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Asteroid Near-Earth

2020 YW3

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(2020 YW3)

Where is it now

Distance from Sun
1.307 AU
True anomaly
161.53°
Distance from Earth
1.753 AU
As of
22 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 2020 YW3 — 1.307 AU from the Sun 2020 YW3
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2020 YW3 is 1.753 AU from Earth today (14.6 light-minutes).

In the sky

Right ascension
10h 49m 59s
Declination
+03° 39′ 25″
Constellation
Sextans
Distance from Earth
1.75 AU
Elongation from the Sun
47.8° — 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
0.962 AU
Eccentricity
0.4056
Inclination
5.56°
Orbital period
344.8 days
Perihelion
0.572 AU
Aphelion
1.353 AU
Longitude of ascending node
251.06°
Argument of periapsis
75.23°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 7.6 LD
0.0195 AU
Tisserand (Jupiter)
6.189

Orbit quality

Orbit poorly determined (uncertainty code 7).

Observations used
21
Data arc
12 days
First observed
22 December 2020
Last observed
3 January 2021
Residual RMS
0.6 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
25.73

Discovery & classification

Aten Near-Earth Object

Close approaches 90 on record

Flyby geometry
Ecliptic flyby of 2020 YW3 at 2036-12-26 09:08 UTC Top-down view of the ecliptic, Earth at the centre, for the 2036-12-26 09:08 UTC close approach of 2020 YW3. Catalogue miss distance 124.3 LD · 4.78 × 10⁷ km. The curve is the geocentric path from 2036-12-23 to 2036-12-29, 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 124.3 LD · 4.78 × 10⁷ km 2036-12-26 09:08 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2036-12-26 09:08 UTC close approach of 2020 YW3. Catalogue miss distance 124.3 LD · 4.78 × 10⁷ km. The curve is the geocentric path from 2036-12-23 to 2036-12-29, 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
2035-10-16 07:33:00 Venus 0.0761 AU 29.6 LD 17.9 km/s
2036-12-26 09:08:00 Earth 0.3193 AU 124.3 LD 22.8 km/s
2037-12-14 03:22:00 Earth 0.0325 AU 12.7 LD 12.2 km/s
2039-10-01 08:00:00 Venus 0.0737 AU 28.7 LD 12.2 km/s
2042-04-18 19:23:00 Earth 0.0665 AU 25.9 LD 12.9 km/s
2043-04-05 09:26:00 Earth 0.3514 AU 136.8 LD 23.4 km/s
2049-12-08 11:49:00 Venus 0.0924 AU 36.0 LD 18.6 km/s
2053-12-20 03:35:00 Earth 0.158 AU 61.5 LD 17.7 km/s
2056-01-31 11:37:00 Earth 0.3628 AU 141.2 LD 10.2 km/s
2056-08-14 08:32:00 Earth 0.4464 AU 173.7 LD 17.3 km/s

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

Sources