SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 FU

2017 FU

2017 FU belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.29 AU it takes 3.47 yr to circle the Sun.

Apollo Observations: 45
Orbital Period · P
3.47 yr
v(q)
37 km/s
v(Q)
10.5 km/s
Diameter · ≈
0.03 km
TJ
3.37
Eccentricity · e
0.5589

Orbit and dynamics

The path is an ellipse reaching 1.01 AU from the Sun at perihelion and 3.57 AU at aphelion, a radial span of 2.56 AU.

Applying Kepler's third law to a = 2.29 AU gives an orbital period of 3.47 yr, or about 1,266 days.

The high eccentricity (0.559) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 6.2° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 37 km/s at perihelion and falls to 10.5 km/s at aphelion.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 25.7 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.03 km.

Observation record and orbit quality

The current orbit solution is based on 45 observations and has a weighted RMS residual of 0.6132 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
2.29 AU
Eccentricity
0.5589
Perihelion
1.01 AU
Aphelion
3.569881 AU
Inclination
6.2°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
246.93°

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

No close approaches to Earth are currently on record for this object.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
25.7

Orbit Quality

RMS
0.61317
Condition
7
Orbit ID
—
Data source: NASA JPL Small-Body Database . 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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