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Asteroid Near-Earth

2018 CW2

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(2018 CW2)

Where is it now

Distance from Sun
0.953 AU
True anomaly
215.31°
Distance from Earth
1.778 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 2018 CW2 — 0.953 AU from the Sun 2018 CW2
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2018 CW2 is 1.778 AU from Earth today (14.8 light-minutes).

In the sky

Right ascension
11h 59m 34s
Declination
-00° 07′ 12″
Constellation
Virgo
Distance from Earth
1.78 AU
Elongation from the Sun
23.64° — near the Sun — look low at dusk or dawn

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
0.76 AU
Eccentricity
0.4226
Inclination
5.1°
Orbital period
241.9 days
Perihelion
0.439 AU
Aphelion
1.081 AU
Longitude of ascending node
331.9°
Argument of periapsis
327.74°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 1.7 LD
0.0043 AU
Tisserand (Jupiter)
7.538

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
161
Data arc
4.03 years
First observed
9 February 2018
Last observed
19 February 2022
Residual RMS
0.34 ″
Solution · Otto Matic
28 July 2026

Visual & observation

Absolute magnitude (H)
25.66

Discovery & classification

Aten Near-Earth Object

Close approaches 229 on record

Flyby geometry
Ecliptic flyby of 2018 CW2 at 2056-12-21 08:25 UTC Top-down view of the ecliptic, Earth at the centre, for the 2056-12-21 08:25 UTC close approach of 2018 CW2. Catalogue miss distance 69.0 LD · 2.65 × 10⁷ km. The curve is the geocentric path from 2056-12-18 to 2056-12-24, 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 69.0 LD · 2.65 × 10⁷ km 2056-12-21 08:25 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2056-12-21 08:25 UTC close approach of 2018 CW2. Catalogue miss distance 69.0 LD · 2.65 × 10⁷ km. The curve is the geocentric path from 2056-12-18 to 2056-12-24, 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
2029-07-13 23:24:00 Venus 0.1477 AU 57.5 LD 21.7 km/s
2032-05-22 11:39:00 Venus 0.1308 AU 50.9 LD 20.5 km/s
2040-12-30 22:19:00 Venus 0.1034 AU 40.2 LD 18.6 km/s
2049-08-10 15:00:00 Venus 0.0876 AU 34.1 LD 17 km/s
2055-12-31 20:01:00 Venus 0.147 AU 57.2 LD 10.1 km/s
2056-12-21 08:25:00 Earth 0.1773 AU 69.0 LD 15.6 km/s
2058-03-22 02:57:00 Venus 0.085 AU 33.1 LD 16.5 km/s
2058-12-20 20:22:00 Earth 0.1198 AU 46.6 LD 13.3 km/s
2060-12-21 02:28:00 Earth 0.0826 AU 32.1 LD 11.2 km/s
2062-12-25 16:17:00 Earth 0.0802 AU 31.2 LD 9.6 km/s

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

Sources