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Asteroid Near-Earth Potentially hazardous

348306

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348306 (2005 AY28)

Where is it now

Distance from Sun
1.307 AU
True anomaly
164.51°
Distance from Earth
1.028 AU
As of
20 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 348306 — 1.307 AU from the Sun 348306
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 348306 is 1.028 AU from Earth today (8.6 light-minutes).

In the sky

Right ascension
08h 32m 32s
Declination
+13° 55′ 57″
Constellation
Cancer
Distance from Earth
1.03 AU
Elongation from the Sun
80.5° — well clear of the Sun

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
0.873 AU
Eccentricity
0.5702
Inclination
5.89°
Orbital period
297.7 days
Perihelion
0.375 AU
Aphelion
1.37 AU
Longitude of ascending node
117.4°
Argument of periapsis
156.07°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 14.1 LD
0.0362 AU
Tisserand (Jupiter)
6.632

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
271
Data arc
20.91 years
First observed
13 January 2005
Last observed
12 December 2025
Residual RMS
0.52 ″
Solution · Otto Matic
13 December 2025

Visual & observation

Absolute magnitude (H)
21.51

Discovery & classification

Discovered by
LINEAR
Discovery date
15 January 2005
Discovery site
Socorro

Also known as 2005 AY28

Aten Near-Earth Object Potentially Hazardous Asteroid

Close approaches 236 on record

Flyby geometry
Ecliptic flyby of 348306 at 2036-02-08 05:27 UTC Top-down view of the ecliptic, Earth at the centre, for the 2036-02-08 05:27 UTC close approach of 348306. Catalogue miss distance 24.5 LD · 9.4 × 10⁶ km. The curve is the geocentric path from 2036-02-05 to 2036-02-11, 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 11 Feb 24.5 LD · 9.4 × 10⁶ km 2036-02-08 05:27 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2036-02-08 05:27 UTC close approach of 348306. Catalogue miss distance 24.5 LD · 9.4 × 10⁶ km. The curve is the geocentric path from 2036-02-05 to 2036-02-11, 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
2027-05-29 00:15:00 Venus 0.0799 AU 31.1 LD 18.1 km/s
2028-12-18 16:44:00 Mercury 0.049 AU 19.1 LD 30.6 km/s
2028-12-18 16:44:00 Merc 0.049 AU 19.1 LD 30.6 km/s
2036-02-08 05:27:00 Earth 0.0629 AU 24.5 LD 16.1 km/s
2037-01-21 17:07:00 Mercury 0.0372 AU 14.5 LD 25.9 km/s
2037-01-21 17:07:00 Merc 0.0372 AU 14.5 LD 25.9 km/s
2038-11-14 20:37:00 Earth 0.152 AU 59.1 LD 21.2 km/s
2039-07-24 11:46:00 Merc 0.0383 AU 14.9 LD 28.3 km/s
2039-07-24 11:46:00 Mercury 0.0383 AU 14.9 LD 28.3 km/s
2045-02-03 05:27:00 Earth 0.1467 AU 57.1 LD 22 km/s

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

Sources