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Asteroid Near-Earth

2010 KC

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(2010 KC)

Where is it now

Distance from Sun
1.24 AU
True anomaly
172.46°
Distance from Earth
2.236 AU
As of
16 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 — 0.997 AU from the Sun Earth 2010 KC — 1.24 AU from the Sun 2010 KC
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2010 KC is 2.236 AU from Earth today (18.6 light-minutes).

In the sky

Right ascension
13h 30m 37s
Declination
-08° 14′ 26″
Constellation
Virgo
Distance from Earth
2.24 AU
Elongation from the Sun
1.18° — 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
0.782 AU
Eccentricity
0.6071
Inclination
2.21°
Orbital period
252.5 days
Perihelion
0.307 AU
Aphelion
1.256 AU
Longitude of ascending node
94.34°
Argument of periapsis
297.23°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 7.6 LD
0.0196 AU
Tisserand (Jupiter)
7.271

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
85
Data arc
12.9 years
First observed
16 May 2010
Last observed
11 April 2023
Residual RMS
0.58 ″
Solution · Otto Matic
11 April 2023

Visual & observation

Absolute magnitude (H)
24.18

Discovery & classification

Aten Near-Earth Object

Close approaches 332 on record

Flyby geometry
Ecliptic flyby of 2010 KC at 2028-05-25 01:42 UTC Top-down view of the ecliptic, Earth at the centre, for the 2028-05-25 01:42 UTC close approach of 2010 KC. Catalogue miss distance 9.29 LD · 3.57 × 10⁶ km. The curve is the geocentric path from 2028-05-22 to 2028-05-28, 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 a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate. Sun 23 May 27 May 9.29 LD · 3.57 × 10⁶ km 2028-05-25 01:42 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2028-05-25 01:42 UTC close approach of 2010 KC. Catalogue miss distance 9.29 LD · 3.57 × 10⁶ km. The curve is the geocentric path from 2028-05-22 to 2028-05-28, 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 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
2028-05-25 01:42:00 Earth 0.0239 AU 9.3 LD 17 km/s
2029-04-07 09:01:00 Merc 0.0868 AU 33.8 LD 29.7 km/s
2029-04-07 09:01:00 Mercury 0.0868 AU 33.8 LD 29.7 km/s
2030-04-30 00:41:00 Earth 0.246 AU 95.7 LD 13 km/s
2030-09-21 14:54:00 Venus 0.1372 AU 53.4 LD 29.6 km/s
2032-03-22 18:06:00 Earth 0.1386 AU 53.9 LD 13.3 km/s
2033-12-28 17:44:00 Venus 0.0934 AU 36.4 LD 18.5 km/s
2034-03-25 10:52:00 Earth 0.2578 AU 100.3 LD 24.8 km/s
2034-10-11 12:10:00 Merc 0.0302 AU 11.7 LD 14.8 km/s
2034-10-11 12:10:00 Mercury 0.0302 AU 11.7 LD 14.8 km/s

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

Sources