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Asteroid Near-Earth

2016 EM157

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(2016 EM157)

Where is it now

Distance from Sun
0.624 AU
True anomaly
41°
Distance from Earth
0.707 AU
As of
19 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 2016 EM157 — 0.624 AU from the Sun 2016 EM157
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2016 EM157 is 0.707 AU from Earth today (5.9 light-minutes).

In the sky

Right ascension
11h 05m 29s
Declination
-03° 50′ 12″
Constellation
Leo
Distance from Earth
0.71 AU
Elongation from the Sun
38.69° — 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
0.842 AU
Eccentricity
0.3002
Inclination
10.3°
Orbital period
282 days
Perihelion
0.589 AU
Aphelion
1.094 AU
Longitude of ascending node
171.1°
Argument of periapsis
218.31°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 2.0 LD
0.0051 AU
Tisserand (Jupiter)
6.938

Orbit quality

Orbit poorly determined (uncertainty code 6).

Observations used
41
Data arc
3 days
First observed
14 March 2016
Last observed
17 March 2016
Residual RMS
0.56 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
26.9

Discovery & classification

Aten Near-Earth Object

Close approaches 94 on record

Flyby geometry
Ecliptic flyby of 2016 EM157 at 2029-11-11 20:59 UTC Top-down view of the ecliptic, Earth at the centre, for the 2029-11-11 20:59 UTC close approach of 2016 EM157. Catalogue miss distance 159.5 LD · 6.13 × 10⁷ km. The curve is the geocentric path from 2029-11-08 to 2029-11-14, 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 159.5 LD · 6.13 × 10⁷ km 2029-11-11 20:59 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2029-11-11 20:59 UTC close approach of 2016 EM157. Catalogue miss distance 159.5 LD · 6.13 × 10⁷ km. The curve is the geocentric path from 2029-11-08 to 2029-11-14, 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
2029-09-30 16:22:00 Venus 0.1484 AU 57.8 LD 15.1 km/s
2029-11-11 20:59:00 Earth 0.41 AU 159.5 LD 14.1 km/s
2030-05-22 19:13:00 Earth 0.3206 AU 124.8 LD 15.7 km/s
2032-11-04 13:45:00 Venus 0.1112 AU 43.3 LD 12.2 km/s
2033-03-23 06:41:00 Earth 0.0965 AU 37.5 LD 7.3 km/s
2033-07-26 09:24:00 Earth 0.2965 AU 115.4 LD 8 km/s
2035-12-12 19:42:00 Venus 0.107 AU 41.6 LD 11.1 km/s
2036-03-18 10:59:00 Earth 0.387 AU 150.6 LD 20.1 km/s
2036-10-03 13:18:00 Earth 0.4065 AU 158.2 LD 15.2 km/s
2039-01-20 12:23:00 Venus 0.1182 AU 46.0 LD 11.3 km/s

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

Sources