SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 AM8

2019 AM8

2019 AM8 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.968 AU and a period of 0.95 yr.

Aten Observations: 17
Orbital Period · P
0.95 yr
v(q)
44.3 km/s
v(Q)
20.7 km/s
Diameter · ≈
0.01 km
TJ
6.18
Eccentricity · e
0.3634

Orbit and dynamics

Between its closest point (0.616 AU) and its farthest (1.32 AU), the heliocentric distance changes by 0.704 AU over every revolution.

One full revolution takes 0.95 yr (348 days), computed from the semi-major axis of 0.968 AU.

An eccentricity of 0.363 makes the orbit moderately elongated.

Its inclination of 2.23° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 44.3 km/s at perihelion and falls to 20.7 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 17 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6399 arcseconds.

Condition code U = 7 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
0.9679 AU
Eccentricity
0.3634
Perihelion
0.616 AU
Aphelion
1.319635 AU
Inclination
2.23°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
205.44°

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
2032-Sep-25 19:12 0.270690 AU
40494692 km
25.22 km/s
2033-Sep-14 08:47 0.037080 AU
5547100 km
16.54 km/s
2039-Jan-15 23:54 0.018460 AU
2761581 km
10.61 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
27.0

Orbit Quality

RMS
0.63988
Condition
7
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

Explore asteroids, comets and near-Earth objects with JPL orbital data.