395289

Orbital Period · P

1.47 yr

v(q)

37.7 km/s

v(Q)

18.3 km/s

Diameter · ≈

0.8 km

T_J

4.64

Eccentricity · e

0.3473

Orbit and dynamics

Between its closest point (0.842 AU) and its farthest (1.738 AU), the heliocentric distance changes by 0.896 AU over every revolution.

One full revolution takes 1.47 yr (535 days), computed from the semi-major axis of 1.29 AU.

An eccentricity of 0.347 makes the orbit moderately elongated.

A steep inclination of 49.9° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 37.7 km/s at perihelion and falls to 18.3 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 = 18.23 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.8 km.

Observation record and orbit quality

Astrometry from 468 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5145 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

1.29 AU

Eccentricity

0.3473

Perihelion

0.842 AU

Aphelion

1.738017 AU

Inclination

49.9°

Orbital Period

— yr

Epoch

2461200.5

Mean Anomaly

142.96°

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 distance	Velocity
2036-Apr-23 23:28	0.194651 AU 29119421 km	27.39 km/s
2041-Oct-23 23:27	0.196822 AU 29444180 km	28.91 km/s
2058-Apr-22 10:30	0.157879 AU 23618398 km	26.33 km/s
2060-Nov-01 12:04	0.162801 AU 24354612 km	25.46 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

18.23

Orbit Quality

RMS

0.51452

Condition

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.

Keep exploring

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

Apollo Collections Rankings Near-Earth Objects Guides