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Asteroid Near-Earth

2015 WZ12

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(2015 WZ12)

Where is it now

Distance from Sun
0.891 AU
True anomaly
142.66°
Distance from Earth
0.122 AU
As of
15 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 2015 WZ12 — 0.891 AU from the Sun 2015 WZ12
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2015 WZ12 is 0.122 AU from Earth today (1.0 light-minutes).

In the sky

Right ascension
15h 06m 06s
Declination
+05° 17′ 52″
Constellation
Virgo
Distance from Earth
0.12 AU
Elongation from the Sun
28.73° — 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
0.721 AU
Eccentricity
0.4126
Inclination
3.64°
Orbital period
223.8 days
Perihelion
0.424 AU
Aphelion
1.019 AU
Longitude of ascending node
250.91°
Argument of periapsis
346.51°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 1.8 LD
0.0046 AU
Tisserand (Jupiter)
7.889

Orbit quality

Orbit poorly determined (uncertainty code 6).

Observations used
71
Data arc
6 days
First observed
30 November 2015
Last observed
6 December 2015
Residual RMS
0.38 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
26.3

Discovery & classification

Aten Near-Earth Object

Close approaches 282 on record

Flyby geometry
Ecliptic flyby of 2015 WZ12 at 2026-10-30 07:46 UTC Top-down view of the ecliptic, Earth at the centre, for the 2026-10-30 07:46 UTC close approach of 2015 WZ12. Catalogue miss distance 26.7 LD · 1.03 × 10⁷ km. The curve is the geocentric path from 2026-10-27 to 2026-11-02, 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 26.7 LD · 1.03 × 10⁷ km 2026-10-30 07:46 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2026-10-30 07:46 UTC close approach of 2015 WZ12. Catalogue miss distance 26.7 LD · 1.03 × 10⁷ km. The curve is the geocentric path from 2026-10-27 to 2026-11-02, 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
2026-10-30 07:46:00 Earth 0.0686 AU 26.7 LD 10.3 km/s
2027-04-02 03:36:00 Merc 0.0872 AU 33.9 LD 24.5 km/s
2027-04-02 03:36:00 Mercury 0.0872 AU 33.9 LD 24.5 km/s
2029-11-06 03:06:00 Earth 0.418 AU 162.7 LD 23 km/s
2031-08-01 20:54:00 Earth 0.4795 AU 186.6 LD 13.6 km/s
2031-12-10 20:07:00 Earth 0.2692 AU 104.8 LD 17.7 km/s
2032-09-23 03:14:00 Merc 0.0268 AU 10.4 LD 18 km/s
2032-09-23 03:14:00 Mercury 0.0268 AU 10.4 LD 18 km/s
2033-12-28 02:23:00 Mercury 0.0741 AU 28.8 LD 22.7 km/s
2033-12-28 02:23:00 Merc 0.0741 AU 28.8 LD 22.7 km/s

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

Sources