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Asteroid Near-Earth

2023 KX3

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(2023 KX3)

Where is it now

Distance from Sun
0.934 AU
True anomaly
287.62°
Distance from Earth
0.405 AU
As of
24 October 2026

Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.

Sun Earth — 0.994 AU from the Sun Earth 2023 KX3 — 0.934 AU from the Sun 2023 KX3
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2023 KX3 is 0.405 AU from Earth today (3.4 light-minutes).

In the sky

Right ascension
09h 36m 13s
Declination
+12° 45′ 49″
Constellation
Leo
Distance from Earth
0.41 AU
Elongation from the Sun
69.5° — well clear of the Sun

Visible from both hemispheres.

From your location

See how high it is right now, whether it is up after civil twilight, and when it rises and sets where you are.

How do I find my coordinates?

Google Maps on a computer

  1. Right-click the spot where you'll be observing.
  2. The first line of the menu is the coordinates, e.g. 51.50722, -0.12758 — click it and they're copied.
  3. Paste them above.

Google Maps on a phone

  1. Press and hold the spot to drop a pin.
  2. The coordinates appear in the search bar (or on the pin's card) — tap to copy, then paste above.

A full Google Maps link works too, but the short maps.app.goo.gl share links don't carry coordinates — copy the numbers instead. We round to about a kilometre; that's all the sky calculation needs.

Know your what3words address? Paste it, e.g. ///filled.count.soap. This is optional — the three words are sent to what3words to convert them, and we don't store the address or the result.

Your location stays in your browser and is sent only for this calculation. Using a what3words address is optional; if you do, the three words go to what3words to be converted and we don't record them. Set a location first, then you can save an email alert for this object. See our privacy policy.

Two-body approximation, good to about a degree for the planets — enough to find the constellation and know whether it is up.

Orbital elements

Semi-major axis
0.976 AU
Eccentricity
0.109
Inclination
3.14°
Orbital period
352.3 days
Perihelion
0.87 AU
Aphelion
1.083 AU
Longitude of ascending node
67.17°
Argument of periapsis
60.53°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 1.2 LD
0.003 AU
Tisserand (Jupiter)
6.19

Orbit quality

Orbit reasonably well determined (uncertainty code 3).

Observations used
80
Data arc
21 days
First observed
27 May 2023
Last observed
17 June 2023
Residual RMS
0.36 ″
Solution · Otto Matic
22 June 2023

Visual & observation

Absolute magnitude (H)
25.77

Discovery & classification

Aten Near-Earth Object

Close approaches 53 on record

Flyby geometry
Ecliptic flyby of 2023 KX3 at 2048-06-11 16:19 UTC Top-down view of the ecliptic, Earth at the centre, for the 2048-06-11 16:19 UTC close approach of 2023 KX3. Catalogue miss distance 180.7 LD · 6.95 × 10⁷ km. The curve is the geocentric path from 2048-06-08 to 2048-06-14, with a mark at UTC midnights and an arrow for the direction of motion. The circle is the Moon’s mean orbit; the Moon is plotted at closest approach. A ray shows the Sun’s direction. The labelled distance is the full separation. The drawn radius is the part that lies in the ecliptic plane. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate. Sun 180.7 LD · 6.95 × 10⁷ km 2048-06-11 16:19 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2048-06-11 16:19 UTC close approach of 2023 KX3. Catalogue miss distance 180.7 LD · 6.95 × 10⁷ km. The curve is the geocentric path from 2048-06-08 to 2048-06-14, with a mark at UTC midnights and an arrow for the direction of motion. The circle is the Moon’s mean orbit; the Moon is plotted at closest approach. A ray shows the Sun’s direction. The labelled distance is the full separation. The drawn radius is the part that lies in the ecliptic plane. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate.

JPL Horizons

When (UTC) Body Distance Lunar distances Relative speed
2026-09-29 04:47:00 Earth 0.4043 AU 157.3 LD 14.8 km/s
2048-06-11 16:19:00 Earth 0.4644 AU 180.7 LD 16.6 km/s
2049-06-02 02:31:00 Earth 0.2493 AU 97.0 LD 10.2 km/s
2050-05-25 15:16:00 Earth 0.0335 AU 13.0 LD 4 km/s
2051-03-05 06:57:00 Earth 0.1159 AU 45.1 LD 3 km/s
2051-08-12 02:10:00 Earth 0.0887 AU 34.5 LD 2.4 km/s
2051-12-18 07:29:00 Earth 0.0948 AU 36.9 LD 3 km/s
2052-10-19 03:42:00 Earth 0.08 AU 31.1 LD 5.1 km/s
2053-10-08 03:16:00 Earth 0.2735 AU 106.5 LD 11 km/s
2054-09-28 04:25:00 Earth 0.4704 AU 183.1 LD 16.8 km/s

Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.

Sources