SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 FB4

2016 FB4

2016 FB4 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.152 AU it takes 1.24 yr to circle the Sun.

Apollo Observations: 39
Orbital Period · P
1.24 yr
v(q)
40.3 km/s
v(Q)
19.1 km/s
Diameter · ≈
0.14 km
TJ
5.26
Eccentricity · e
0.3557

Orbit and dynamics

Between its closest point (0.742 AU) and its farthest (1.562 AU), the heliocentric distance changes by 0.82 AU over every revolution.

One full revolution takes 1.24 yr (452 days), computed from the semi-major axis of 1.152 AU.

An eccentricity of 0.356 makes the orbit moderately elongated.

A steep inclination of 32.95° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 40.3 km/s at perihelion and falls to 19.1 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 = 22 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.14 km.

Observation record and orbit quality

Astrometry from 39 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4962 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
1.152 AU
Eccentricity
0.3557
Perihelion
0.742 AU
Aphelion
1.561766 AU
Inclination
32.95°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
0.72°

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
22.0

Orbit Quality

RMS
0.49624
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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