SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 XM1

2020 XM1

2020 XM1 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.824 AU and a period of 0.75 yr.

Aten Observations: 59
Orbital Period · P
0.75 yr
v(q)
46.3 km/s
v(Q)
23.3 km/s
Diameter · ≈
0.18 km
TJ
6.94
Eccentricity · e
0.3306

Orbit and dynamics

Between its closest point (0.551 AU) and its farthest (1.096 AU), the heliocentric distance changes by 0.545 AU over every revolution.

One full revolution takes 0.75 yr (273 days), computed from the semi-major axis of 0.824 AU.

An eccentricity of 0.331 makes the orbit moderately elongated.

A steep inclination of 34.4° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 46.3 km/s at perihelion and falls to 23.3 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

No direct size measurement is available; from an absolute magnitude of H = 21.52 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.18 km.

Observation record and orbit quality

Astrometry from 59 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6483 arcseconds.

Condition code U = 1 means the orbit is very well determined, leaving only a small uncertainty in the future ephemeris.

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
0.8235 AU
Eccentricity
0.3306
Perihelion
0.551 AU
Aphelion
1.095749 AU
Inclination
34.4°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
280.02°

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

No close approaches to Earth are currently on record for this object.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
21.52

Orbit Quality

RMS
0.64835
Condition
1
Orbit ID
—
Data source: NASA JPL Small-Body Database . 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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