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Asteroid Near-Earth

162186

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162186 (1999 OP3)

Where is it now

Distance from Sun
3.164 AU
True anomaly
139.39°
Distance from Earth
2.339 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 162186 — 3.164 AU from the Sun 162186
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 162186 is 2.339 AU from Earth today (19.5 light-minutes).

In the sky

Right ascension
22h 31m 12s
Declination
+22° 23′ 53″
Constellation
Pegasus
Distance from Earth
2.35 AU
Elongation from the Sun
138.94° — well clear of the Sun

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
2.708 AU
Eccentricity
0.6116
Inclination
27.59°
Orbital period
4.46 years
Perihelion
1.052 AU
Aphelion
4.365 AU
Longitude of ascending node
310.66°
Argument of periapsis
271.92°
Epoch · J2000
2461200.5
Orbit class · AMO
Amor
Earth MOID · 145.5 LD
0.3738 AU
Tisserand (Jupiter)
2.933

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
1,725
Data arc
36.2 years
First observed
24 July 1990
Last observed
6 October 2026
Residual RMS
0.45 ″
Solution · Otto Matic
10 October 2026

Physical properties

Rotation period
8.36 hours

Visual & observation

Absolute magnitude (H)
15.03

Discovery & classification

Discovered by
LINEAR
Discovery date
22 July 1999
Discovery site
Socorro

Also known as 1999 OP3

Amor Near-Earth Object

Sources