SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 XK1

2020 XK1

2020 XK1 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.633 AU it takes 2.09 yr to circle the Sun.

Apollo Observations: 25
Orbital Period · P
2.09 yr
v(q)
35.5 km/s
v(Q)
15.3 km/s
TJ
4.21
Eccentricity · e
0.3988

Orbit and dynamics

Between its closest point (0.982 AU) and its farthest (2.284 AU), the heliocentric distance changes by 1.302 AU over every revolution.

One full revolution takes 2.09 yr (762 days), computed from the semi-major axis of 1.633 AU.

An eccentricity of 0.399 makes the orbit moderately elongated.

Its inclination of 3.39° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 35.5 km/s at perihelion and falls to 15.3 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

Neither a measured diameter nor a reliable absolute magnitude is available for 2020 XK1, so its physical size remains unconstrained.

Observation record and orbit quality

Astrometry from 25 individual observations underpins this orbit; the fit leaves an RMS residual of 0.615 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
1.633 AU
Eccentricity
0.3988
Perihelion
0.982 AU
Aphelion
2.28424 AU
Inclination
3.39°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
232.49°

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
2043-Oct-14 12:00 0.155817 AU
23309884 km
11.47 km/s
2046-Jan-14 11:11 0.203081 AU
30380469 km
13.17 km/s
2066-Sep-26 12:08 0.425078 AU
63590698 km
19.78 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
30.6

Orbit Quality

RMS
0.61503
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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