SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 KB2

2020 KB2

2020 KB2 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.262 AU once every 1.42 yr.

Amor Observations: 41
Orbital Period · P
1.42 yr
v(q)
31.6 km/s
v(Q)
22.2 km/s
Diameter · ≈
0.04 km
TJ
5.07
Eccentricity · e
0.1752

Orbit and dynamics

Between its closest point (1.041 AU) and its farthest (1.483 AU), the heliocentric distance changes by 0.442 AU over every revolution.

One full revolution takes 1.42 yr (518 days), computed from the semi-major axis of 1.262 AU.

An eccentricity of 0.175 makes the orbit moderately elongated.

The orbital plane is tilted 13.17° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 31.6 km/s at perihelion and falls to 22.2 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 = 24.6 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.04 km.

Observation record and orbit quality

Astrometry from 41 individual observations underpins this orbit; the fit leaves an RMS residual of 0.2891 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
1.262 AU
Eccentricity
0.1752
Perihelion
1.041 AU
Aphelion
1.483102 AU
Inclination
13.17°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
126.44°

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
2026-Dec-03 04:21 0.387718 AU
58001801 km
8.55 km/s
2033-Oct-25 00:57 0.474848 AU
71036220 km
9.51 km/s
2037-May-10 15:47 0.033646 AU
5033385 km
9.35 km/s
2047-Apr-29 07:54 0.185324 AU
27724074 km
8.84 km/s
2064-May-01 10:26 0.055085 AU
8240535 km
7.16 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
24.6

Orbit Quality

RMS
0.28906
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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