SpaceAtlas Space Object Data
NASA JPL SBDB · 2013 DU

2013 DU

2013 DU belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.753 AU it takes 2.32 yr to circle the Sun.

Apollo Observations: 156
Orbital Period · P
2.32 yr
v(q)
35.5 km/s
v(Q)
14.3 km/s
Diameter · ≈
0.06 km
TJ
4.01
Eccentricity · e
0.427

Orbit and dynamics

Between its closest point (1.005 AU) and its farthest (2.502 AU), the heliocentric distance changes by 1.497 AU over every revolution.

One full revolution takes 2.32 yr (848 days), computed from the semi-major axis of 1.753 AU.

The high eccentricity (0.427) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 5.12° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 35.5 km/s at perihelion and falls to 14.3 km/s at aphelion.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 23.89 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.06 km.

Observation record and orbit quality

Astrometry from 156 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4319 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
1.753 AU
Eccentricity
0.427
Perihelion
1.005 AU
Aphelion
2.501531 AU
Inclination
5.12°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
266.12°

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 distanceVelocity
2026-Dec-23 16:26 0.221370 AU
33116459 km
12.12 km/s
2033-Dec-08 09:18 0.453137 AU
67788358 km
19.23 km/s
2064-Mar-29 13:13 0.466173 AU
69738557 km
19.63 km/s
2071-Mar-13 08:46 0.214934 AU
32153737 km
12.02 km/s
2078-Feb-06 19:26 0.022133 AU
3311065 km
6.13 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
23.89

Orbit Quality

RMS
0.43192
Condition
0
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.