SpaceAtlas Space Object Data
NASA JPL SBDB · 2015 DB156

2015 DB156

2015 DB156 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.923 AU and a period of 0.89 yr.

Aten Observations: 26
Orbital Period · P
0.89 yr
v(q)
41.8 km/s
v(Q)
23 km/s
Diameter · ≈
0.04 km
TJ
6.36
Eccentricity · e
0.2899

Orbit and dynamics

The path is an ellipse reaching 0.656 AU from the Sun at perihelion and 1.191 AU at aphelion, a radial span of 0.535 AU.

Applying Kepler's third law to a = 0.923 AU gives an orbital period of 0.89 yr, or about 324 days.

An eccentricity of 0.29 makes the orbit moderately elongated.

A steep inclination of 25.44° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 41.8 km/s at perihelion and falls to 23 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 = 24.87 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.04 km.

Observation record and orbit quality

The current orbit solution is based on 26 observations and has a weighted RMS residual of 0.7697 arcseconds.

Condition code U = 8 signals a poorly constrained orbit, so its future path should be treated as provisional.

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
0.9235 AU
Eccentricity
0.2899
Perihelion
0.656 AU
Aphelion
1.191223 AU
Inclination
25.44°
Orbital Period
— yr
Epoch
2457077.5
Mean Anomaly
119.93°

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
24.87

Orbit Quality

RMS
0.76971
Condition
8
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.

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