SpaceAtlas Space Object Data
NASA JPL SBDB · 513170

513170

513170 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.961 AU and a period of 0.94 yr.

Aten Observations: 109
Orbital Period · P
0.94 yr
v(q)
36.1 km/s
v(Q)
25.6 km/s
Diameter · ≈
0.33 km
TJ
6.11
Eccentricity · e
0.1701

Orbit and dynamics

Between its closest point (0.798 AU) and its farthest (1.125 AU), the heliocentric distance changes by 0.327 AU over every revolution.

One full revolution takes 0.94 yr (344 days), computed from the semi-major axis of 0.961 AU.

An eccentricity of 0.17 makes the orbit moderately elongated.

A steep inclination of 35.07° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 36.1 km/s at perihelion and falls to 25.6 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 = 20.18 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.33 km.

Observation record and orbit quality

Astrometry from 109 individual observations underpins this orbit; the fit leaves an RMS residual of 0.7482 arcseconds.

Condition code U = 0 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
0.9611 AU
Eccentricity
0.1701
Perihelion
0.798 AU
Aphelion
1.124583 AU
Inclination
35.07°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
327.09°

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
20.18

Orbit Quality

RMS
0.74817
Condition
0
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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