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Asteroid Near-Earth

243025

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243025 (2006 UM216)

Where is it now

Distance from Sun
3.951 AU
True anomaly
193.68°
Distance from Earth
4.811 AU
As of
11 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.

Orbit of Mercury Orbit of Venus Orbit of Mars Sun Earth — 0.998 AU from the Sun Earth 243025 — 3.951 AU from the Sun 243025
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 243025 is 4.811 AU from Earth today (40.0 light-minutes).

In the sky

Right ascension
14h 47m 26s
Declination
-20° 39′ 21″
Constellation
Libra
Distance from Earth
4.81 AU
Elongation from the Sun
26.86° — near the Sun — look low at dusk or dawn

Favours the southern hemisphere; low or below the horizon from far north.

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
2.674 AU
Eccentricity
0.5235
Inclination
15.89°
Orbital period
4.37 years
Perihelion
1.274 AU
Aphelion
4.075 AU
Longitude of ascending node
251.06°
Argument of periapsis
146.68°
Epoch · J2000
2461200.5
Orbit class · AMO
Amor
Earth MOID · 122.4 LD
0.3144 AU
Tisserand (Jupiter)
3.121

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
870
Data arc
71.17 years
First observed
31 January 1954
Last observed
3 April 2025
Residual RMS
0.38 ″
Solution · Otto Matic
4 April 2025

Physical properties

Mean radius
1.06 km
Rotation period
31.73 hours

Visual & observation

Geometric albedo
0.139
Absolute magnitude (H)
16.05

Discovery & classification

Discovered by
CSS
Discovery date
21 October 2006
Discovery site
Catalina

Also known as 2006 UM216

Amor Near-Earth Object

Close approaches 7 on record

When (UTC) Body Distance Lunar distances Relative speed
2066-03-28 11:00:00 Juptr 1.6576 AU 645.1 LD 3.9 km/s
2101-04-29 21:42:00 Juptr 1.5076 AU 586.7 LD 4.2 km/s
2136-05-28 18:27:00 Juptr 1.8791 AU 731.3 LD 5.1 km/s
2184-11-11 16:48:00 Juptr 1.6219 AU 631.2 LD 4.1 km/s

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

Sources