SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 XS5

2020 XS5

2020 XS5 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.22 AU it takes 1.35 yr to circle the Sun.

Apollo Observations: 38
Orbital Period · P
1.35 yr
v(q)
36.6 km/s
v(Q)
19.9 km/s
Diameter · ≈
0.02 km
TJ
5.13
Eccentricity · e
0.2951

Orbit and dynamics

Between its closest point (0.86 AU) and its farthest (1.58 AU), the heliocentric distance changes by 0.72 AU over every revolution.

One full revolution takes 1.35 yr (492 days), computed from the semi-major axis of 1.22 AU.

An eccentricity of 0.295 makes the orbit moderately elongated.

A steep inclination of 21.39° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 36.6 km/s at perihelion and falls to 19.9 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 = 26.7 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 38 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3817 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
1.22 AU
Eccentricity
0.2951
Perihelion
0.86 AU
Aphelion
1.580022 AU
Inclination
21.39°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
344.15°

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
2029-May-28 09:30 0.171924 AU
25719398 km
14.08 km/s
2033-Jun-02 11:45 0.217013 AU
32464654 km
19.72 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
26.7

Orbit Quality

RMS
0.38167
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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