SpaceAtlas Space Object Data
NASA JPL SBDB · 2026 GA

2026 GA

2026 GA is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.907 AU and a period of 0.86 yr.

Aten Observations: 86
Orbital Period · P
0.86 yr
v(q)
35.6 km/s
v(Q)
27.4 km/s
Diameter · ≈
0.02 km
TJ
6.55
Eccentricity · e
0.1296

Orbit and dynamics

Between its closest point (0.79 AU) and its farthest (1.025 AU), the heliocentric distance changes by 0.235 AU over every revolution.

One full revolution takes 0.86 yr (316 days), computed from the semi-major axis of 0.907 AU.

An eccentricity of 0.13 makes the orbit moderately elongated.

The orbital plane is tilted 11.27° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 35.6 km/s at perihelion and falls to 27.4 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 = 25.94 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 86 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4797 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
0.9073 AU
Eccentricity
0.1296
Perihelion
0.79 AU
Aphelion
1.024886 AU
Inclination
11.27°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
278.54°

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
2039-Apr-10 21:29 0.174252 AU
26067749 km
9.79 km/s
2045-Mar-20 06:23 0.090718 AU
13571178 km
6.29 km/s
2057-Nov-07 12:49 0.194462 AU
29091085 km
7.54 km/s
2058-Apr-06 19:41 0.044355 AU
6635399 km
6.90 km/s
2064-Mar-03 17:09 0.179400 AU
26837867 km
7.54 km/s
2076-Nov-18 18:45 0.196439 AU
29386830 km
6.95 km/s
2077-Apr-02 21:53 0.019961 AU
2986093 km
6.32 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
25.94

Orbit Quality

RMS
0.47971
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.