SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 AW2

2020 AW2

2020 AW2 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.327 AU it takes 1.53 yr to circle the Sun.

Apollo Observations: 37
Orbital Period · P
1.53 yr
v(q)
33 km/s
v(Q)
20.3 km/s
Diameter · ≈
0.08 km
TJ
4.89
Eccentricity · e
0.2386

Orbit and dynamics

Between its closest point (1.01 AU) and its farthest (1.644 AU), the heliocentric distance changes by 0.634 AU over every revolution.

One full revolution takes 1.53 yr (558 days), computed from the semi-major axis of 1.327 AU.

An eccentricity of 0.239 makes the orbit moderately elongated.

The orbital plane is tilted 10.76° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 33 km/s at perihelion and falls to 20.3 km/s at aphelion.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 23.33 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.08 km.

Observation record and orbit quality

Astrometry from 37 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5688 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
1.327 AU
Eccentricity
0.2386
Perihelion
1.01 AU
Aphelion
1.643622 AU
Inclination
10.76°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
69.34°

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
2043-May-18 16:02 0.467849 AU
69989281 km
7.05 km/s
2045-Dec-24 02:36 0.158775 AU
23752456 km
10.72 km/s
2052-Feb-29 18:37 0.373963 AU
55944090 km
16.44 km/s
2071-Dec-20 00:33 0.310206 AU
46406186 km
12.36 km/s
2072-Apr-08 17:30 0.378829 AU
56671942 km
3.07 km/s
2075-Jan-23 16:11 0.043368 AU
6487817 km
6.73 km/s
2077-Oct-08 06:00 0.429671 AU
64277834 km
5.47 km/s
2078-Feb-28 12:11 0.420280 AU
62873061 km
15.97 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
23.33

Orbit Quality

RMS
0.5688
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

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