SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 YL6

2019 YL6

2019 YL6 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.933 AU and a period of 0.90 yr.

Aten Observations: 16
Orbital Period · P
0.90 yr
v(q)
34 km/s
v(Q)
28 km/s
Diameter · ≈
0.03 km
TJ
6.42
Eccentricity · e
0.0957

Orbit and dynamics

Between its closest point (0.843 AU) and its farthest (1.022 AU), the heliocentric distance changes by 0.179 AU over every revolution.

One full revolution takes 0.90 yr (329 days), computed from the semi-major axis of 0.933 AU.

With e = 0.096, the orbit is close to circular.

The orbital plane is tilted 7.64° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 34 km/s at perihelion and falls to 28 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

Astrometry from 16 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5084 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
0.9327 AU
Eccentricity
0.0957
Perihelion
0.843 AU
Aphelion
1.021959 AU
Inclination
7.64°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
263.74°

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-Aug-20 15:42 0.155959 AU
23331105 km
4.13 km/s
2028-Dec-23 03:35 0.035054 AU
5243945 km
4.51 km/s
2048-Jan-12 21:45 0.210917 AU
31552725 km
16.51 km/s
2073-Nov-05 10:25 0.224921 AU
33647710 km
16.39 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
0.50837
Condition
6
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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