SpaceAtlas Space Object Data
NASA JPL SBDB · 2026 RG2

2026 RG2

2026 RG2 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.951 AU and a period of 0.93 yr.

Aten Observations: 155
Orbital Period · P
0.93 yr
v(q)
36.2 km/s
v(Q)
25.8 km/s
Diameter · ≈
0.02 km
TJ
6.31
Eccentricity · e
0.1686

Orbit and dynamics

Between its closest point (0.79 AU) and its farthest (1.111 AU), the heliocentric distance changes by 0.321 AU over every revolution.

One full revolution takes 0.93 yr (339 days), computed from the semi-major axis of 0.951 AU.

An eccentricity of 0.169 makes the orbit moderately elongated.

The orbital plane is tilted 6.45° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 36.2 km/s at perihelion and falls to 25.8 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 = 26.87 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 155 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3429 arcseconds.

Condition code U = 4 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
0.9506 AU
Eccentricity
0.1686
Perihelion
0.79 AU
Aphelion
1.110871 AU
Inclination
6.45°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
154.77°

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
2040-Apr-15 01:31 0.083154 AU
12439677 km
4.86 km/s
2041-Sep-13 08:55 0.018256 AU
2731072 km
5.89 km/s
2054-Apr-15 15:29 0.085455 AU
12783873 km
4.72 km/s
2055-Sep-13 10:23 0.014457 AU
2162753 km
7.02 km/s
2068-Mar-12 21:53 0.135517 AU
20273096 km
5.12 km/s
2068-Jul-06 02:10 0.143627 AU
21486280 km
3.92 km/s
2068-Nov-30 06:50 0.191274 AU
28614166 km
4.87 km/s
2069-Sep-08 22:13 0.176354 AU
26382136 km
10.49 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
26.87

Orbit Quality

RMS
0.34288
Condition
4
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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