SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 YM2

2020 YM2

2020 YM2 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.294 AU once every 1.47 yr.

Amor Observations: 28
Orbital Period · P
1.47 yr
v(q)
31.1 km/s
v(Q)
22 km/s
Diameter · ≈
0.05 km
TJ
4.88
Eccentricity · e
0.1713

Orbit and dynamics

The path is an ellipse reaching 1.072 AU from the Sun at perihelion and 1.516 AU at aphelion, a radial span of 0.444 AU.

Applying Kepler's third law to a = 1.294 AU gives an orbital period of 1.47 yr, or about 538 days.

An eccentricity of 0.171 makes the orbit moderately elongated.

A steep inclination of 29.14° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 31.1 km/s at perihelion and falls to 22 km/s at aphelion.

Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 24.3 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.05 km.

Observation record and orbit quality

The current orbit solution is based on 28 observations and has a weighted RMS residual of 0.4296 arcseconds.

Condition code U = 8 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
1.294 AU
Eccentricity
0.1713
Perihelion
1.072 AU
Aphelion
1.515662 AU
Inclination
29.14°
Orbital Period
— yr
Epoch
2459204.5
Mean Anomaly
354.99°

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
24.3

Orbit Quality

RMS
0.42964
Condition
8
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.

Keep exploring

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