SpaceAtlas Space Object Data
NASA JPL SBDB · 2026 KT1

2026 KT1

2026 KT1 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.912 AU and a period of 0.87 yr.

Aten Observations: 60
Orbital Period · P
0.87 yr
v(q)
36.7 km/s
v(Q)
26.5 km/s
Diameter · ≈
0.03 km
TJ
6.47
Eccentricity · e
0.1625

Orbit and dynamics

The path is an ellipse reaching 0.764 AU from the Sun at perihelion and 1.06 AU at aphelion, a radial span of 0.296 AU.

Applying Kepler's third law to a = 0.912 AU gives an orbital period of 0.87 yr, or about 318 days.

An eccentricity of 0.163 makes the orbit moderately elongated.

A steep inclination of 22.39° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 36.7 km/s at perihelion and falls to 26.5 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 = 25.75 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.03 km.

Observation record and orbit quality

The current orbit solution is based on 60 observations and has a weighted RMS residual of 0.37 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
0.9118 AU
Eccentricity
0.1625
Perihelion
0.764 AU
Aphelion
1.059968 AU
Inclination
22.39°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
162.34°

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
2046-May-19 17:17 0.086008 AU
12866548 km
12.57 km/s
2053-May-20 03:27 0.069669 AU
10422379 km
11.22 km/s
2073-May-19 05:17 0.022710 AU
3397328 km
11.63 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
25.75

Orbit Quality

RMS
0.37001
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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