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Asteroid Near-Earth

2013 CN118

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(2013 CN118)

Where is it now

Distance from Sun
1.234 AU
True anomaly
180.28°
Distance from Earth
2.217 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 2013 CN118 — 1.234 AU from the Sun 2013 CN118
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2013 CN118 is 2.217 AU from Earth today (18.4 light-minutes).

In the sky

Right ascension
13h 25m 12s
Declination
-07° 23′ 55″
Constellation
Virgo
Distance from Earth
2.22 AU
Elongation from the Sun
6.84° — 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
0.93 AU
Eccentricity
0.3264
Inclination
3.22°
Orbital period
327.8 days
Perihelion
0.627 AU
Aphelion
1.234 AU
Longitude of ascending node
143.66°
Argument of periapsis
232.69°
Epoch · J2000
2456338.5
Orbit class · ATE
Aten
Earth MOID · 3.2 LD
0.0081 AU
Tisserand (Jupiter)
6.391

Orbit quality

Orbit very uncertain — the object may be effectively lost (uncertainty code 8).

Observations used
20
Data arc
24 hours
First observed
14 February 2013
Last observed
15 February 2013
Residual RMS
0.48 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
25.47

Discovery & classification

Aten Near-Earth Object

Close approaches 19 on record

Flyby geometry
Ecliptic flyby of 2013 CN118 at 2030-02-15 11:22 UTC Top-down view of the ecliptic, Earth at the centre, for the 2030-02-15 11:22 UTC close approach of 2013 CN118. Catalogue miss distance 130.0 LD · 5 × 10⁷ km. The curve is the geocentric path from 2030-02-12 to 2030-02-18, 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 130.0 LD · 5 × 10⁷ km 2030-02-15 11:22 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2030-02-15 11:22 UTC close approach of 2013 CN118. Catalogue miss distance 130.0 LD · 5 × 10⁷ km. The curve is the geocentric path from 2030-02-12 to 2030-02-18, 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
2030-02-15 11:22:00 Earth 0.3341 AU 130.0 LD 19.9 km/s
2032-06-03 13:24:00 Earth 0.0591 AU 23.0 LD 10.3 km/s
2048-02-05 16:12:00 Earth 0.0445 AU 17.3 LD 10.9 km/s
2050-05-25 12:21:00 Earth 0.3034 AU 118.1 LD 18.6 km/s

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

Sources