SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 AW13

2019 AW13

2019 AW13 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.699 AU it takes 2.21 yr to circle the Sun.

Apollo Observations: 36
Orbital Period · P
2.21 yr
v(q)
61.3 km/s
v(Q)
8.5 km/s
Diameter · ≈
0.47 km
TJ
3.72
Eccentricity · e
0.7558

Orbit and dynamics

Between its closest point (0.415 AU) and its farthest (2.983 AU), the heliocentric distance changes by 2.568 AU over every revolution.

One full revolution takes 2.21 yr (809 days), computed from the semi-major axis of 1.699 AU.

The high eccentricity (0.756) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 28.19° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 61.3 km/s at perihelion and falls to 8.5 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 = 19.4 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.47 km.

Observation record and orbit quality

Astrometry from 36 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6468 arcseconds.

Condition code U = 3 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
1.699 AU
Eccentricity
0.7558
Perihelion
0.415 AU
Aphelion
2.983104 AU
Inclination
28.19°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
97.52°

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
2030-Mar-06 22:34 0.449644 AU
67265772 km
21.12 km/s
2032-Jul-28 12:04 0.462686 AU
69216808 km
20.24 km/s
2039-Jan-09 17:44 0.448895 AU
67153767 km
41.42 km/s
2043-Sep-01 03:29 0.146356 AU
21894562 km
28.03 km/s
2050-Jan-29 15:06 0.154498 AU
23112526 km
29.99 km/s
2054-Sep-20 15:02 0.369499 AU
55276285 km
38.61 km/s
2061-Feb-25 13:35 0.391752 AU
58605331 km
21.10 km/s
2074-Aug-26 01:51 0.198657 AU
29718651 km
25.57 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
19.4

Orbit Quality

RMS
0.64675
Condition
3
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.

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