code U = 6 indicates a moderately constrained orbit; predictions decades ahead still carry noticeable uncertainty.

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
0.9673 AU
Eccentricity
0.2061
Perihelion
0.768 AU
Aphelion
1.166661 AU
Inclination
14.17°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
352.65°

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
2042-Oct-20 07:25 0.114465 AU
17123720 km
11.18 km/s
2045-Mar-23 19:23 0.120716 AU
18058876 km
7.70 km/s
2046-Mar-19 11:59 0.142478 AU
21314335 km
13.57 km/s
2062-Sep-29 04:14 0.137734 AU
20604658 km
8.95 km/s
2065-Mar-22 22:24 0.026562 AU
3973628 km
10.78 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
26.03

Orbit Quality

RMS
0.56821
Condition
6
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.