SpaceAtlas Space Object Data
NASA JPL SBDB · 2011 CE66

2011 CE66

2011 CE66 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.294 AU once every 1.47 yr.

Amor Observations: 13
Orbital Period · P
1.47 yr
v(q)
31.4 km/s
v(Q)
21.9 km/s
Diameter · ≈
0.03 km
TJ
4.99
Eccentricity · e
0.1789

Orbit and dynamics

Between its closest point (1.062 AU) and its farthest (1.525 AU), the heliocentric distance changes by 0.463 AU over every revolution.

One full revolution takes 1.47 yr (538 days), computed from the semi-major axis of 1.294 AU.

An eccentricity of 0.179 makes the orbit moderately elongated.

The orbital plane is tilted 9.61° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 31.4 km/s at perihelion and falls to 21.9 km/s at aphelion.

Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 25.6 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.03 km.

Observation record and orbit quality

Astrometry from 13 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3201 arcseconds.

Condition code U = 9 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
1.294 AU
Eccentricity
0.1789
Perihelion
1.062 AU
Aphelion
1.525497 AU
Inclination
9.61°
Orbital Period
— yr
Epoch
2455605.5
Mean Anomaly
340.65°

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
25.6

Orbit Quality

RMS
0.3201
Condition
9
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.

Keep exploring

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