SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 KZ2

2020 KZ2

2020 KZ2 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.014 AU it takes 1.02 yr to circle the Sun.

Apollo Observations: 39
Orbital Period · P
1.02 yr
v(q)
30.6 km/s
v(Q)
28.6 km/s
Diameter · ≈
0.01 km
TJ
6.01
Eccentricity · e
0.0325

Orbit and dynamics

The path is an ellipse reaching 0.981 AU from the Sun at perihelion and 1.047 AU at aphelion, a radial span of 0.066 AU.

Applying Kepler's third law to a = 1.014 AU gives an orbital period of 1.02 yr, or about 373 days.

With e = 0.033, the orbit is close to circular.

The orbital plane is tilted 7.15° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 30.6 km/s at perihelion and falls to 28.6 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 = 27.7 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

The current orbit solution is based on 39 observations and has a weighted RMS residual of 0.37 arcseconds.

Condition code U = 5 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
1.014 AU
Eccentricity
0.0325
Perihelion
0.981 AU
Aphelion
1.046955 AU
Inclination
7.15°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
148.36°

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
2065-Jul-16 02:47 0.375384 AU
56156656 km
11.29 km/s
2066-Jul-05 16:00 0.255231 AU
38181953 km
7.96 km/s
2066-Oct-21 18:01 0.254288 AU
38041012 km
8.26 km/s
2067-Jun-19 05:33 0.141829 AU
21217245 km
5.35 km/s
2067-Nov-11 05:21 0.130655 AU
19545653 km
5.33 km/s
2068-Jun-01 05:00 0.045963 AU
6875995 km
3.88 km/s
2068-Nov-22 23:20 0.026706 AU
3995226 km
3.87 km/s
2069-May-18 23:13 0.050813 AU
7601509 km
3.81 km/s
2069-Nov-30 19:27 0.051343 AU
7680744 km
4.25 km/s
2070-Apr-29 17:40 0.132129 AU
19766280 km
4.67 km/s
2070-Dec-08 21:09 0.158881 AU
23768198 km
6.44 km/s
2071-Dec-16 03:52 0.275238 AU
41175037 km
9.56 km/s
2072-Dec-22 13:41 0.394673 AU
59042286 km
13.03 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
27.7

Orbit Quality

RMS
0.36998
Condition
5
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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