2012 XB112 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.88 AU to 1.18 AU from the Sun; one orbit takes 381.1 days; it is about 2.5 × 10⁻³ km across. Orbit from the JPL solution of 15 April 2021.
Where is it now
- Distance from Sun
- 0.942 AU
- True anomaly
- 61.55°
- Distance from Earth
- 1.931 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
- 14h 51m 01s
- Declination
- -16° 04′ 34″
- Constellation
- Libra
- Distance from Earth
- 1.93 AU
- Elongation from the Sun
- 2.98° — too close to the Sun to observe
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
- 1.029 AU
- Eccentricity
- 0.1447
- Inclination
- 1.32°
- Orbital period
- 381.1 days
- Perihelion
- 0.88 AU
- Aphelion
- 1.178 AU
- Longitude of ascending node
- 76.89°
- Argument of periapsis
- 88.87°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 0.3 LD
- 0.0009 AU
- Tisserand (Jupiter)
- 5.938
Orbit quality
Orbit reasonably well determined (uncertainty code 3).
- Observations used
- 78
- Data arc
- 3 days
- First observed
- 11 December 2012
- Last observed
- 14 December 2012
- Residual RMS
- 0.37 ″
- Solution · Otto Matic
- 15 April 2021
Physical properties
- Mean radius
- 1.25 × 10⁻³ km
- Rotation period
- 0.04 hours
Visual & observation
- Absolute magnitude (H)
- 29.9
Discovery & classification
Listed by JPL impact monitoring; see the Sentry table for current probabilities.
Close approaches 43 on record
Top-down view of the ecliptic, Earth at the centre, for the 2035-11-30 17:03 UTC close approach of 2012 XB112. Catalogue miss distance 136.6 LD · 5.25 × 10⁷ km. The curve is the geocentric path from 2035-11-27 to 2035-12-03, 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. 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 |
|---|---|---|---|---|
| 2035-11-30 17:03:00 | Earth | 0.3509 AU | 136.6 LD | 14.7 km/s |
| 2036-12-12 15:31:00 | Earth | 0.0763 AU | 29.7 LD | 6.4 km/s |
| 2037-10-22 06:28:00 | Earth | 0.1444 AU | 56.2 LD | 3.6 km/s |
| 2038-03-03 03:38:00 | Earth | 0.1142 AU | 44.4 LD | 3.9 km/s |
| 2038-08-21 22:02:00 | Earth | 0.1622 AU | 63.1 LD | 3.9 km/s |
| 2039-06-11 05:08:00 | Earth | 0.0102 AU | 4.0 LD | 4.5 km/s |
| 2040-06-28 06:02:00 | Earth | 0.3569 AU | 138.9 LD | 14.6 km/s |
| 2055-12-14 09:19:00 | Earth | 0.1865 AU | 72.6 LD | 9.8 km/s |
| 2058-06-16 12:55:00 | Earth | 0.1078 AU | 42.0 LD | 7.3 km/s |
| 2059-07-03 12:24:00 | Earth | 0.4566 AU | 177.7 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)
- orbital elements: JPL SBDB