SpaceAtlas Space Object Data
NASA JPL SBDB · 2014 WM368

2014 WM368

2014 WM368 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.192 AU once every 1.30 yr.

Amor Observations: 39
Orbital Period · P
1.30 yr
v(q)
29.6 km/s
v(Q)
25.1 km/s
Diameter · ≈
0.06 km
TJ
5.3
Eccentricity · e
0.0816

Orbit and dynamics

The path is an ellipse reaching 1.095 AU from the Sun at perihelion and 1.289 AU at aphelion, a radial span of 0.194 AU.

Applying Kepler's third law to a = 1.192 AU gives an orbital period of 1.30 yr, or about 475 days.

With e = 0.082, the orbit is close to circular.

The orbital plane is tilted 10.82° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 29.6 km/s at perihelion and falls to 25.1 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 = 23.74 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.06 km.

Observation record and orbit quality

The current orbit solution is based on 39 observations and has a weighted RMS residual of 0.5781 arcseconds.

Condition code U = 2 means the orbit is very well determined, leaving only a small uncertainty in the future ephemeris.

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
1.192 AU
Eccentricity
0.0816
Perihelion
1.095 AU
Aphelion
1.289267 AU
Inclination
10.82°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
213.39°

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-Dec-02 04:14 0.252058 AU
37707391 km
6.11 km/s
2032-May-22 18:26 0.171285 AU
25623883 km
5.65 km/s
2036-Aug-11 09:23 0.325662 AU
48718290 km
5.12 km/s
2040-Nov-20 04:14 0.282436 AU
42251825 km
5.95 km/s
2045-Feb-12 21:16 0.221351 AU
33113566 km
4.77 km/s
2045-May-11 03:35 0.196426 AU
29384921 km
5.60 km/s
2049-Jul-28 21:45 0.300465 AU
44948910 km
5.48 km/s
2053-Nov-08 01:24 0.310091 AU
46388915 km
5.68 km/s
2058-Jan-24 16:27 0.190074 AU
28434643 km
5.65 km/s
2062-Jul-16 01:25 0.269532 AU
40321482 km
5.71 km/s
2066-Oct-25 15:30 0.332944 AU
49807667 km
5.27 km/s
2071-Jan-12 13:49 0.173804 AU
26000726 km
5.83 km/s
2075-Jul-04 02:08 0.234927 AU
35144515 km
5.82 km/s
2079-Oct-10 23:39 0.348925 AU
52198474 km
4.82 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
23.74

Orbit Quality

RMS
0.57812
Condition
2
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.

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