SpaceAtlas Space Object Data
NASA JPL SBDB · 314212

314212

314212 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.133 AU it takes 3.12 yr to circle the Sun.

Apollo Observations: 179
Orbital Period · P
3.12 yr
v(q)
44.3 km/s
v(Q)
9.4 km/s
Diameter · ≈
0.69 km
TJ
3.41
Eccentricity · e
0.6507

Orbit and dynamics

The path is an ellipse reaching 0.745 AU from the Sun at perihelion and 3.521 AU at aphelion, a radial span of 2.776 AU.

Applying Kepler's third law to a = 2.133 AU gives an orbital period of 3.12 yr, or about 1,138 days.

The high eccentricity (0.651) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 6.46° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 44.3 km/s at perihelion and falls to 9.4 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 = 18.57 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.69 km.

Observation record and orbit quality

The current orbit solution is based on 179 observations and has a weighted RMS residual of 0.6376 arcseconds.

Condition code U = 0 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
2.133 AU
Eccentricity
0.6507
Perihelion
0.745 AU
Aphelion
3.520943 AU
Inclination
6.46°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
235.64°

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
2033-Aug-11 19:05 0.126616 AU
18941412 km
20.57 km/s
2036-Nov-16 16:51 0.257902 AU
38581564 km
14.00 km/s
2040-Jan-28 15:16 0.348238 AU
52095647 km
27.21 km/s
2061-Aug-09 04:35 0.181558 AU
27160707 km
22.14 km/s
2064-Nov-04 17:07 0.268584 AU
40179529 km
14.44 km/s
2068-Jan-26 10:42 0.306091 AU
45790605 km
25.80 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
18.57

Orbit Quality

RMS
0.63764
Condition
0
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.

Keep exploring

Explore asteroids, comets and near-Earth objects with JPL orbital data.