SpaceAtlas Space Object Data
NASA JPL SBDB · 2013 TG135

2013 TG135

2013 TG135 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.706 AU and a period of 0.59 yr.

Aten Observations: 29
Orbital Period · P
0.59 yr
v(q)
61.2 km/s
v(Q)
20.5 km/s
Diameter · ≈
0.03 km
TJ
8
Eccentricity · e
0.4972

Orbit and dynamics

The path is an ellipse reaching 0.355 AU from the Sun at perihelion and 1.057 AU at aphelion, a radial span of 0.702 AU.

Applying Kepler's third law to a = 0.706 AU gives an orbital period of 0.59 yr, or about 217 days.

The high eccentricity (0.497) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 9.53° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 61.2 km/s at perihelion and falls to 20.5 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 = 25.2 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.03 km.

Observation record and orbit quality

The current orbit solution is based on 29 observations and has a weighted RMS residual of 0.4511 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
0.7062 AU
Eccentricity
0.4972
Perihelion
0.355 AU
Aphelion
1.057323 AU
Inclination
9.53°
Orbital Period
— yr
Epoch
2456578.5
Mean Anomaly
216.45°

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
2035-Oct-20 20:02 0.052508 AU
7855159 km
15.53 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
25.2

Orbit Quality

RMS
0.45113
Condition
8
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.

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