SpaceAtlas Space Object Data
NASA JPL SBDB · 2021 TY10

2021 TY10

2021 TY10 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.709 AU once every 2.23 yr.

Amor Observations: 9
Orbital Period · P
2.23 yr
v(q)
32.4 km/s
v(Q)
16 km/s
Diameter · ≈
0.16 km
TJ
4.06
Eccentricity · e
0.3372

Orbit and dynamics

The path is an ellipse reaching 1.132 AU from the Sun at perihelion and 2.285 AU at aphelion, a radial span of 1.153 AU.

Applying Kepler's third law to a = 1.709 AU gives an orbital period of 2.23 yr, or about 816 days.

An eccentricity of 0.337 makes the orbit moderately elongated.

The orbital plane is tilted 19.44° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 32.4 km/s at perihelion and falls to 16 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 = 21.69 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.16 km.

Observation record and orbit quality

The current orbit solution is based on 9 observations and has a weighted RMS residual of 0.3235 arcseconds.

Condition code U = 9 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
1.709 AU
Eccentricity
0.3372
Perihelion
1.132 AU
Aphelion
2.285275 AU
Inclination
19.44°
Orbital Period
— yr
Epoch
2459493.5
Mean Anomaly
17.66°

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
21.69

Orbit Quality

RMS
0.32352
Condition
9
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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