SpaceAtlas Space Object Data
NASA JPL SBDB · 2026 MZ

2026 MZ

2026 MZ is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.73 AU and a period of 0.62 yr.

Aten Observations: 37
Orbital Period · P
0.62 yr
v(q)
59.6 km/s
v(Q)
20.4 km/s
Diameter · ≈
0.03 km
TJ
7.68
Eccentricity · e
0.4897

Orbit and dynamics

Between its closest point (0.372 AU) and its farthest (1.087 AU), the heliocentric distance changes by 0.715 AU over every revolution.

One full revolution takes 0.62 yr (228 days), computed from the semi-major axis of 0.73 AU.

The high eccentricity (0.49) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 32.35° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 59.6 km/s at perihelion and falls to 20.4 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 = 25.63 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.03 km.

Observation record and orbit quality

Astrometry from 37 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4348 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
0.7296 AU
Eccentricity
0.4897
Perihelion
0.372 AU
Aphelion
1.086885 AU
Inclination
32.35°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
210.05°

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

No close approaches to Earth are currently on record for this object.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
25.63

Orbit Quality

RMS
0.43476
Condition
6
Orbit ID
—
Data source: NASA JPL Small-Body Database . 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.

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