SpaceAtlas Space Object Data
NASA JPL SBDB · 2015 EC7

2015 EC7

2015 EC7 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.361 AU it takes 1.59 yr to circle the Sun.

Apollo Observations: 43
Orbital Period · P
1.59 yr
v(q)
62 km/s
v(Q)
10.5 km/s
Diameter · ≈
0.12 km
TJ
4.53
Eccentricity · e
0.7101

Orbit and dynamics

Between its closest point (0.395 AU) and its farthest (2.327 AU), the heliocentric distance changes by 1.932 AU over every revolution.

One full revolution takes 1.59 yr (580 days), computed from the semi-major axis of 1.361 AU.

The high eccentricity (0.71) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 11.22° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 62 km/s at perihelion and falls to 10.5 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 = 22.44 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.12 km.

Observation record and orbit quality

Astrometry from 43 individual observations underpins this orbit; the fit leaves an RMS residual of 0.483 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
1.361 AU
Eccentricity
0.7101
Perihelion
0.395 AU
Aphelion
2.327446 AU
Inclination
11.22°
Orbital Period
— yr
Epoch
2457098.5
Mean Anomaly
36.55°

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
22.44

Orbit Quality

RMS
0.48302
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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