SpaceAtlas Space Object Data
NASA JPL SBDB · 2025 FC

2025 FC

2025 FC belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.164 AU it takes 1.26 yr to circle the Sun.

Apollo Observations: 69
Orbital Period · P
1.26 yr
v(q)
51 km/s
v(Q)
14.9 km/s
Diameter · ≈
0.01 km
TJ
5.26
Eccentricity · e
0.5474

Orbit and dynamics

The path is an ellipse reaching 0.527 AU from the Sun at perihelion and 1.801 AU at aphelion, a radial span of 1.274 AU.

Applying Kepler's third law to a = 1.164 AU gives an orbital period of 1.26 yr, or about 459 days.

The high eccentricity (0.547) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

Its inclination of 1.92° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 51 km/s at perihelion and falls to 14.9 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 = 28.75 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

The current orbit solution is based on 69 observations and has a weighted RMS residual of 0.3441 arcseconds.

Condition code U = 7 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
1.164 AU
Eccentricity
0.5474
Perihelion
0.527 AU
Aphelion
1.801174 AU
Inclination
1.92°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
35.79°

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-Mar-24 13:28 0.102535 AU
15338992 km
20.74 km/s
2067-Aug-07 06:47 0.022294 AU
3335072 km
19.55 km/s
2072-Aug-11 17:45 0.021760 AU
3255216 km
16.06 km/s
2074-Mar-12 08:38 0.002385 AU
356853 km
11.61 km/s
2077-Aug-17 14:40 0.023303 AU
3486142 km
12.03 km/s
2079-Mar-18 00:09 0.000248 AU
37085 km
15.80 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
28.75

Orbit Quality

RMS
0.34408
Condition
7
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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