SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 XZ3

2020 XZ3

2020 XZ3 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.514 AU it takes 1.86 yr to circle the Sun.

Apollo Observations: 87
Orbital Period · P
1.86 yr
v(q)
57.5 km/s
v(Q)
10.2 km/s
Diameter · ≈
0.25 km
TJ
4.19
Eccentricity · e
0.6991

Orbit and dynamics

Between its closest point (0.456 AU) and its farthest (2.572 AU), the heliocentric distance changes by 2.116 AU over every revolution.

One full revolution takes 1.86 yr (680 days), computed from the semi-major axis of 1.514 AU.

The high eccentricity (0.699) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 11.66° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 57.5 km/s at perihelion and falls to 10.2 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 = 20.74 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.25 km.

Observation record and orbit quality

Astrometry from 87 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5426 arcseconds.

Condition code U = 1 means the orbit is very well determined, leaving only a small uncertainty in the future ephemeris.

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
1.514 AU
Eccentricity
0.6991
Perihelion
0.456 AU
Aphelion
2.572437 AU
Inclination
11.66°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
17.41°

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
2033-Dec-07 06:30 0.213680 AU
31966106 km
20.36 km/s
2037-Jun-04 05:57 0.398653 AU
59637622 km
14.24 km/s
2039-Apr-11 12:23 0.496582 AU
74287544 km
37.30 km/s
2046-Dec-21 17:32 0.279863 AU
41866918 km
29.30 km/s
2052-Apr-24 11:19 0.257881 AU
38578456 km
28.43 km/s
2061-Nov-09 21:03 0.386637 AU
57840086 km
15.01 km/s
2065-May-08 22:23 0.223014 AU
33362461 km
19.64 km/s
2074-Dec-10 16:28 0.197079 AU
29482631 km
22.00 km/s
2078-Jun-18 09:35 0.437201 AU
65404274 km
16.85 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
20.74

Orbit Quality

RMS
0.54263
Condition
1
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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