SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 XF

2016 XF

2016 XF belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.058 AU it takes 1.09 yr to circle the Sun.

Apollo Observations: 33
Orbital Period · P
1.09 yr
v(q)
36.3 km/s
v(Q)
23.1 km/s
Diameter · ≈
0.03 km
TJ
5.76
Eccentricity · e
0.2219

Orbit and dynamics

The path is an ellipse reaching 0.823 AU from the Sun at perihelion and 1.293 AU at aphelion, a radial span of 0.47 AU.

Applying Kepler's third law to a = 1.058 AU gives an orbital period of 1.09 yr, or about 397 days.

An eccentricity of 0.222 makes the orbit moderately elongated.

The orbital plane is tilted 15.89° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 36.3 km/s at perihelion and falls to 23.1 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 = 25.3 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 33 observations and has a weighted RMS residual of 0.512 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
1.058 AU
Eccentricity
0.2219
Perihelion
0.823 AU
Aphelion
1.29277 AU
Inclination
15.89°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
186.13°

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
2028-Dec-09 13:42 0.077412 AU
11580739 km
12.93 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
25.3

Orbit Quality

RMS
0.51203
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.

Keep exploring

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