SpaceAtlas Space Object Data
NASA JPL SBDB · 2025 OC

2025 OC

2025 OC belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.095 AU it takes 1.15 yr to circle the Sun.

Apollo Observations: 17
Orbital Period · P
1.15 yr
v(q)
34.8 km/s
v(Q)
23.3 km/s
Diameter · ≈
0.01 km
TJ
5.65
Eccentricity · e
0.1991

Orbit and dynamics

Between its closest point (0.877 AU) and its farthest (1.313 AU), the heliocentric distance changes by 0.436 AU over every revolution.

One full revolution takes 1.15 yr (419 days), computed from the semi-major axis of 1.095 AU.

An eccentricity of 0.199 makes the orbit moderately elongated.

The orbital plane is tilted 6.57° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 34.8 km/s at perihelion and falls to 23.3 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 = 27.88 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

Astrometry from 17 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3956 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
1.095 AU
Eccentricity
0.1991
Perihelion
0.877 AU
Aphelion
1.313014 AU
Inclination
6.57°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
223.07°

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
2049-Dec-23 04:45 0.050797 AU
7599157 km
6.10 km/s
2057-Dec-27 19:35 0.051319 AU
7677200 km
10.11 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
27.88

Orbit Quality

RMS
0.39564
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.