SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 DW

2019 DW

2019 DW is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.937 AU and a period of 0.91 yr.

Aten Observations: 43
Orbital Period · P
0.91 yr
v(q)
36.4 km/s
v(Q)
26 km/s
Diameter · ≈
0.01 km
TJ
6.38
Eccentricity · e
0.1662

Orbit and dynamics

Between its closest point (0.781 AU) and its farthest (1.093 AU), the heliocentric distance changes by 0.312 AU over every revolution.

One full revolution takes 0.91 yr (331 days), computed from the semi-major axis of 0.937 AU.

An eccentricity of 0.166 makes the orbit moderately elongated.

The orbital plane is tilted 10.03° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 36.4 km/s at perihelion and falls to 26 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 = 27 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

Astrometry from 43 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4204 arcseconds.

Condition code U = 5 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
0.9369 AU
Eccentricity
0.1662
Perihelion
0.781 AU
Aphelion
1.092613 AU
Inclination
10.03°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
124.81°

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
27.0

Orbit Quality

RMS
0.42041
Condition
5
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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