SpaceAtlas Space Object Data
NASA JPL SBDB · 2026 RG

2026 RG

2026 RG belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.181 AU it takes 1.28 yr to circle the Sun.

Apollo Observations: 49
Orbital Period · P
1.28 yr
v(q)
42.3 km/s
v(Q)
17.8 km/s
Diameter · ≈
0.01 km
TJ
5.27
Eccentricity · e
0.4087

Orbit and dynamics

The path is an ellipse reaching 0.698 AU from the Sun at perihelion and 1.664 AU at aphelion, a radial span of 0.966 AU.

Applying Kepler's third law to a = 1.181 AU gives an orbital period of 1.28 yr, or about 469 days.

The high eccentricity (0.409) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 7.3° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 42.3 km/s at perihelion and falls to 17.8 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 = 27.54 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

The current orbit solution is based on 49 observations and has a weighted RMS residual of 0.3558 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
1.181 AU
Eccentricity
0.4087
Perihelion
0.698 AU
Aphelion
1.663675 AU
Inclination
7.3°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
244.84°

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
2032-Mar-13 14:58 0.134254 AU
20084163 km
17.01 km/s
2039-Sep-02 16:34 0.001876 AU
280590 km
13.96 km/s
2045-Mar-10 04:56 0.046003 AU
6882015 km
14.73 km/s
2052-Aug-28 16:40 0.134743 AU
20157237 km
16.47 km/s
2058-Mar-06 12:58 0.008674 AU
1297659 km
12.61 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
27.54

Orbit Quality

RMS
0.35583
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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