SpaceAtlas Space Object Data
NASA JPL SBDB · 612970

612970

612970 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.855 AU and a period of 0.79 yr.

Aten Observations: 245
Orbital Period · P
0.79 yr
v(q)
45.7 km/s
v(Q)
22.7 km/s
Diameter · ≈
0.21 km
TJ
6.84
Eccentricity · e
0.3356

Orbit and dynamics

The path is an ellipse reaching 0.568 AU from the Sun at perihelion and 1.142 AU at aphelion, a radial span of 0.574 AU.

Applying Kepler's third law to a = 0.855 AU gives an orbital period of 0.79 yr, or about 289 days.

An eccentricity of 0.336 makes the orbit moderately elongated.

The orbital plane is tilted 7.9° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 45.7 km/s at perihelion and falls to 22.7 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 = 21.15 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.21 km.

Observation record and orbit quality

The current orbit solution is based on 245 observations and has a weighted RMS residual of 0.4695 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
0.8554 AU
Eccentricity
0.3356
Perihelion
0.568 AU
Aphelion
1.142472 AU
Inclination
7.9°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
17.34°

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
21.15

Orbit Quality

RMS
0.46949
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.

Keep exploring

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