SpaceAtlas Space Object Data
NASA JPL SBDB · 2015 VO142

2015 VO142

2015 VO142 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.092 AU it takes 1.14 yr to circle the Sun.

Apollo Observations: 178
Orbital Period · P
1.14 yr
v(q)
32.6 km/s
v(Q)
24.9 km/s
Diameter · ≈
0.01 km
TJ
5.67
Eccentricity · e
0.1325

Orbit and dynamics

Between its closest point (0.947 AU) and its farthest (1.237 AU), the heliocentric distance changes by 0.29 AU over every revolution.

One full revolution takes 1.14 yr (417 days), computed from the semi-major axis of 1.092 AU.

An eccentricity of 0.133 makes the orbit moderately elongated.

Its inclination of 0.39° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 32.6 km/s at perihelion and falls to 24.9 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 = 28.88 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

Astrometry from 178 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4256 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
1.092 AU
Eccentricity
0.1325
Perihelion
0.947 AU
Aphelion
1.23669 AU
Inclination
0.39°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
115.91°

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
2034-Jan-13 14:21 0.036301 AU
5430506 km
2.31 km/s
2041-Dec-05 13:09 0.007589 AU
1135284 km
2.73 km/s
2042-Apr-15 15:07 0.127249 AU
19036190 km
1.73 km/s
2048-Nov-11 13:08 0.191133 AU
28593077 km
8.68 km/s
2070-Oct-06 23:47 0.144641 AU
21637997 km
2.43 km/s
2071-Mar-08 15:44 0.017989 AU
2691181 km
3.50 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
28.88

Orbit Quality

RMS
0.42565
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.