SpaceAtlas Space Object Data
NASA JPL SBDB · 2025 RZ2

2025 RZ2

2025 RZ2 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.183 AU it takes 1.29 yr to circle the Sun.

Apollo Observations: 41
Orbital Period · P
1.29 yr
v(q)
40.5 km/s
v(Q)
18.5 km/s
Diameter · ≈
0.02 km
TJ
5.16
Eccentricity · e
0.3722

Orbit and dynamics

Between its closest point (0.743 AU) and its farthest (1.623 AU), the heliocentric distance changes by 0.88 AU over every revolution.

One full revolution takes 1.29 yr (470 days), computed from the semi-major axis of 1.183 AU.

An eccentricity of 0.372 makes the orbit moderately elongated.

A steep inclination of 30.62° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 40.5 km/s at perihelion and falls to 18.5 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 = 25.89 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 41 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4388 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
1.183 AU
Eccentricity
0.3722
Perihelion
0.743 AU
Aphelion
1.623313 AU
Inclination
30.62°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
156.94°

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-12 19:20 0.030987 AU
4635623 km
19.05 km/s
2034-Sep-18 08:14 0.003418 AU
511393 km
18.10 km/s
2040-Mar-14 22:49 0.035581 AU
5322854 km
20.58 km/s
2043-Sep-22 13:10 0.046829 AU
7005491 km
16.76 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
25.89

Orbit Quality

RMS
0.43878
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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