SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 KJ7

2020 KJ7

2020 KJ7 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.288 AU once every 1.46 yr.

Amor Observations: 106
Orbital Period · P
1.46 yr
v(q)
31.9 km/s
v(Q)
21.6 km/s
Diameter · ≈
0.04 km
TJ
5.02
Eccentricity · e
0.1925

Orbit and dynamics

The path is an ellipse reaching 1.04 AU from the Sun at perihelion and 1.536 AU at aphelion, a radial span of 0.496 AU.

Applying Kepler's third law to a = 1.288 AU gives an orbital period of 1.46 yr, or about 534 days.

An eccentricity of 0.193 makes the orbit moderately elongated.

Its inclination of 3.35° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 31.9 km/s at perihelion and falls to 21.6 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 = 24.99 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.04 km.

Observation record and orbit quality

The current orbit solution is based on 106 observations and has a weighted RMS residual of 0.5306 arcseconds.

Condition code U = 5 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
1.288 AU
Eccentricity
0.1925
Perihelion
1.04 AU
Aphelion
1.53594 AU
Inclination
3.35°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
7.41°

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
2036-Apr-03 19:38 0.377831 AU
56522703 km
5.33 km/s
2036-Sep-10 10:53 0.436365 AU
65279200 km
15.38 km/s
2039-Jul-14 18:21 0.026500 AU
3964296 km
3.34 km/s
2042-Nov-24 03:00 0.414014 AU
61935667 km
6.40 km/s
2052-Mar-19 01:24 0.422250 AU
63167736 km
6.54 km/s
2055-Aug-11 16:47 0.028346 AU
4240550 km
4.15 km/s
2058-Jun-05 01:50 0.393014 AU
58794041 km
14.80 km/s
2058-Nov-10 10:03 0.358201 AU
53586179 km
5.33 km/s
2071-Apr-11 21:50 0.323770 AU
48435307 km
4.76 km/s
2071-Sep-09 08:45 0.316319 AU
47320621 km
13.79 km/s
2077-Nov-29 20:07 0.415030 AU
62087615 km
6.80 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
24.99

Orbit Quality

RMS
0.53064
Condition
5
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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