SpaceAtlas Space Object Data
NASA JPL SBDB · 2012 XP134

2012 XP134

2012 XP134 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.207 AU it takes 1.33 yr to circle the Sun.

Apollo Observations: 51
Orbital Period · P
1.33 yr
v(q)
37.3 km/s
v(Q)
19.7 km/s
Diameter · ≈
0.01 km
TJ
5.22
Eccentricity · e
0.3079

Orbit and dynamics

Between its closest point (0.835 AU) and its farthest (1.579 AU), the heliocentric distance changes by 0.744 AU over every revolution.

One full revolution takes 1.33 yr (484 days), computed from the semi-major axis of 1.207 AU.

An eccentricity of 0.308 makes the orbit moderately elongated.

The orbital plane is tilted 5.63° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 37.3 km/s at perihelion and falls to 19.7 km/s at aphelion.

Because q < 1 AU and Q > 1 AU, this orbit geometrically intersects the region of Earth's orbit.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 27.5 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

Astrometry from 51 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3501 arcseconds.

Condition code U = 6 indicates a moderately constrained orbit; predictions decades ahead still carry noticeable uncertainty.

About these computed values

Orbital periods, perihelion and aphelion speeds, and diameter estimates on this page are computed by SpaceAtlas from the JPL SBDB orbital elements. They are derived quantities, not values copied from the source catalogue.

Orbital Parameters

Semi-Major Axis
1.207 AU
Eccentricity
0.3079
Perihelion
0.835 AU
Aphelion
1.578635 AU
Inclination
5.63°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
18.67°

Orbit diagram

The Sun sits at the focus (orange). Earth's orbit is the grey circle at 1 AU. The red dot marks the object's position at the catalog epoch.

3D orbit (interactive)

Drag to rotate; scroll or pinch to zoom. The Sun is at the focus (orange), Earth's orbit is the grey ring at 1 AU, and the red dot marks the object's current position.

Close approaches

Predicted close approaches to Earth, from NASA's Center for Near-Earth Object Studies (CNEOS).

Date (UTC)Miss distanceVelocity
2046-Jun-01 21:58 0.277853 AU
41566179 km
20.01 km/s
2050-May-26 11:15 0.138999 AU
20793958 km
16.15 km/s
2054-May-20 00:57 0.052305 AU
7824732 km
12.44 km/s
2058-May-13 09:42 0.053870 AU
8058864 km
9.08 km/s

Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
27.5

Orbit Quality

RMS
0.35009
Condition
6
Orbit ID
—
Data source: NASA JPL Small-Body Database · NASA CNEOS. Orbital periods, perihelion and aphelion speeds, and diameter estimates on this page are computed by SpaceAtlas from the JPL SBDB orbital elements. They are derived quantities, not values copied from the source catalogue.

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