SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 FW14

2016 FW14

2016 FW14 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.484 AU it takes 1.81 yr to circle the Sun.

Apollo Observations: 69
Orbital Period · P
1.81 yr
v(q)
39.2 km/s
v(Q)
15.3 km/s
Diameter · ≈
0.26 km
TJ
4.45
Eccentricity · e
0.4394

Orbit and dynamics

The path is an ellipse reaching 0.832 AU from the Sun at perihelion and 2.136 AU at aphelion, a radial span of 1.304 AU.

Applying Kepler's third law to a = 1.484 AU gives an orbital period of 1.81 yr, or about 660 days.

The high eccentricity (0.439) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 12.08° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 39.2 km/s at perihelion and falls to 15.3 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

The measured diameter is 0.37 km, a value from direct size determination rather than from brightness alone.

Its geometric albedo of 0.063 indicates a very dark, carbonaceous-type surface.

Observation record and orbit quality

The current orbit solution is based on 69 observations and has a weighted RMS residual of 0.6716 arcseconds.

Condition code U = 0 means the orbit is very well determined, leaving only a small uncertainty in the future ephemeris.

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
1.484 AU
Eccentricity
0.4394
Perihelion
0.832 AU
Aphelion
2.13607 AU
Inclination
12.08°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
164.49°

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
2034-Oct-07 21:48 0.198949 AU
29762278 km
17.11 km/s
2063-Aug-05 08:54 0.199077 AU
29781531 km
11.74 km/s
2072-Sep-13 05:48 0.110110 AU
16472190 km
11.91 km/s

Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.

Physical Parameters

Diameter
0.366 km
Albedo
0.063
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
20.71

Orbit Quality

RMS
0.67165
Condition
0
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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