SpaceAtlas Space Object Data
NASA JPL SBDB · 2025 AB2

2025 AB2

2025 AB2 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.581 AU once every 1.99 yr.

Amor Observations: 21
Orbital Period · P
1.99 yr
v(q)
32.5 km/s
v(Q)
17.3 km/s
Diameter · ≈
0.11 km
TJ
4.33
Eccentricity · e
0.3052

Orbit and dynamics

Between its closest point (1.099 AU) and its farthest (2.064 AU), the heliocentric distance changes by 0.965 AU over every revolution.

One full revolution takes 1.99 yr (726 days), computed from the semi-major axis of 1.581 AU.

An eccentricity of 0.305 makes the orbit moderately elongated.

The orbital plane is tilted 7.22° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 32.5 km/s at perihelion and falls to 17.3 km/s at aphelion.

Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 22.52 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.11 km.

Observation record and orbit quality

Astrometry from 21 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3687 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
1.581 AU
Eccentricity
0.3052
Perihelion
1.099 AU
Aphelion
2.063521 AU
Inclination
7.22°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
211.12°

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
2035-Mar-01 22:10 0.146485 AU
21913789 km
3.74 km/s
2037-Mar-03 00:39 0.136656 AU
20443431 km
3.97 km/s
2039-Mar-04 01:26 0.142022 AU
21246213 km
4.43 km/s
2041-Mar-03 19:30 0.135095 AU
20209932 km
5.09 km/s
2043-Mar-04 05:37 0.134035 AU
20051396 km
6.01 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
22.52

Orbit Quality

RMS
0.3687
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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