Where is it now
- Distance from Sun
- 1.692 AU
- True anomaly
- 260.47°
- Distance from Earth
- 2.461 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.
In the sky
- Right ascension
- 14h 59m 49s
- Declination
- -24° 18′ 23″
- Constellation
- Libra
- Distance from Earth
- 2.46 AU
- Elongation from the Sun
- 31.15° — 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.
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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
- 2.687 AU
- Eccentricity
- 0.663
- Inclination
- 22.27°
- Orbital period
- 4.41 years
- Perihelion
- 0.906 AU
- Aphelion
- 4.469 AU
- Longitude of ascending node
- 273.3°
- Argument of periapsis
- 71.39°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 52.2 LD
- 0.1342 AU
- Tisserand (Jupiter)
- 2.932
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 2,788
- Data arc
- 25.57 years
- First observed
- 2 July 2000
- Last observed
- 28 January 2026
- Residual RMS
- 0.34 ″
- Solution · Otto Matic
- 3 September 2026
Physical properties
- Rotation period
- 9.24 hours
Visual & observation
- Absolute magnitude (H)
- 15.48
- Spectral type (SMASS)
- Sr
Discovery & classification
- Discovered by
- Amburgey, L. L.
- Discovery date
- 2 July 2000
- Discovery site
- Fitchburg
Also known as 2000 NM
Close approaches 4 on record
Top-down view of the ecliptic, Earth at the centre, for the 2163-07-09 07:27 UTC close approach of 215188. Catalogue miss distance 58.7 LD · 2.26 × 10⁷ km. The curve is the geocentric path from 2163-07-06 to 2163-07-12, 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 north of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate.
| When (UTC) | Body | Distance | Lunar distances | Relative speed |
|---|---|---|---|---|
| 2163-07-09 07:27:00 | Earth | 0.1508 AU | 58.7 LD | 17.8 km/s |
| 2190-05-10 20:18:00 | Mars | 0.0764 AU | 29.7 LD | 17.5 km/s |
Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.
Sources
- visual properties: JPL SBDB (lookup)
- physical properties: JPL SBDB (lookup)
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB