SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 FX2

2017 FX2

2017 FX2 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.389 AU once every 1.64 yr.

Amor Observations: 67
Orbital Period · P
1.64 yr
v(q)
32.1 km/s
v(Q)
19.9 km/s
Diameter · ≈
0.02 km
TJ
4.75
Eccentricity · e
0.2342

Orbit and dynamics

Between its closest point (1.064 AU) and its farthest (1.714 AU), the heliocentric distance changes by 0.65 AU over every revolution.

One full revolution takes 1.64 yr (598 days), computed from the semi-major axis of 1.389 AU.

An eccentricity of 0.234 makes the orbit moderately elongated.

Its inclination of 1.81° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 32.1 km/s at perihelion and falls to 19.9 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 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 67 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6347 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
1.389 AU
Eccentricity
0.2342
Perihelion
1.064 AU
Aphelion
1.714304 AU
Inclination
1.81°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
213.85°

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-Dec-31 04:24 0.456079 AU
68228517 km
6.32 km/s
2035-Apr-24 23:43 0.065534 AU
9803718 km
3.63 km/s
2040-Mar-14 22:26 0.402916 AU
60275311 km
14.30 km/s
2040-Jul-13 10:37 0.362758 AU
54267887 km
4.25 km/s
2053-May-13 17:11 0.237285 AU
35497365 km
9.84 km/s
2058-Mar-26 08:01 0.183083 AU
27388804 km
8.07 km/s
2071-Jan-13 05:26 0.391836 AU
58617770 km
5.13 km/s
2071-May-27 10:18 0.457589 AU
68454341 km
15.92 km/s
2076-Apr-10 13:34 0.056829 AU
8501564 km
2.81 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
26.0

Orbit Quality

RMS
0.63474
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.

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