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Asteroid Near-Earth

380818

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380818 (2005 YV128)

Where is it now

Distance from Sun
1.255 AU
True anomaly
206.69°
Distance from Earth
2.091 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 380818 — 1.255 AU from the Sun 380818
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 380818 is 2.091 AU from Earth today (17.4 light-minutes).

In the sky

Right ascension
12h 26m 12s
Declination
+02° 55′ 01″
Constellation
Virgo
Distance from Earth
2.09 AU
Elongation from the Sun
24.65° — 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
0.923 AU
Eccentricity
0.5124
Inclination
14.14°
Orbital period
323.9 days
Perihelion
0.45 AU
Aphelion
1.396 AU
Longitude of ascending node
127.69°
Argument of periapsis
191.83°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 60.0 LD
0.1542 AU
Tisserand (Jupiter)
6.339

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
232
Data arc
18.2 years
First observed
30 December 2005
Last observed
11 March 2024
Residual RMS
0.47 ″
Solution · Otto Matic
18 July 2025

Visual & observation

Absolute magnitude (H)
20.67

Discovery & classification

Discovered by
Siding Spring Survey
Discovery date
30 December 2005
Discovery site
Siding Spring

Also known as 2005 YV128

Aten Near-Earth Object

Close approaches 76 on record

Flyby geometry
Ecliptic flyby of 380818 at 2044-12-25 00:01 UTC Top-down view of the ecliptic, Earth at the centre, for the 2044-12-25 00:01 UTC close approach of 380818. Catalogue miss distance 75.9 LD · 2.92 × 10⁷ km. The curve is the geocentric path from 2044-12-22 to 2044-12-28, 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 75.9 LD · 2.92 × 10⁷ km 2044-12-25 00:01 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2044-12-25 00:01 UTC close approach of 380818. Catalogue miss distance 75.9 LD · 2.92 × 10⁷ km. The curve is the geocentric path from 2044-12-22 to 2044-12-28, 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
2033-04-14 02:26:00 Merc 0.0792 AU 30.8 LD 16.5 km/s
2033-04-14 02:26:00 Mercury 0.0792 AU 30.8 LD 16.5 km/s
2035-12-14 04:49:00 Merc 0.0632 AU 24.6 LD 21 km/s
2035-12-14 04:49:00 Mercury 0.0632 AU 24.6 LD 21 km/s
2044-12-25 00:01:00 Earth 0.195 AU 75.9 LD 19.9 km/s
2052-10-15 11:23:00 Merc 0.0861 AU 33.5 LD 16.6 km/s
2052-10-15 11:23:00 Mercury 0.0861 AU 33.5 LD 16.6 km/s
2052-12-22 23:05:00 Earth 0.154 AU 59.9 LD 16.6 km/s
2055-06-17 10:14:00 Mercury 0.0584 AU 22.7 LD 20.4 km/s
2055-06-17 10:14:00 Merc 0.0584 AU 22.7 LD 20.4 km/s

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

Sources