Skip to content
Public Universe
Asteroid Near-Earth

2011 EH17

Add to an observing list or journal →

(2011 EH17)

Where is it now

Distance from Sun
1.004 AU
True anomaly
153.23°
Distance from Earth
1.879 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 2011 EH17 — 1.004 AU from the Sun 2011 EH17
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2011 EH17 is 1.879 AU from Earth today (15.6 light-minutes).

In the sky

Right ascension
12h 10m 19s
Declination
-01° 25′ 06″
Constellation
Virgo
Distance from Earth
1.88 AU
Elongation from the Sun
20.41° — 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
0.731 AU
Eccentricity
0.6599
Inclination
2.99°
Orbital period
228.1 days
Perihelion
0.248 AU
Aphelion
1.213 AU
Longitude of ascending node
332.99°
Argument of periapsis
36.04°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 2.9 LD
0.0074 AU
Tisserand (Jupiter)
7.683

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
71
Data arc
14.99 years
First observed
6 March 2011
Last observed
3 March 2026
Residual RMS
0.61 ″
Solution · Otto Matic
4 March 2026

Visual & observation

Absolute magnitude (H)
24.82

Discovery & classification

Aten Near-Earth Object

Close approaches 329 on record

Flyby geometry
Ecliptic flyby of 2011 EH17 at 2028-04-23 09:44 UTC Top-down view of the ecliptic, Earth at the centre, for the 2028-04-23 09:44 UTC close approach of 2011 EH17. Catalogue miss distance 38.9 LD · 1.49 × 10⁷ km. The curve is the geocentric path from 2028-04-20 to 2028-04-26, 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 38.9 LD · 1.49 × 10⁷ km 2028-04-23 09:44 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2028-04-23 09:44 UTC close approach of 2011 EH17. Catalogue miss distance 38.9 LD · 1.49 × 10⁷ km. The curve is the geocentric path from 2028-04-20 to 2028-04-26, 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
2027-03-01 10:18:00 Venus 0.0605 AU 23.5 LD 26.7 km/s
2027-10-13 22:35:00 Venus 0.06 AU 23.4 LD 23.5 km/s
2028-04-23 09:44:00 Earth 0.0999 AU 38.9 LD 15.4 km/s
2028-05-26 22:05:00 Venus 0.1089 AU 42.4 LD 20.6 km/s
2031-03-03 02:39:00 Earth 0.0536 AU 20.9 LD 16.1 km/s
2031-08-03 10:46:00 Merc 0.0922 AU 35.9 LD 19.8 km/s
2031-08-03 10:46:00 Mercury 0.0922 AU 35.9 LD 19.8 km/s
2033-04-24 03:29:00 Earth 0.0919 AU 35.8 LD 15.6 km/s
2034-09-14 13:13:00 Mercury 0.0397 AU 15.5 LD 24.7 km/s
2034-09-14 13:13:00 Merc 0.0397 AU 15.5 LD 24.7 km/s

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

Sources