SpaceAtlas Space Object Data
NASA JPL SBDB · 2025 RY3

2025 RY3

2025 RY3 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.413 AU once every 1.68 yr.

Amor Observations: 36
Orbital Period · P
1.68 yr
v(q)
32 km/s
v(Q)
19.6 km/s
Diameter · ≈
0.06 km
TJ
4.68
Eccentricity · e
0.2407

Orbit and dynamics

The path is an ellipse reaching 1.073 AU from the Sun at perihelion and 1.753 AU at aphelion, a radial span of 0.68 AU.

Applying Kepler's third law to a = 1.413 AU gives an orbital period of 1.68 yr, or about 613 days.

An eccentricity of 0.241 makes the orbit moderately elongated.

The orbital plane is tilted 8.82° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 32 km/s at perihelion and falls to 19.6 km/s at aphelion.

Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 23.83 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.06 km.

Observation record and orbit quality

The current orbit solution is based on 36 observations and has a weighted RMS residual of 0.4529 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
1.413 AU
Eccentricity
0.2407
Perihelion
1.073 AU
Aphelion
1.753109 AU
Inclination
8.82°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
177.28°

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-Sep-11 00:54 0.190253 AU
28461407 km
8.98 km/s
2062-Aug-28 06:37 0.147396 AU
22050058 km
5.58 km/s
2067-Sep-07 19:03 0.080756 AU
12080926 km
6.87 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
23.83

Orbit Quality

RMS
0.45288
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.

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