SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 XA2

2020 XA2

2020 XA2 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.186 AU it takes 1.29 yr to circle the Sun.

Apollo Observations: 22
Orbital Period · P
1.29 yr
v(q)
34.3 km/s
v(Q)
21.8 km/s
Diameter · ≈
0.04 km
TJ
5.31
Eccentricity · e
0.2217

Orbit and dynamics

Between its closest point (0.923 AU) and its farthest (1.449 AU), the heliocentric distance changes by 0.526 AU over every revolution.

One full revolution takes 1.29 yr (472 days), computed from the semi-major axis of 1.186 AU.

An eccentricity of 0.222 makes the orbit moderately elongated.

The orbital plane is tilted 7.14° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 34.3 km/s at perihelion and falls to 21.8 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 = 24.99 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.04 km.

Observation record and orbit quality

Astrometry from 22 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6674 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
1.186 AU
Eccentricity
0.2217
Perihelion
0.923 AU
Aphelion
1.448936 AU
Inclination
7.14°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
57.61°

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
2030-Apr-06 21:19 0.108010 AU
16158045 km
8.56 km/s
2033-Nov-10 02:14 0.239307 AU
35799756 km
17.79 km/s
2056-Jul-12 10:45 0.425347 AU
63630979 km
7.64 km/s
2060-Sep-24 07:45 0.347863 AU
52039570 km
5.81 km/s
2061-Apr-11 09:55 0.198916 AU
29757347 km
11.29 km/s
2064-Nov-14 04:15 0.316034 AU
47277940 km
15.40 km/s
2065-Jun-17 07:28 0.374190 AU
55978067 km
7.02 km/s
2069-Aug-24 14:59 0.422179 AU
63157014 km
7.14 km/s
2070-Apr-25 02:43 0.410156 AU
61358465 km
19.56 km/s
2078-Aug-05 12:38 0.445096 AU
66585374 km
7.57 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
0.66742
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.

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