SpaceAtlas Space Object Data
NASA JPL SBDB · 2014 FN38

2014 FN38

2014 FN38 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.823 AU and a period of 0.75 yr.

Aten Observations: 38
Orbital Period · P
0.75 yr
v(q)
45.4 km/s
v(Q)
23.8 km/s
Diameter · ≈
0.02 km
TJ
7.07
Eccentricity · e
0.3122

Orbit and dynamics

Between its closest point (0.566 AU) and its farthest (1.08 AU), the heliocentric distance changes by 0.514 AU over every revolution.

One full revolution takes 0.75 yr (273 days), computed from the semi-major axis of 0.823 AU.

An eccentricity of 0.312 makes the orbit moderately elongated.

The orbital plane is tilted 6.6° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 45.4 km/s at perihelion and falls to 23.8 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 = 26.8 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 38 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5159 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
0.823 AU
Eccentricity
0.3122
Perihelion
0.566 AU
Aphelion
1.079941 AU
Inclination
6.6°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
248.53°

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
2029-May-29 15:38 0.097725 AU
14619418 km
9.63 km/s
2032-May-29 01:07 0.127402 AU
19059050 km
12.26 km/s
2035-May-27 14:57 0.189836 AU
28399023 km
15.10 km/s
2038-May-24 09:56 0.268191 AU
40120730 km
17.91 km/s
2041-May-21 00:05 0.351872 AU
52639265 km
20.61 km/s
2043-Nov-02 13:42 0.425669 AU
63679114 km
15.78 km/s
2046-Oct-23 21:06 0.429174 AU
64203449 km
15.85 km/s
2049-Apr-03 00:18 0.418174 AU
62557999 km
23.09 km/s
2049-Oct-14 04:10 0.423650 AU
63377165 km
15.63 km/s
2052-Mar-30 02:19 0.317409 AU
47483644 km
20.32 km/s
2055-Mar-27 11:20 0.218368 AU
32667439 km
17.56 km/s
2058-Mar-24 04:55 0.097511 AU
14587489 km
14.86 km/s
2061-Mar-21 16:49 0.019707 AU
2948091 km
12.11 km/s
2064-Mar-20 17:30 0.016128 AU
2412771 km
9.65 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
26.8

Orbit Quality

RMS
0.51585
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.

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