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Asteroid Near-Earth

2010 AJ30

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(2010 AJ30)

Where is it now

Distance from Sun
1.035 AU
True anomaly
161.98°
Distance from Earth
1.195 AU
As of
17 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 2010 AJ30 — 1.035 AU from the Sun 2010 AJ30
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2010 AJ30 is 1.195 AU from Earth today (9.9 light-minutes).

In the sky

Right ascension
10h 11m 09s
Declination
+14° 20′ 48″
Constellation
Leo
Distance from Earth
1.19 AU
Elongation from the Sun
55.62° — 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
0.811 AU
Eccentricity
0.3024
Inclination
7.57°
Orbital period
266.9 days
Perihelion
0.566 AU
Aphelion
1.057 AU
Longitude of ascending node
303.36°
Argument of periapsis
350.84°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 17.9 LD
0.046 AU
Tisserand (Jupiter)
7.159

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
117
Data arc
11.11 years
First observed
10 January 2010
Last observed
20 February 2021
Residual RMS
0.49 ″
Solution · Otto Matic
15 April 2021

Physical properties

Mean radius
0.06 km

Visual & observation

Geometric albedo
0.12
Absolute magnitude (H)
22.7

Discovery & classification

Aten Near-Earth Object

Close approaches 231 on record

Flyby geometry
Ecliptic flyby of 2010 AJ30 at 2029-01-04 03:50 UTC Top-down view of the ecliptic, Earth at the centre, for the 2029-01-04 03:50 UTC close approach of 2010 AJ30. Catalogue miss distance 31.0 LD · 1.19 × 10⁷ km. The curve is the geocentric path from 2029-01-01 to 2029-01-07, 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 31.0 LD · 1.19 × 10⁷ km 2029-01-04 03:50 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2029-01-04 03:50 UTC close approach of 2010 AJ30. Catalogue miss distance 31.0 LD · 1.19 × 10⁷ km. The curve is the geocentric path from 2029-01-01 to 2029-01-07, 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
2027-02-17 20:06:00 Venus 0.1239 AU 48.2 LD 10.7 km/s
2029-01-04 03:50:00 Earth 0.0796 AU 31.0 LD 7.1 km/s
2031-08-30 05:18:00 Earth 0.4108 AU 159.9 LD 13.7 km/s
2031-09-15 06:09:00 Venus 0.13 AU 50.6 LD 9.8 km/s
2032-02-14 07:29:00 Earth 0.2474 AU 96.3 LD 15.4 km/s
2034-07-10 09:47:00 Earth 0.4505 AU 175.3 LD 16.5 km/s
2036-12-13 02:27:00 Earth 0.1631 AU 63.5 LD 11.8 km/s
2037-05-17 19:07:00 Earth 0.39 AU 151.8 LD 11.2 km/s
2038-11-01 15:30:00 Venus 0.1273 AU 49.5 LD 10.1 km/s
2039-10-02 05:15:00 Earth 0.3414 AU 132.9 LD 8.5 km/s

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

Sources