SpaceAtlas Space Object Data
NASA JPL SBDB · 2023 KT2

2023 KT2

2023 KT2 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.91 AU and a period of 0.87 yr.

Aten Observations: 64
Orbital Period · P
0.87 yr
v(q)
36.1 km/s
v(Q)
27 km/s
Diameter · ≈
0.01 km
TJ
6.54
Eccentricity · e
0.1451

Orbit and dynamics

The path is an ellipse reaching 0.778 AU from the Sun at perihelion and 1.042 AU at aphelion, a radial span of 0.264 AU.

Applying Kepler's third law to a = 0.91 AU gives an orbital period of 0.87 yr, or about 317 days.

An eccentricity of 0.145 makes the orbit moderately elongated.

Its inclination of 3.51° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 36.1 km/s at perihelion and falls to 27 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 = 28.14 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 64 observations and has a weighted RMS residual of 0.644 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
0.9104 AU
Eccentricity
0.1451
Perihelion
0.778 AU
Aphelion
1.042499 AU
Inclination
3.51°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
323.55°

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
2029-May-25 15:47 0.474633 AU
71004099 km
17.44 km/s
2030-Jan-20 10:32 0.199653 AU
29867649 km
5.47 km/s
2030-Jul-31 04:09 0.197245 AU
29507407 km
8.70 km/s
2036-May-13 03:21 0.174514 AU
26106862 km
8.53 km/s
2036-Nov-17 16:48 0.191304 AU
28618637 km
5.55 km/s
2037-Jul-19 05:40 0.481167 AU
71981594 km
17.53 km/s
2043-Jul-09 13:55 0.052352 AU
7831789 km
2.86 km/s
2049-May-20 02:12 0.349354 AU
52262644 km
13.93 km/s
2049-Dec-25 13:17 0.208993 AU
31264898 km
6.10 km/s
2050-Jul-26 13:18 0.306046 AU
45783766 km
12.33 km/s
2056-May-12 02:53 0.020516 AU
3069160 km
4.21 km/s
2056-Oct-12 02:21 0.146486 AU
21914020 km
3.73 km/s
2069-May-24 09:14 0.308215 AU
46108271 km
16.87 km/s
2070-Aug-01 03:38 0.070766 AU
10586448 km
8.88 km/s
2076-May-15 10:15 0.034042 AU
5092537 km
10.66 km/s
2077-Jul-23 16:37 0.199184 AU
29797512 km
15.12 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
28.14

Orbit Quality

RMS
0.64399
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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