SpaceAtlas Space Object Data
NASA JPL SBDB · 2025 OR5

2025 OR5

2025 OR5 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.036 AU it takes 1.05 yr to circle the Sun.

Apollo Observations: 36
Orbital Period · P
1.05 yr
v(q)
30 km/s
v(Q)
28.5 km/s
Diameter · ≈
0.01 km
TJ
5.91
Eccentricity · e
0.026

Orbit and dynamics

Between its closest point (1.009 AU) and its farthest (1.063 AU), the heliocentric distance changes by 0.054 AU over every revolution.

One full revolution takes 1.05 yr (385 days), computed from the semi-major axis of 1.036 AU.

With e = 0.026, the orbit is close to circular.

Its inclination of 4.68° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 30 km/s at perihelion and falls to 28.5 km/s at aphelion.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 28.41 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

Astrometry from 36 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4753 arcseconds.

Condition code U = 5 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
1.036 AU
Eccentricity
0.026
Perihelion
1.009 AU
Aphelion
1.062936 AU
Inclination
4.68°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
5.65°

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
2044-Mar-17 00:15 0.101366 AU
15164146 km
3.85 km/s
2044-Aug-08 05:41 0.097460 AU
14579789 km
3.02 km/s
2064-Mar-18 08:22 0.101966 AU
15253823 km
4.16 km/s
2065-Jul-30 20:35 0.169600 AU
25371851 km
6.76 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
28.41

Orbit Quality

RMS
0.47535
Condition
5
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.