SpaceAtlas Space Object Data
NASA JPL SBDB · 2013 SP19

2013 SP19

2013 SP19 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.285 AU it takes 1.46 yr to circle the Sun.

Apollo Observations: 21
Orbital Period · P
1.46 yr
v(q)
33.5 km/s
v(Q)
20.6 km/s
Diameter · ≈
0.01 km
TJ
5.01
Eccentricity · e
0.2391

Orbit and dynamics

The path is an ellipse reaching 0.978 AU from the Sun at perihelion and 1.592 AU at aphelion, a radial span of 0.614 AU.

Applying Kepler's third law to a = 1.285 AU gives an orbital period of 1.46 yr, or about 532 days.

An eccentricity of 0.239 makes the orbit moderately elongated.

Its inclination of 2.33° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 33.5 km/s at perihelion and falls to 20.6 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 = 29.2 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

The current orbit solution is based on 21 observations and has a weighted RMS residual of 0.5844 arcseconds.

Condition code U = 7 signals a poorly constrained orbit, so its future path should be treated as provisional.

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
1.285 AU
Eccentricity
0.2391
Perihelion
0.978 AU
Aphelion
1.592243 AU
Inclination
2.33°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
280.87°

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
2029-Oct-09 15:31 0.046733 AU
6991171 km
9.46 km/s
2032-Jun-18 14:41 0.104180 AU
15585127 km
10.94 km/s
2045-Oct-20 04:49 0.222977 AU
33356855 km
14.81 km/s
2061-Apr-20 13:09 0.421025 AU
62984445 km
6.42 km/s
2061-Oct-21 11:39 0.343650 AU
51409327 km
15.38 km/s
2064-Jul-03 06:43 0.045212 AU
6763591 km
6.24 km/s
2077-Oct-13 13:27 0.099934 AU
14949988 km
10.85 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
29.2

Orbit Quality

RMS
0.58442
Condition
7
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.