SpaceAtlas Space Object Data
NASA JPL SBDB · 2025 DF8

2025 DF8

2025 DF8 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.13 AU it takes 1.20 yr to circle the Sun.

Apollo Observations: 45
Orbital Period · P
1.20 yr
v(q)
33 km/s
v(Q)
23.8 km/s
Diameter · ≈
0.01 km
TJ
5.52
Eccentricity · e
0.162

Orbit and dynamics

The path is an ellipse reaching 0.947 AU from the Sun at perihelion and 1.313 AU at aphelion, a radial span of 0.366 AU.

Applying Kepler's third law to a = 1.13 AU gives an orbital period of 1.20 yr, or about 439 days.

An eccentricity of 0.162 makes the orbit moderately elongated.

The orbital plane is tilted 6.3° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 33 km/s at perihelion and falls to 23.8 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 = 27.66 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 45 observations and has a weighted RMS residual of 0.4096 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
1.13 AU
Eccentricity
0.162
Perihelion
0.947 AU
Aphelion
1.31306 AU
Inclination
6.3°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
338.71°

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
2031-Mar-18 13:25 0.033726 AU
5045358 km
4.44 km/s
2031-Aug-17 06:40 0.179658 AU
26876444 km
4.40 km/s
2037-May-18 19:02 0.115670 AU
17303966 km
3.82 km/s
2037-Jul-17 20:04 0.118871 AU
17782805 km
3.47 km/s
2043-Jul-14 05:10 0.114342 AU
17105304 km
6.31 km/s
2072-Feb-26 10:47 0.121782 AU
18218360 km
9.35 km/s
2078-Mar-08 07:15 0.004948 AU
740168 km
5.63 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
27.66

Orbit Quality

RMS
0.40964
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

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