Where is it now
- Distance from Sun
- 1.358 AU
- True anomaly
- 156.39°
- Distance from Earth
- 1.911 AU
- As of
- 24 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
- 16h 51m 53s
- Declination
- -19° 08′ 39″
- Constellation
- Ophiuchus
- Distance from Earth
- 1.91 AU
- Elongation from the Sun
- 42.6° — 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
- 0.968 AU
- Eccentricity
- 0.5407
- Inclination
- 11.22°
- Orbital period
- 348.1 days
- Perihelion
- 0.445 AU
- Aphelion
- 1.492 AU
- Longitude of ascending node
- 128.23°
- Argument of periapsis
- 358.59°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 60.2 LD
- 0.1548 AU
- Tisserand (Jupiter)
- 6.085
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 197
- Data arc
- 8.18 years
- First observed
- 3 July 2010
- Last observed
- 7 September 2018
- Residual RMS
- 0.57 ″
- Solution · Otto Matic
- 1 March 2023
Physical properties
- Mean radius
- 0.11 km
Visual & observation
- Geometric albedo
- 0.264
- Absolute magnitude (H)
- 20.28
Discovery & classification
- Discovered by
- WISE
- Discovery date
- 3 July 2010
- Discovery site
- WISE
Also known as 2010 NJ1
Close approaches 217 on record
Top-down view of the ecliptic, Earth at the centre, for the 2030-06-18 17:30 UTC close approach of 365449. Catalogue miss distance 142.8 LD · 5.49 × 10⁷ km. The curve is the geocentric path from 2030-06-15 to 2030-06-21, 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 |
|---|---|---|---|---|
| 2028-01-25 17:30:00 | Mars | 0.0419 AU | 16.3 LD | 11.5 km/s |
| 2029-04-07 20:45:00 | Venus | 0.1174 AU | 45.7 LD | 21.3 km/s |
| 2029-12-01 16:00:00 | Mars | 0.075 AU | 29.2 LD | 10.7 km/s |
| 2030-06-18 17:30:00 | Earth | 0.3669 AU | 142.8 LD | 26.3 km/s |
| 2031-06-08 13:11:00 | Earth | 0.1703 AU | 66.3 LD | 17.9 km/s |
| 2032-06-11 00:19:00 | Earth | 0.2594 AU | 100.9 LD | 12 km/s |
| 2033-03-25 01:53:00 | Earth | 0.4725 AU | 183.9 LD | 17.5 km/s |
| 2033-07-03 06:04:00 | Earth | 0.4027 AU | 156.7 LD | 12.7 km/s |
| 2034-07-21 19:22:00 | Earth | 0.4684 AU | 182.3 LD | 13.4 km/s |
| 2035-08-07 23:24:00 | Earth | 0.4688 AU | 182.4 LD | 13.4 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