SpaceAtlas Space Object Data
NASA JPL SBDB · 162361

162361

162361 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.875 AU and a period of 0.82 yr.

Aten Observations: 510
Orbital Period · P
0.82 yr
v(q)
49.3 km/s
v(Q)
20.6 km/s
Diameter · ≈
0.32 km
TJ
6.7
Eccentricity · e
0.4109

Orbit and dynamics

Between its closest point (0.515 AU) and its farthest (1.234 AU), the heliocentric distance changes by 0.719 AU over every revolution.

One full revolution takes 0.82 yr (299 days), computed from the semi-major axis of 0.875 AU.

The high eccentricity (0.411) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

Its inclination of 2.71° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 49.3 km/s at perihelion and falls to 20.6 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 = 20.24 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.32 km.

Observation record and orbit quality

Astrometry from 510 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3589 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
0.8749 AU
Eccentricity
0.4109
Perihelion
0.515 AU
Aphelion
1.234396 AU
Inclination
2.71°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
190.56°

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
20.24

Orbit Quality

RMS
0.35889
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.