SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 XQ

2020 XQ

2020 XQ belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.932 AU it takes 2.69 yr to circle the Sun.

Apollo Observations: 51
Orbital Period · P
2.69 yr
v(q)
46.7 km/s
v(Q)
9.8 km/s
Diameter · ≈
0.18 km
TJ
3.58
Eccentricity · e
0.6522

Orbit and dynamics

Between its closest point (0.672 AU) and its farthest (3.192 AU), the heliocentric distance changes by 2.52 AU over every revolution.

One full revolution takes 2.69 yr (981 days), computed from the semi-major axis of 1.932 AU.

The high eccentricity (0.652) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 16.67° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 46.7 km/s at perihelion and falls to 9.8 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 = 21.45 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.18 km.

Observation record and orbit quality

Astrometry from 51 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5926 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
1.932 AU
Eccentricity
0.6522
Perihelion
0.672 AU
Aphelion
3.19205 AU
Inclination
16.67°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
44.7°

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
2028-Nov-29 06:23 0.260124 AU
38913956 km
28.89 km/s
2031-May-08 12:01 0.392983 AU
58789382 km
32.54 km/s
2039-May-24 17:59 0.068237 AU
10208184 km
22.94 km/s
2047-Jun-13 09:59 0.142346 AU
21294587 km
14.62 km/s
2071-Nov-12 12:11 0.014350 AU
2146765 km
19.29 km/s
2079-Nov-26 22:01 0.193304 AU
28917900 km
26.96 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
21.45

Orbit Quality

RMS
0.59257
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.

Keep exploring

Explore asteroids, comets and near-Earth objects with JPL orbital data.