SpaceAtlas Space Object Data
NASA JPL SBDB · 2023 OF

2023 OF

2023 OF belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.321 AU it takes 1.52 yr to circle the Sun.

Apollo Observations: 28
Orbital Period · P
1.52 yr
v(q)
36.5 km/s
v(Q)
18.4 km/s
Diameter · ≈
0.05 km
TJ
4.87
Eccentricity · e
0.3284

Orbit and dynamics

The path is an ellipse reaching 0.887 AU from the Sun at perihelion and 1.755 AU at aphelion, a radial span of 0.868 AU.

Applying Kepler's third law to a = 1.321 AU gives an orbital period of 1.52 yr, or about 555 days.

An eccentricity of 0.328 makes the orbit moderately elongated.

The orbital plane is tilted 13.04° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 36.5 km/s at perihelion and falls to 18.4 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 = 24.47 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.05 km.

Observation record and orbit quality

The current orbit solution is based on 28 observations and has a weighted RMS residual of 0.4528 arcseconds.

Condition code U = 8 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
1.321 AU
Eccentricity
0.3284
Perihelion
0.887 AU
Aphelion
1.754816 AU
Inclination
13.04°
Orbital Period
— yr
Epoch
2460153.5
Mean Anomaly
315.77°

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
2026-Dec-24 09:50 0.169737 AU
25392357 km
7.37 km/s
2029-Dec-24 00:46 0.113021 AU
16907702 km
11.47 km/s
2033-Jan-01 07:43 0.111255 AU
16643487 km
17.75 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
24.47

Orbit Quality

RMS
0.45284
Condition
8
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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