SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 AX11

2019 AX11

2019 AX11 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.768 AU and a period of 0.67 yr.

Aten Observations: 14
Orbital Period · P
0.67 yr
v(q)
53.7 km/s
v(Q)
21.5 km/s
Diameter · ≈
0.04 km
TJ
7.45
Eccentricity · e
0.4276

Orbit and dynamics

The path is an ellipse reaching 0.439 AU from the Sun at perihelion and 1.096 AU at aphelion, a radial span of 0.657 AU.

Applying Kepler's third law to a = 0.768 AU gives an orbital period of 0.67 yr, or about 246 days.

The high eccentricity (0.428) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 15.01° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 53.7 km/s at perihelion and falls to 21.5 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 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.04 km.

Observation record and orbit quality

The current orbit solution is based on 14 observations and has a weighted RMS residual of 0.6681 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
0.7678 AU
Eccentricity
0.4276
Perihelion
0.439 AU
Aphelion
1.096111 AU
Inclination
15.01°
Orbital Period
— yr
Epoch
2458496.5
Mean Anomaly
164.7°

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
25.0

Orbit Quality

RMS
0.66807
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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