SpaceAtlas Space Object Data
NASA JPL SBDB · 510190

510190

510190 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.299 AU it takes 1.48 yr to circle the Sun.

Apollo Observations: 288
Orbital Period · P
1.48 yr
v(q)
36.5 km/s
v(Q)
18.7 km/s
Diameter · ≈
0.29 km
TJ
4.94
Eccentricity · e
0.3229

Orbit and dynamics

Between its closest point (0.88 AU) and its farthest (1.718 AU), the heliocentric distance changes by 0.838 AU over every revolution.

One full revolution takes 1.48 yr (541 days), computed from the semi-major axis of 1.299 AU.

An eccentricity of 0.323 makes the orbit moderately elongated.

The orbital plane is tilted 10.53° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 36.5 km/s at perihelion and falls to 18.7 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 = 20.43 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.29 km.

Observation record and orbit quality

Astrometry from 288 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4645 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
1.299 AU
Eccentricity
0.3229
Perihelion
0.88 AU
Aphelion
1.718447 AU
Inclination
10.53°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
336.69°

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
2060-Aug-11 21:35 0.155108 AU
23203844 km
9.11 km/s
2063-Jun-24 21:16 0.117539 AU
17583590 km
9.20 km/s
2066-May-19 14:59 0.178453 AU
26696202 km
12.58 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
20.43

Orbit Quality

RMS
0.46454
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.