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Asteroid Near-Earth

2026 CW3

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(2026 CW3)

Where is it now

Distance from Sun
0.929 AU
True anomaly
131.92°
Distance from Earth
1.39 AU
As of
19 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 — 0.996 AU from the Sun Earth 2026 CW3 — 0.929 AU from the Sun 2026 CW3
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2026 CW3 is 1.39 AU from Earth today (11.6 light-minutes).

In the sky

Right ascension
10h 58m 29s
Declination
+03° 02′ 40″
Constellation
Leo
Distance from Earth
1.39 AU
Elongation from the Sun
41.88° — 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
0.829 AU
Eccentricity
0.2364
Inclination
11.15°
Orbital period
275.5 days
Perihelion
0.633 AU
Aphelion
1.024 AU
Longitude of ascending node
144.46°
Argument of periapsis
202°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 4.9 LD
0.0127 AU
Tisserand (Jupiter)
7.041

Orbit quality

Orbit poorly determined (uncertainty code 6).

Observations used
59
Data arc
7 days
First observed
15 February 2026
Last observed
22 February 2026
Residual RMS
0.41 ″
Solution · Otto Matic
23 February 2026

Visual & observation

Absolute magnitude (H)
26.78

Discovery & classification

Aten Near-Earth Object

Close approaches 25 on record

Flyby geometry
Ecliptic flyby of 2026 CW3 at 2029-02-06 01:39 UTC Top-down view of the ecliptic, Earth at the centre, for the 2029-02-06 01:39 UTC close approach of 2026 CW3. Catalogue miss distance 32.7 LD · 1.26 × 10⁷ km. The curve is the geocentric path from 2029-02-03 to 2029-02-09, 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 south of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate. Sun 32.7 LD · 1.26 × 10⁷ km 2029-02-06 01:39 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2029-02-06 01:39 UTC close approach of 2026 CW3. Catalogue miss distance 32.7 LD · 1.26 × 10⁷ km. The curve is the geocentric path from 2029-02-03 to 2029-02-09, 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 south 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
2027-04-01 14:27:00 Venus 0.1166 AU 45.4 LD 10.3 km/s
2029-02-06 01:39:00 Earth 0.0841 AU 32.7 LD 9 km/s
2032-02-06 11:11:00 Earth 0.1881 AU 73.2 LD 11.9 km/s
2034-02-06 02:07:00 Venus 0.0932 AU 36.3 LD 9.6 km/s
2040-12-19 20:52:00 Venus 0.1132 AU 44.1 LD 9.4 km/s
2043-11-05 05:18:00 Venus 0.1375 AU 53.5 LD 11.8 km/s
2060-03-16 17:50:00 Earth 0.149 AU 58.0 LD 7.9 km/s
2066-02-13 06:57:00 Earth 0.0179 AU 7.0 LD 7.1 km/s
2069-02-07 15:58:00 Earth 0.0437 AU 17.0 LD 8 km/s
2072-02-06 02:10:00 Earth 0.1235 AU 48.0 LD 10.1 km/s

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

Sources