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Asteroid Near-Earth

2010 EX11

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(2010 EX11)

Where is it now

Distance from Sun
0.871 AU
True anomaly
39.01°
Distance from Earth
0.894 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 2010 EX11 — 0.871 AU from the Sun 2010 EX11
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2010 EX11 is 0.894 AU from Earth today (7.4 light-minutes).

In the sky

Right ascension
10h 45m 36s
Declination
+18° 01′ 04″
Constellation
Leo
Distance from Earth
0.9 AU
Elongation from the Sun
54.56° — near the Sun — look low at dusk or dawn

Favours the northern hemisphere; low or below the horizon from far south.

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
0.956 AU
Eccentricity
0.1096
Inclination
9.75°
Orbital period
341.5 days
Perihelion
0.851 AU
Aphelion
1.061 AU
Longitude of ascending node
3.9°
Argument of periapsis
42.79°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 11.0 LD
0.0282 AU
Tisserand (Jupiter)
6.282

Orbit quality

Orbit very well determined (uncertainty code 1).

Observations used
145
Data arc
14.12 years
First observed
3 March 2010
Last observed
17 April 2024
Residual RMS
0.46 ″
Solution · Otto Matic
29 July 2024

Physical properties

Mean radius
0.02 km
Rotation period
9.4 hours

Visual & observation

Geometric albedo
0.234
Absolute magnitude (H)
24.11

Discovery & classification

Aten Near-Earth Object

Close approaches 91 on record

Flyby geometry
Ecliptic flyby of 2010 EX11 at 2038-03-16 23:36 UTC Top-down view of the ecliptic, Earth at the centre, for the 2038-03-16 23:36 UTC close approach of 2010 EX11. Catalogue miss distance 106.5 LD · 4.09 × 10⁷ km. The curve is the geocentric path from 2038-03-13 to 2038-03-19, 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 106.5 LD · 4.09 × 10⁷ km 2038-03-16 23:36 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2038-03-16 23:36 UTC close approach of 2010 EX11. Catalogue miss distance 106.5 LD · 4.09 × 10⁷ km. The curve is the geocentric path from 2038-03-13 to 2038-03-19, 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
2038-03-16 23:36:00 Earth 0.2737 AU 106.5 LD 11.7 km/s
2038-12-15 06:49:00 Earth 0.1932 AU 75.2 LD 3.8 km/s
2039-04-08 03:42:00 Earth 0.1049 AU 40.8 LD 5.3 km/s
2039-08-30 11:17:00 Earth 0.1255 AU 48.8 LD 6.2 km/s
2040-06-24 08:59:00 Earth 0.3741 AU 145.6 LD 12.9 km/s
2052-03-19 07:56:00 Earth 0.3803 AU 148.0 LD 14.8 km/s
2053-03-22 05:20:00 Earth 0.0302 AU 11.7 LD 5.5 km/s
2053-09-20 22:09:00 Earth 0.1259 AU 49.0 LD 6.3 km/s
2054-06-30 22:25:00 Earth 0.2905 AU 113.1 LD 10.1 km/s
2066-03-20 17:29:00 Earth 0.4149 AU 161.5 LD 15.8 km/s

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

Sources