SpaceAtlas Space Object Data
NASA JPL SBDB · 2012 BZ34

2012 BZ34

2012 BZ34 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.712 AU once every 2.24 yr.

Amor Observations: 41
Orbital Period · P
2.24 yr
v(q)
33.5 km/s
v(Q)
15.5 km/s
Diameter · ≈
0.12 km
TJ
3.97
Eccentricity · e
0.3675

Orbit and dynamics

The path is an ellipse reaching 1.083 AU from the Sun at perihelion and 2.341 AU at aphelion, a radial span of 1.258 AU.

Applying Kepler's third law to a = 1.712 AU gives an orbital period of 2.24 yr, or about 818 days.

An eccentricity of 0.367 makes the orbit moderately elongated.

A steep inclination of 29.57° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 33.5 km/s at perihelion and falls to 15.5 km/s at aphelion.

Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 22.4 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.12 km.

Observation record and orbit quality

The current orbit solution is based on 41 observations and has a weighted RMS residual of 0.5232 arcseconds.

Condition code U = 1 means the orbit is very well determined, leaving only a small uncertainty in the future ephemeris.

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
1.712 AU
Eccentricity
0.3675
Perihelion
1.083 AU
Aphelion
2.34116 AU
Inclination
29.57°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
180.17°

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
2058-Sep-02 08:10 0.493102 AU
73767073 km
14.55 km/s
2059-Jan-17 17:53 0.334774 AU
50081439 km
19.01 km/s
2068-Jan-16 14:58 0.270014 AU
40393459 km
16.36 km/s
2077-Jan-17 21:38 0.363626 AU
54397626 km
15.15 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
22.4

Orbit Quality

RMS
0.52317
Condition
1
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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