SpaceAtlas Space Object Data
NASA JPL SBDB · 2013 VT79

2013 VT79

2013 VT79 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 2.128 AU once every 3.10 yr.

Amor Observations: 31
Orbital Period · P
3.10 yr
v(q)
31.1 km/s
v(Q)
13.4 km/s
Diameter · ≈
0.13 km
TJ
3.62
Eccentricity · e
0.3977

Orbit and dynamics

The path is an ellipse reaching 1.282 AU from the Sun at perihelion and 2.974 AU at aphelion, a radial span of 1.692 AU.

Applying Kepler's third law to a = 2.128 AU gives an orbital period of 3.10 yr, or about 1,134 days.

An eccentricity of 0.398 makes the orbit moderately elongated.

Its inclination of 1.54° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 31.1 km/s at perihelion and falls to 13.4 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 = 22.23 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.13 km.

Observation record and orbit quality

The current orbit solution is based on 31 observations and has a weighted RMS residual of 0.6615 arcseconds.

Condition code U = 1 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
2.128 AU
Eccentricity
0.3977
Perihelion
1.282 AU
Aphelion
2.974306 AU
Inclination
1.54°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
27.99°

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
22.23

Orbit Quality

RMS
0.66154
Condition
1
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.