SpaceAtlas Space Object Data
NASA JPL SBDB · 2026 AD2

2026 AD2

2026 AD2 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.948 AU and a period of 0.92 yr.

Aten Observations: 28
Orbital Period · P
0.92 yr
v(q)
35.8 km/s
v(Q)
26.1 km/s
Diameter · ≈
0.02 km
TJ
6.33
Eccentricity · e
0.1572

Orbit and dynamics

Between its closest point (0.799 AU) and its farthest (1.097 AU), the heliocentric distance changes by 0.298 AU over every revolution.

One full revolution takes 0.92 yr (337 days), computed from the semi-major axis of 0.948 AU.

An eccentricity of 0.157 makes the orbit moderately elongated.

Its inclination of 0.82° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 35.8 km/s at perihelion and falls to 26.1 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 = 26.18 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 28 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4491 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
0.9483 AU
Eccentricity
0.1572
Perihelion
0.799 AU
Aphelion
1.097373 AU
Inclination
0.82°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
287.51°

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
2027-Apr-18 15:54 0.127797 AU
19118091 km
8.67 km/s
2038-Jan-07 19:40 0.073018 AU
10923345 km
3.53 km/s
2039-Apr-17 02:06 0.153370 AU
22943812 km
9.76 km/s
2049-Oct-09 05:45 0.169611 AU
25373458 km
4.83 km/s
2050-Feb-17 08:19 0.107420 AU
16069864 km
4.04 km/s
2050-Jun-22 20:14 0.167902 AU
25117807 km
4.49 km/s
2060-Dec-17 04:16 0.144441 AU
21608114 km
9.36 km/s
2062-Apr-05 15:09 0.062141 AU
9296124 km
3.42 km/s
2072-Dec-15 01:49 0.093260 AU
13951483 km
7.82 km/s
2074-Apr-16 18:55 0.025359 AU
3793685 km
3.94 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
26.18

Orbit Quality

RMS
0.44906
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.

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