SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 CE

2016 CE

2016 CE is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.85 AU and a period of 0.78 yr.

Aten Observations: 57
Orbital Period · P
0.78 yr
v(q)
43.3 km/s
v(Q)
24.1 km/s
Diameter · ≈
0.01 km
TJ
6.89
Eccentricity · e
0.2855

Orbit and dynamics

The path is an ellipse reaching 0.608 AU from the Sun at perihelion and 1.093 AU at aphelion, a radial span of 0.485 AU.

Applying Kepler's third law to a = 0.85 AU gives an orbital period of 0.78 yr, or about 286 days.

An eccentricity of 0.285 makes the orbit moderately elongated.

The orbital plane is tilted 5.77° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 43.3 km/s at perihelion and falls to 24.1 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 = 28.5 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

The current orbit solution is based on 57 observations and has a weighted RMS residual of 0.5201 arcseconds.

Condition code U = 6 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
0.8504 AU
Eccentricity
0.2855
Perihelion
0.608 AU
Aphelion
1.093189 AU
Inclination
5.77°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
316.73°

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
2027-Feb-04 21:29 0.113000 AU
16904626 km
12.10 km/s
2033-Dec-29 00:07 0.125622 AU
18792779 km
6.54 km/s
2040-Nov-11 11:42 0.144969 AU
21687064 km
12.01 km/s
2045-Jan-26 04:49 0.055156 AU
8251225 km
6.60 km/s
2051-Nov-11 04:11 0.100566 AU
15044463 km
8.75 km/s
2056-Feb-05 11:46 0.000388 AU
58093 km
8.47 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
28.5

Orbit Quality

RMS
0.52011
Condition
6
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.