SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 WA58

2016 WA58

2016 WA58 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.926 AU and a period of 0.89 yr.

Aten Observations: 15
Orbital Period · P
0.89 yr
v(q)
39.3 km/s
v(Q)
24.4 km/s
TJ
6.42
Eccentricity · e
0.2342

Orbit and dynamics

Between its closest point (0.709 AU) and its farthest (1.142 AU), the heliocentric distance changes by 0.433 AU over every revolution.

One full revolution takes 0.89 yr (325 days), computed from the semi-major axis of 0.926 AU.

An eccentricity of 0.234 makes the orbit moderately elongated.

The orbital plane is tilted 12.94° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 39.3 km/s at perihelion and falls to 24.4 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

Neither a measured diameter nor a reliable absolute magnitude is available for 2016 WA58, so its physical size remains unconstrained.

Observation record and orbit quality

Astrometry from 15 individual observations underpins this orbit; the fit leaves an RMS residual of 0.67 arcseconds.

Condition code U = 8 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
0.9256 AU
Eccentricity
0.2342
Perihelion
0.709 AU
Aphelion
1.142376 AU
Inclination
12.94°
Orbital Period
— yr
Epoch
2460600.5
Mean Anomaly
45.94°

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
30.03

Orbit Quality

RMS
0.67
Condition
8
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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