SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 WR48

2016 WR48

2016 WR48 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 2.678 AU once every 4.38 yr.

Amor Observations: 72
Orbital Period · P
4.38 yr
v(q)
33 km/s
v(Q)
10 km/s
Diameter · ≈
0.21 km
TJ
3.13
Eccentricity · e
0.5345

Orbit and dynamics

Between its closest point (1.247 AU) and its farthest (4.109 AU), the heliocentric distance changes by 2.862 AU over every revolution.

One full revolution takes 4.38 yr (1,601 days), computed from the semi-major axis of 2.678 AU.

The high eccentricity (0.534) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 11.34° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 33 km/s at perihelion and falls to 10 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 = 21.1 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.21 km.

Observation record and orbit quality

Astrometry from 72 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4664 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
2.678 AU
Eccentricity
0.5345
Perihelion
1.247 AU
Aphelion
4.109391 AU
Inclination
11.34°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
50.98°

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
21.1

Orbit Quality

RMS
0.46643
Condition
6
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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