SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 CK137

2016 CK137

2016 CK137 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.174 AU it takes 1.27 yr to circle the Sun.

Apollo Observations: 30
Orbital Period · P
1.27 yr
v(q)
39.5 km/s
v(Q)
19.2 km/s
Diameter · ≈
0.01 km
TJ
5.32
Eccentricity · e
0.3464

Orbit and dynamics

Between its closest point (0.767 AU) and its farthest (1.581 AU), the heliocentric distance changes by 0.814 AU over every revolution.

One full revolution takes 1.27 yr (465 days), computed from the semi-major axis of 1.174 AU.

An eccentricity of 0.346 makes the orbit moderately elongated.

Its inclination of 0.79° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 39.5 km/s at perihelion and falls to 19.2 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 = 27.3 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

Astrometry from 30 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5998 arcseconds.

Condition code U = 7 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
1.174 AU
Eccentricity
0.3464
Perihelion
0.767 AU
Aphelion
1.580674 AU
Inclination
0.79°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
95.42°

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
2033-Jul-24 01:03 0.313001 AU
46824290 km
22.94 km/s
2035-Feb-22 05:17 0.273346 AU
40892004 km
21.97 km/s
2043-Jun-24 14:30 0.435505 AU
65150560 km
8.38 km/s
2043-Dec-10 13:48 0.183885 AU
27508861 km
8.38 km/s
2049-Feb-15 19:29 0.092375 AU
13819051 km
18.28 km/s
2063-Feb-08 07:39 0.068656 AU
10270846 km
13.27 km/s
2066-Aug-04 03:10 0.188117 AU
28141976 km
16.50 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
27.3

Orbit Quality

RMS
0.59982
Condition
7
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

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