2012 XJ16 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.81 AU to 1.21 AU from the Sun; one orbit takes 371.2 days. Orbit from the JPL solution of 15 April 2021.
Where is it now
- Distance from Sun
- 1.197 AU
- True anomaly
- 163.19°
- Distance from Earth
- 1.034 AU
- As of
- 3 November 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
- 19h 54m 55s
- Declination
- -39° 15′ 11″
- Constellation
- Sagittarius
- Distance from Earth
- 1.04 AU
- Elongation from the Sun
- 72.38° — well clear of the Sun
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
- 1.011 AU
- Eccentricity
- 0.1969
- Inclination
- 15.74°
- Orbital period
- 371.2 days
- Perihelion
- 0.812 AU
- Aphelion
- 1.21 AU
- Longitude of ascending node
- 69.01°
- Argument of periapsis
- 114.92°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 23.0 LD
- 0.0591 AU
- Tisserand (Jupiter)
- 5.979
Orbit quality
Orbit poorly determined (uncertainty code 7).
- Observations used
- 27
- Data arc
- 8 days
- First observed
- 6 December 2012
- Last observed
- 14 December 2012
- Residual RMS
- 0.44 ″
- Solution · Otto Matic
- 15 April 2021
Visual & observation
- Absolute magnitude (H)
- 23.7
Discovery & classification
Close approaches 24 on record
Top-down view of the ecliptic, Earth at the centre, for the 2199-12-05 21:23 UTC close approach of 2012 XJ16. Catalogue miss distance 124.3 LD · 4.78 × 10⁷ km. The curve is the geocentric path from 2199-12-02 to 2199-12-08, 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 |
|---|---|---|---|---|
| 2199-12-05 21:23:00 | Earth | 0.3194 AU | 124.3 LD | 17.1 km/s |
| 2200-12-08 23:12:00 | Earth | 0.2233 AU | 86.9 LD | 14.5 km/s |
Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.
Sources
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB