SpaceAtlas Space Object Data
NASA JPL SBDB · 2015 EB7

2015 EB7

2015 EB7 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.958 AU and a period of 0.94 yr.

Aten Observations: 60
Orbital Period · P
0.94 yr
v(q)
51.3 km/s
v(Q)
18 km/s
Diameter · ≈
0.18 km
TJ
6.11
Eccentricity · e
0.48

Orbit and dynamics

The path is an ellipse reaching 0.498 AU from the Sun at perihelion and 1.418 AU at aphelion, a radial span of 0.92 AU.

Applying Kepler's third law to a = 0.958 AU gives an orbital period of 0.94 yr, or about 342 days.

The high eccentricity (0.48) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 26.71° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 51.3 km/s at perihelion and falls to 18 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 = 21.5 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.18 km.

Observation record and orbit quality

The current orbit solution is based on 60 observations and has a weighted RMS residual of 0.5593 arcseconds.

Condition code U = 3 indicates a moderately constrained orbit; predictions decades ahead still carry noticeable uncertainty.

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
0.9578 AU
Eccentricity
0.48
Perihelion
0.498 AU
Aphelion
1.417544 AU
Inclination
26.71°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
133.08°

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
21.5

Orbit Quality

RMS
0.55931
Condition
3
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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