SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 TL10

2020 TL10

2020 TL10 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.732 AU it takes 2.28 yr to circle the Sun.

Apollo Observations: 91
Orbital Period · P
2.28 yr
v(q)
37.6 km/s
v(Q)
13.6 km/s
Diameter · ≈
0.11 km
TJ
3.98
Eccentricity · e
0.4672

Orbit and dynamics

The path is an ellipse reaching 0.923 AU from the Sun at perihelion and 2.541 AU at aphelion, a radial span of 1.618 AU.

Applying Kepler's third law to a = 1.732 AU gives an orbital period of 2.28 yr, or about 833 days.

The high eccentricity (0.467) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 17.52° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 37.6 km/s at perihelion and falls to 13.6 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 = 22.6 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.11 km.

Observation record and orbit quality

The current orbit solution is based on 91 observations and has a weighted RMS residual of 0.4731 arcseconds.

Condition code U = 5 indicates a moderately constrained orbit; predictions decades ahead still carry noticeable uncertainty.

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
1.732 AU
Eccentricity
0.4672
Perihelion
0.923 AU
Aphelion
2.54119 AU
Inclination
17.52°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
134.12°

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
2036-Nov-16 23:28 0.179029 AU
26782317 km
17.43 km/s
2046-Mar-27 14:37 0.362375 AU
54210486 km
17.81 km/s
2052-Nov-04 20:37 0.413951 AU
61926212 km
24.10 km/s
2062-Mar-15 16:22 0.287709 AU
43040645 km
10.69 km/s
2077-Dec-01 13:22 0.090864 AU
13592988 km
11.64 km/s
2078-Mar-21 07:43 0.363192 AU
54332756 km
7.20 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
22.6

Orbit Quality

RMS
0.47307
Condition
5
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

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