Skip to content
Public Universe
Asteroid Near-Earth

289227

Add to an observing list or journal →

289227 (2004 XY60)

Where is it now

Distance from Sun
0.903 AU
True anomaly
158.43°
Distance from Earth
0.62 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 289227 — 0.903 AU from the Sun 289227
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 289227 is 0.62 AU from Earth today (5.2 light-minutes).

In the sky

Right ascension
09h 05m 10s
Declination
-19° 02′ 13″
Constellation
Hydra
Distance from Earth
0.62 AU
Elongation from the Sun
63.58° — well clear of the Sun

Favours the southern hemisphere; low or below the horizon from far north.

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
0.64 AU
Eccentricity
0.7966
Inclination
23.79°
Orbital period
187.1 days
Perihelion
0.13 AU
Aphelion
1.15 AU
Longitude of ascending node
122.55°
Argument of periapsis
130.91°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 75.5 LD
0.1941 AU
Tisserand (Jupiter)
8.516

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
258
Data arc
21.07 years
First observed
14 December 2004
Last observed
7 January 2026
Residual RMS
0.38 ″
Solution · Otto Matic
25 August 2026

Visual & observation

Absolute magnitude (H)
18.67

Discovery & classification

Discovered by
Siding Spring Survey
Discovery date
14 December 2004
Discovery site
Siding Spring

Also known as 2004 XY60

Aten Near-Earth Object

Close approaches 200 on record

Flyby geometry
Ecliptic flyby of 289227 at 2044-12-28 16:12 UTC Top-down view of the ecliptic, Earth at the centre, for the 2044-12-28 16:12 UTC close approach of 289227. Catalogue miss distance 75.3 LD · 2.89 × 10⁷ km. The curve is the geocentric path from 2044-12-25 to 2044-12-31, 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 75.3 LD · 2.89 × 10⁷ km 2044-12-28 16:12 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2044-12-28 16:12 UTC close approach of 289227. Catalogue miss distance 75.3 LD · 2.89 × 10⁷ km. The curve is the geocentric path from 2044-12-25 to 2044-12-31, 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
2030-09-28 21:11:00 Mercury 0.0294 AU 11.4 LD 54.2 km/s
2030-09-28 21:11:00 Merc 0.0294 AU 11.4 LD 54.2 km/s
2034-11-03 02:50:00 Mercury 0.0653 AU 25.4 LD 49.4 km/s
2034-11-03 02:50:00 Merc 0.0653 AU 25.4 LD 49.4 km/s
2036-12-08 10:35:00 Merc 0.0975 AU 37.9 LD 56.5 km/s
2036-12-08 10:35:00 Mercury 0.0975 AU 37.9 LD 56.5 km/s
2041-01-12 22:45:00 Mercury 0.0995 AU 38.7 LD 61.7 km/s
2041-01-12 22:45:00 Merc 0.0995 AU 38.7 LD 61.7 km/s
2044-12-28 16:12:00 Earth 0.1935 AU 75.3 LD 24.2 km/s
2054-10-27 13:21:00 Mercury 0.0721 AU 28.1 LD 69.3 km/s

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

Sources