SpaceAtlas Space Object Data
NASA JPL SBDB · 2014 TW

2014 TW

2014 TW is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.029 AU once every 1.04 yr.

Amor Observations: 51
Orbital Period · P
1.04 yr
v(q)
29.6 km/s
v(Q)
29.1 km/s
Diameter · ≈
0.02 km
TJ
5.94
Eccentricity · e
0.0087

Orbit and dynamics

Between its closest point (1.02 AU) and its farthest (1.038 AU), the heliocentric distance changes by 0.018 AU over every revolution.

One full revolution takes 1.04 yr (381 days), computed from the semi-major axis of 1.029 AU.

With e = 0.009, the orbit is close to circular.

The orbital plane is tilted 9.01° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 29.6 km/s at perihelion and falls to 29.1 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 = 26.06 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 51 individual observations underpins this orbit; the fit leaves an RMS residual of 0.836 arcseconds.

Condition code U = 3 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
1.029 AU
Eccentricity
0.0087
Perihelion
1.02 AU
Aphelion
1.037952 AU
Inclination
9.01°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
237.62°

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
2037-Apr-07 12:39 0.307185 AU
45954237 km
10.40 km/s
2038-Apr-02 20:52 0.046070 AU
6892012 km
4.99 km/s
2038-Oct-02 01:27 0.034143 AU
5107741 km
4.74 km/s
2039-Mar-19 19:55 0.204092 AU
30531711 km
6.88 km/s
2039-Sep-15 00:35 0.255564 AU
38231836 km
8.71 km/s
2061-Apr-11 18:00 0.477302 AU
71403380 km
14.87 km/s
2062-Apr-07 16:16 0.222012 AU
33212563 km
8.26 km/s
2062-Oct-21 07:58 0.157494 AU
23560698 km
5.77 km/s
2063-Mar-31 10:38 0.036565 AU
5470103 km
4.70 km/s
2063-Sep-24 18:21 0.093945 AU
14053947 km
5.46 km/s
2064-Sep-05 02:01 0.351927 AU
52647543 km
10.99 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
26.06

Orbit Quality

RMS
0.83597
Condition
3
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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