SpaceAtlas Space Object Data
NASA JPL SBDB · 2023 KY2

2023 KY2

2023 KY2 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.442 AU it takes 1.73 yr to circle the Sun.

Apollo Observations: 48
Orbital Period · P
1.73 yr
v(q)
35.6 km/s
v(Q)
17.3 km/s
Diameter · ≈
0.04 km
TJ
4.55
Eccentricity · e
0.3466

Orbit and dynamics

Between its closest point (0.943 AU) and its farthest (1.942 AU), the heliocentric distance changes by 0.999 AU over every revolution.

One full revolution takes 1.73 yr (632 days), computed from the semi-major axis of 1.442 AU.

An eccentricity of 0.347 makes the orbit moderately elongated.

The orbital plane is tilted 18.52° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 35.6 km/s at perihelion and falls to 17.3 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 = 24.65 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.04 km.

Observation record and orbit quality

Astrometry from 48 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6106 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
1.442 AU
Eccentricity
0.3466
Perihelion
0.943 AU
Aphelion
1.941797 AU
Inclination
18.52°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
300.93°

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-Jan-15 05:56 0.304973 AU
45623351 km
13.30 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
24.65

Orbit Quality

RMS
0.61057
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.

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