SpaceAtlas Space Object Data
NASA JPL SBDB · 2025 DM7

2025 DM7

2025 DM7 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.799 AU and a period of 0.71 yr.

Aten Observations: 38
Orbital Period · P
0.71 yr
v(q)
44 km/s
v(Q)
25.2 km/s
Diameter · ≈
0.01 km
TJ
7.26
Eccentricity · e
0.2713

Orbit and dynamics

The path is an ellipse reaching 0.583 AU from the Sun at perihelion and 1.016 AU at aphelion, a radial span of 0.433 AU.

Applying Kepler's third law to a = 0.799 AU gives an orbital period of 0.71 yr, or about 261 days.

An eccentricity of 0.271 makes the orbit moderately elongated.

The orbital plane is tilted 8.21° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 44 km/s at perihelion and falls to 25.2 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 = 27.1 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 38 observations and has a weighted RMS residual of 0.3861 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
0.7995 AU
Eccentricity
0.2713
Perihelion
0.583 AU
Aphelion
1.016404 AU
Inclination
8.21°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
131.51°

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-01 01:25 0.011780 AU
1762299 km
6.61 km/s
2035-Feb-09 04:02 0.068622 AU
10265678 km
6.28 km/s
2040-Jan-20 09:09 0.109791 AU
16424507 km
7.94 km/s
2058-Mar-09 05:57 0.112136 AU
16775359 km
12.21 km/s
2063-Mar-09 15:07 0.015139 AU
2264702 km
8.89 km/s
2068-Mar-02 17:20 0.003068 AU
458919 km
6.88 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
27.1

Orbit Quality

RMS
0.38614
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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