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Asteroid Near-Earth

2023 KC1

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(2023 KC1)

Where is it now

Distance from Sun
1.197 AU
True anomaly
186.26°
Distance from Earth
2.152 AU
As of
21 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 — 0.995 AU from the Sun Earth 2023 KC1 — 1.197 AU from the Sun 2023 KC1
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2023 KC1 is 2.152 AU from Earth today (17.9 light-minutes).

In the sky

Right ascension
13h 26m 50s
Declination
-00° 15′ 21″
Constellation
Virgo
Distance from Earth
2.15 AU
Elongation from the Sun
12.21° — too close to the Sun to observe

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
0.934 AU
Eccentricity
0.2856
Inclination
19.8°
Orbital period
329.5 days
Perihelion
0.667 AU
Aphelion
1.2 AU
Longitude of ascending node
59.99°
Argument of periapsis
303.84°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 2.3 LD
0.0058 AU
Tisserand (Jupiter)
6.337

Orbit quality

Orbit poorly determined (uncertainty code 6).

Observations used
16
Data arc
7 days
First observed
14 May 2023
Last observed
21 May 2023
Residual RMS
0.5 ″
Solution · Otto Matic
22 May 2023

Visual & observation

Absolute magnitude (H)
26.62

Discovery & classification

Aten Near-Earth Object

Close approaches 133 on record

Flyby geometry
Ecliptic flyby of 2023 KC1 at 2030-12-18 21:19 UTC Top-down view of the ecliptic, Earth at the centre, for the 2030-12-18 21:19 UTC close approach of 2023 KC1. Catalogue miss distance 81.5 LD · 3.13 × 10⁷ km. The curve is the geocentric path from 2030-12-15 to 2030-12-21, 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. At closest approach the object is north of the ecliptic. The path is approximate: a two-body Kepler propagation of the catalogue orbital elements, not a numerical integration. The Moon’s position is approximate. The inset is a heliocentric view and is approximate. approximate Sun 81.5 LD · 3.13 × 10⁷ km 2030-12-18 21:19 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2030-12-18 21:19 UTC close approach of 2023 KC1. Catalogue miss distance 81.5 LD · 3.13 × 10⁷ km. The curve is the geocentric path from 2030-12-15 to 2030-12-21, 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. At closest approach the object is north of the ecliptic. The path is approximate: a two-body Kepler propagation of the catalogue orbital elements, not a numerical integration. The Moon’s position is approximate. The inset is a heliocentric view and is approximate.

When (UTC) Body Distance Lunar distances Relative speed
2030-12-18 21:19:00 Earth 0.2095 AU 81.5 LD 14.3 km/s
2031-10-03 23:30:00 Earth 0.4005 AU 155.9 LD 14.2 km/s
2032-05-21 15:03:00 Earth 0.1217 AU 47.4 LD 10.9 km/s
2033-05-06 18:28:00 Earth 0.45 AU 175.1 LD 24.3 km/s
2033-08-12 11:48:00 Venus 0.0495 AU 19.3 LD 12 km/s
2039-12-30 22:58:00 Earth 0.2454 AU 95.5 LD 15.8 km/s
2040-10-19 07:34:00 Earth 0.3618 AU 140.8 LD 14.5 km/s
2041-05-15 20:47:00 Earth 0.2252 AU 87.6 LD 10.2 km/s
2042-05-11 03:56:00 Earth 0.3451 AU 134.3 LD 21.3 km/s
2047-02-20 01:11:00 Venus 0.0956 AU 37.2 LD 11.3 km/s

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

Sources